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Ada County Unincorporated
City Zoning Code

CHAPTER 3

OVERLAY DISTRICTS

8-3-1: OVERLAY DISTRICTS ESTABLISHED:

For the purpose of this title, the unincorporated territory of Ada County, Idaho, has the following categories of overlay districts:
   A.   Article A. Boise air terminal airport influence areas overlay district.
   B.   Article B. Wildland-urban fire interface overlay district.
   C.   Article C. Southwest planning area overlay district.
   D.   Article D. Planned unit development overlay district.
   E.   Article E. Area of military influence overlay district.
   F.   Article F. Flood hazard overlay district.
   G.   Article G. Boise River greenway overlay district.
   H.   Article H. Hillside overlay district.
   I.   Article I. Avimor planned community overlay district.
   J.   Article J. Reserved.
   K.   Article K. Cartwright Ranch planned community.
   L.   Article L. Reserved.
   M.   Article M. Reserved.
   N.   Article N. Dry Creek Ranch planned community. (Ord. 389, 6-14-2000; amd. Ord. 738, 2-23-2010; amd. Ord. 762, 10-13-2010; amd. Ord. 777, 5-11-2011; amd. Ord. 784, 6-8-2011; amd. Ord. 812, 8-14-2013)

8-3-2: ALLOWED USES:

A use that is allowed in the underlying base district may be prohibited subject to the regulations of an overlay district. With the exception of the planned unit development overlay district and any planned community overlay district, an overlay district shall not be construed to allow a use that is otherwise not allowed in the underlying base district. (Ord. 389, 6-14-2000; amd. Ord. 738, 2-23-2010)

8-3-3: MULTIPLE OVERLAY DISTRICTS:

Where a property is subject to the regulations of more than one overlay district as outlined in this chapter, the requirements of an overlay district shall not be waived or modified unless specifically authorized through procedures set forth in said overlay district. (Ord. 389, 6-14-2000)

8-3-4: STANDARDS AND REGULATIONS:

A planned community overlay district is subject to the standards and regulations that are applicable to all base districts unless different standards and regulations are specifically authorized in the planned community overlay district. (Ord. 738, 2-23-2010)

ARTICLE J. RESERVED

(Ord. 762, 10-13-2010)

ARTICLE L. RESERVED

(Ord. 777, 5-11-2011)

ARTICLE M. RESERVED

(Ord. 784, 6-8-2011)

8-3A-1: PURPOSE:

The purpose of this article is to:
   A.   Implement the goals, objectives, and policies of the applicable comprehensive plan as it relates to airport influence areas.
   B.   Provide for land uses that are compatible with aircraft noise, approach zones, and airport operations.
   C.   Establish the boundaries of the Boise air terminal airport influence areas overlay district.
   D.   Promote the public health, safety, and welfare by limiting and/or placing additional restrictions on land use activities within the Boise air terminal airport influence areas overlay district consistent with the federal aviation regulations part 150 noise compatibility study for Boise air terminal. The purpose of each influence area is as follows:
      1.   Influence area A: To establish use restrictions and noise attenuation standards for uses subject to noise levels of up to sixty five (65) dNL.
      2.   Influence area B-1: To establish use restrictions and noise attenuation standards for uses subject to noise levels of up to seventy (70) dNL, while acknowledging existing residential uses.
      3.   Influence area B: To establish use restrictions and noise attenuation standards for uses subject to noise levels of up to seventy (70) dNL.
      4.   Influence area C: To establish use restrictions and noise attenuation standards for uses subject to noise levels of up to seventy five (75) dNL or greater. (Ord. 389, 6-14-2000)

8-3A-2: APPLICABILITY:

These regulations shall apply to: new subdivisions and new construction, alteration, moving, or change of use of residential, commercial, or industrial structures within the overlay district as identified on the Boise air terminal airport influence areas map, the limits of which are adopted by ordinance 391 on file at the development services department, or as hereinafter may be amended. (Ord. 389, 6-14-2000)

8-3A-3: STANDARDS:

   A.   General Airport Influence Area Standards:
      1.   Prior to issuance of a zoning certificate, the applicant shall provide written documentation that the property owner has filed an avigation easement with the Boise air terminal.
      2.   Despite any other regulations of this title, no use shall be permitted within the airport influence areas that creates hazards to aircraft and/or impairs landing, takeoff, or maneuvering of aircraft.
      3.   Any principal permitted use within airport influence area C shall require conditional use approval. Agriculture and nonaccessory, off premises signs, as herein defined, shall be exempt from this regulation.
      4.   Within airport influence area B-1, new residential subdivisions shall not exceed a density of three (3) dwelling units per acre.
      5.   Within airport influence area B, new dwellings and/or new residential subdivisions shall be prohibited unless the subject property is designated for a residential land use in the applicable comprehensive plan.
      6.   No increase in residential density shall be allowed for properties within airport influence area B.
      7.   Within the runway approach zones, population density shall not exceed forty (40) people per acre within a structure and/or seventy five (75) people per acre outside a structure.
   B.   Additional Standards By Influence Area: The underlying base district establishes allowed uses. Table 8-3A-1 of this section lists the additional standards by use.
TABLE 8-3A-1: ADDITIONAL STANDARDS BY USE AND AIRPORT INFLUENCE AREA
Use
A
B-1
B
C
Use
A
B-1
B
C
Accessory structure
   *
   *
   *
   *
Adult entertainment establishment
   *
25 dBA
25 dBA
25 dBA
Adult respite care center
25 dBA
Prohibited
Prohibited
Prohibited
Agricultural produce stand
*
*
*
*
Agricultural service establishment
   *
25 dBA
25 dBA
25 dBA
Agricultural structure
   *
   *
   *
   *
Agricultural use
   *
   *
   *
   *
Aircraft landing field (private ownership)
   *
25 dBA
25 dBA
25 dBA
Airport (public ownership)
   *
25 dBA
25 dBA
25 dBA
Amusement or recreation facility, indoor
   *
25 dBA
25 dBA
25 dBA
Amusement or recreation facility, outdoor
   *
25 dBA
25 dBA
Prohibited
Animal boarding with outside runs
   *
25 dBA
25 dBA
25 dBA
Animal clinic, animal hospital, or veterinary office
   *
25 dBA
25 dBA
25 dBA
Asphalt or concrete ready mix plant
   *
25 dBA
25 dBA
25 dBA
Auction establishment, outdoor
   *
25 dBA
25 dBA
Prohibited
Automobile, major repair
   *
25 dBA
25 dBA
25 dBA
Automobile or recreational vehicle sales or service
   *
25 dBA
25 dBA
25 dBA
Automotive, hobby
   *
25 dBA
25 dBA
25 dBA
Bank
   *
25 dBA
25 dBA
25 dBA
Bar, brewpub, or nightclub
   *
25 dBA
25 dBA
25 dBA
Bed and breakfast establishment
25 dBA
30 dBA
Prohibited
Prohibited
Boarding house
25 dBA
30 dBA
Prohibited
Prohibited
Brewery or distillery
   *
25 dBA
25 dBA
25 dBA
Campground
25 dBA
Prohibited
Prohibited
Prohibited
Car wash
   *
25 dBA
25 dBA
25 dBA
Cemetery
   *
   *
   *
25 dBA
Children's treatment facility
25 dBA
30 dBA
Prohibited
Prohibited
Church2
   *
25 dBA
25 dBA
25 dBA
Clinic, medical (excluding animal or veterinary)
25 dBA
25 dBA
25 dBA
25 dBA
Club or lodge or social hall2
   *
25 dBA
25 dBA
25 dBA
Composting facility, commercial
   *
25 dBA
25 dBA
25 dBA
Contractor's yard or shop
   *
25 dBA
25 dBA
25 dBA
Crematory
   *
25 dBA
25 dBA
25 dBA
Dangerous or protected animals
   *
   *
   *
   *
Daycare center
25 dBA
Prohibited
Prohibited
Prohibited
Drive-up window service
   *
25 dBA
25 dBA
25 dBA
Drug and alcohol treatment facility
25 dBA
30 dBA
Prohibited
Prohibited
Duplex or single-family attached dwelling1
25 dBA
30 dBA
Prohibited
Prohibited
Dwelling, additional farm1
25 dBA
30 dBA
Prohibited
Prohibited
Dwelling, caretaker for an approved use
25 dBA
30 dBA
35 dBA
35 dBA
Dwelling, secondary attached1
25 dBA
30 dBA
Prohibited
Prohibited
Dwelling, secondary detached1
25 dBA
30 dBA
Prohibited
Prohibited
Dwelling, single-family detached1
25 dBA
30 dBA
35 dBA
Prohibited
Explosive manufacturing or storage2
   *
25 dBA
25 dBA
25 dBA
Family daycare home
25 dBA
30 dBA
Prohibited
Prohibited
Farm, garden, lumber, or building supply store
   *
25 dBA
25 dBA
25 dBA
Fence, barbed wire, electric wire, or other
   *
   *
   *
   *
Flammable substance storage2
   *
25 dBA
25 dBA
25 dBA
Foster home, group
25 dBA
30 dBA
Prohibited
Prohibited
Foundry
   *
25 dBA
25 dBA
25 dBA
Freight or truck terminal
   *
25 dBA
25 dBA
25 dBA
Fuel cell
   *
   *
   *
   *
Gasoline, diesel, or alternative fuel sales facility2
   *
25 dBA
25 dBA
25 dBA
Golf course and country club2
   *
25 dBA
25 dBA
Prohibited
Grain elevator
   *
25 dBA
25 dBA
25 dBA
Group daycare facility
25 dBA
Prohibited
Prohibited
Prohibited
Heavy equipment sales or service
   *
25 dBA
25 dBA
25 dBA
Home occupation
   *
   *
   *
   *
Hospital2
25 dBA
30 dBA
Prohibited
Prohibited
Hotel or motel
25 dBA
30 dBA
Prohibited
Prohibited
Junkyard or automobile wrecking yard
   *
25 dBA
25 dBA
25 dBA
Kennel, commercial
   *
25 dBA
25 dBA
25 dBA
Kennel, hobby
   *
25 dBA
25 dBA
25 dBA
Laundromat
   *
25 dBA
25 dBA
25 dBA
Laundry or linen supply
   *
25 dBA
25 dBA
25 dBA
Livestock confinement facility
   *
25 dBA
25 dBA
25 dBA
Manufacture of electronic or electrical products
   *
25 dBA
25 dBA
30 dBA
Manufacture or processing of hazardous chemicals or gases2
   *
25 dBA
25 dBA
25 dBA
Manufactured home1
25 dBA
30 dBA
Prohibited
Prohibited
Manufactured home park1
25 dBA
30 dBA
Prohibited
Prohibited
Manufactured home storage
   *
25 dBA
25 dBA
25 dBA
Manufactured home subdivision or park in a manufactured home district
25 dBA
30 dBA
Prohibited
Prohibited
Meatpacking facility
   *
25 dBA
25 dBA
25 dBA
Mortuary
   *
25 dBA
25 dBA
25 dBA
Multi-family development
25 dBA
30 dBA
Prohibited
Prohibited
Nursery, wholesale or retail
   *
25 dBA
25 dBA
25 dBA
Nursing facility, skilled2
25 dBA
30 dBA
Prohibited
Prohibited
Off street parking facility
   *
25 dBA
25 dBA
25 dBA
Office building
   *
25 dBA
25 dBA
25 dBA
Office, relating to an approved use
   *
25 dBA
25 dBA
25 dBA
Office, temporary construction
   *
   *
   *
   *
Outdoor storage
   *
25 dBA
25 dBA
25 dBA
Package and letter delivery service
   *
25 dBA
25 dBA
25 dBA
Personal, business, or professional service
   *
25 dBA
25 dBA
25 dBA
Pit, mine, or quarry
   *
   *
   *
   *
Portable classroom
25 dBA
Prohibited
Prohibited
Prohibited
Processing plant for agricultural or dairy products
   *
25 dBA
25 dBA
25 dBA
Product fabrication, assembly, or packaging
   *
25 dBA
25 dBA
25 dBA
Public or quasi-public use:
 
 
 
 
   Indoor
   *
25 dBA
25 dBA
25 dBA
   Outdoor
   *
25 dBA
25 dBA
Prohibited
Racetrack, vehicle or animal2
   *
25 dBA
25 dBA
Prohibited
Radio or television broadcasting station
   *
25 dBA
25 dBA
25 dBA
Railroad switching yard
   *
25 dBA
25 dBA
25 dBA
Recreational vehicle park
25 dBA
Prohibited
Prohibited
Prohibited
Recycling center
   *
25 dBA
25 dBA
25 dBA
Recycling plant
   *
25 dBA
25 dBA
25 dBA
Research and development facility
   *
25 dBA
25 dBA
30 dBA
Residential care facility
25 dBA
30 dBA
Prohibited
Prohibited
Restaurant or eating place
   *
25 dBA
25 dBA
25 dBA
Retail sales relating to an approved use
   *
25 dBA
25 dBA
25 dBA
Retail store
   *
25 dBA
25 dBA
25 dBA
Roadside produce stand
   *
   *
   *
   *
Sanitary landfill, restricted
   *
25 dBA
25 dBA
25 dBA
Sawmill or planing mill
   *
25 dBA
25 dBA
25 dBA
School, public or private2
25 dBA
Prohibited
Prohibited
Prohibited
School, vocational or trade2
25 dBA
Prohibited
Prohibited
Prohibited
Seasonal farmworker housing1
25 dBA
30 dBA
Prohibited
Prohibited
Shooting range, indoor or outdoor
   *
25 dBA
25 dBA
25 dBA
Slaughterhouse
   *
25 dBA
25 dBA
25 dBA
Soil or water remediation
   *
25 dBA
25 dBA
25 dBA
Stable or riding arena, commercial
25 dBA
25 dBA
25 dBA
Prohibited
Storage facility, self-service
   *
25 dBA
25 dBA
25 dBA
Structure >10,000 square feet
   *
25 dBA
25 dBA
25 dBA
Studio
   *
25 dBA
25 dBA
25 dBA
Swimming pool, private
   *
   *
   *
   *
Tannery
   *
25 dBA
25 dBA
25 dBA
Temporary living quarters1
25 dBA
30 dBA
Prohibited
Prohibited
Tower or antenna structure, commercial or private
Compliance with federal aviation regulations 14 CFR 77
Transit facility
   *
25 dBA
25 dBA
25 dBA
Truck stop
   *
25 dBA
25 dBA
25 dBA
   Lodging facilities
25 dBA
30 dBA
Prohibited
Prohibited
Vehicle impound yard
   *
25 dBA
25 dBA
25 dBA
Warehouse
   *
25 dBA
25 dBA
25 dBA
Winery
   *
25 dBA
25 dBA
25 dBA
 
Notes:
   1.   Not to exceed a density of 3 dwelling units per acre in the B-1 overlay district. Calculation shall be based on the individual property or on proposed development area for the master site plan, as applicable.
   2.   Prohibited in the runway approach zones.
Legend:
25 dBA - Sound attenuation measures to achieve a noise level reduction of 25 dBA are required for residential dwellings or establishments providing overnight lodging facilities. For commercial or industrial uses, measures to achieve a noise level reduction of 25 dBA shall be incorporated into the design and construction of reception, office, sleeping, animal confinement, and other noise sensitive areas.
30 dBA - Sound attenuation measures to achieve a noise level reduction of 30 dBA are required for residential dwellings or establishments providing overnight lodging facilities. For commercial or industrial uses, measures to achieve a noise level reduction of 30 dBA shall be incorporated into the design and construction of reception, office, sleeping, animal confinement, and other noise sensitive areas.
35 dBA - Sound attenuation measures to achieve a noise level reduction of 35 dBA shall be incorporated into the design and construction of reception, office, sleeping, eating, animal confinement, and other noise sensitive areas.
Prohibited - Any new use shall be prohibited. Existing uses shall be deemed nonconforming uses and shall be subject to the regulations of chapter 1, article B of this title.
* - The underlying base district regulates the use. No additional standards are required.
(Ord. 389, 6-14-2000; amd. Ord. 582, 5-25-2005; amd. Ord. 591, 7-27-2005; amd. Ord. 675, 11-14-2007; amd. Ord. 772, 7-27-2011; amd. Ord. 804, 11-14-2012)

8-3B-1: PURPOSE:

The purpose of this article is to protect the public health, safety, and welfare by establishing standards to:
   A.   Minimize the potential of spreading fire from wildland areas to structures;
   B.   Establish special standards that apply to new construction, alteration, moving, or change of use of habitable structures, with the intent to reduce the threat of loss of life and property from fire;
   C.   Require vehicle turnouts on new private roads with the intent to provide better emergency access to remote areas; and
   D.   Require that new subdivisions and planned unit developments provide water supply systems and suitable access for firefighting crews, with the intent to increase the resources available to such crews and minimize the spread of fire. (Ord. 389, 6-14-2000)

8-3B-2: APPLICABILITY:

   A.   These regulations shall apply to: 1) new subdivisions, 2) new private roads, and 3) new construction, alteration, moving, or change of use of residential, commercial or industrial structures within the overlay district as identified on the wildland-urban fire interface overlay district map, the limits of which are adopted by ordinance 391 on file at the county development services department, or as hereinafter may be amended.
   B.   Nonhabitable structures shall be exempt from these regulations, except when located within the defensible space as set forth in the regulations of subsection 8-3B-3A1 of this article. (Ord. 389, 6-14-2000)

8-3B-3: STANDARDS:

   A.   Vegetation Control:
      1.   Any new construction, alteration, moving, or change of use of a habitable structure shall be required to establish a minimum fifty foot (50') defensible space around the perimeter of any habitable structure. Property owners shall be responsible for maintaining the defensible space, unless such responsibility is transferred to another party through a binding contract. The defensible space shall meet the following criteria:
         a.   Only single specimens of trees, ornamental vegetation, cultivated ground cover (such as green grass, ivy, succulents, or similar plants), or native grasses and weeds trimmed to a maximum height of four inches (4"), are allowed within the defensible space, provided any such plants do not form a means of readily transmitting fire. All other vegetation shall be removed from the defensible space. See section 8-1A-2, "Figure 9", of this title.
         b.   All deadwood shall be removed from trees within the defensible space. Clusters or groups of trees shall be thinned such that the tree crowns do not overlap. Trees within the defensible space shall be pruned to remove all limbs located below six feet (6') from the adjacent grade. See section 8-1A-2, "Figure 10", of this title.
         c.   Tree crowns shall be pruned to maintain a minimum horizontal clearance of ten feet (10') from any structure or outlet of a chimney.
         d.   Liquefied petroleum gas containers shall be located within the defensible space in accord with the applicable code as adopted by the state of Idaho.
         e.   Firewood and combustible material shall not be stored in unenclosed spaces beneath structures, on decks, or under eaves, canopies, or other projections or overhangs. All firewood and combustible material stored in the defensible space shall be located a minimum of twenty feet (20') from structures and separated from the crown of trees by a minimum horizontal distance of fifteen feet (15').
         f.   Agricultural structures, as herein defined, shall not be allowed within the defensible space.
         g.   All accessory structures within the defensible space must meet the fire resistive construction standards for structures as established by the Ada County building code as set forth in title 7, chapter 2 of this code.
         h.   If an abutting public street or approved private road meets the standards for the defensible space as set forth above, the width of such roadway shall be counted as part of the defensible space.
      2.   All areas adjacent to private roads and driveways shall be cleared of vegetation. Single specimens of trees, ornamental vegetation, cultivated ground cover (such as green grass, ivy, succulents, or similar plants), or native grasses and weeds trimmed to a maximum height of four inches (4"), are allowed, provided any such plants do not form a means of readily transmitting fire.
         a.   For driveways, all areas within five feet (5') of each side of the driveway shall be cleared.
         b.   For private roads, the area encompassed by the travelway plus five feet (5') on each side of the travelway, measured from the outside edge of the travelway, shall be cleared of all flammable vegetation.
      3.   All vegetation shall be cleared from within thirty one inches (31") of any above grade electrical distribution and transmission lines.
      4.   All vegetation shall be cleared from within ten (10) radial feet of any noninsulated energized electrical conductor and associated live parts. Cultivated ground cover (such as green grass, ivy, succulents, or similar plants), or native grasses and weeds trimmed to a maximum height of four inches (4"), are allowed provided any such plants do not form a means of readily transmitting fire.
      5.   For new driveways, new construction, or moving of structures on a site, the areas that require vegetation removal shall be located within the property boundaries. The director may approve a lesser standard if one or both of the following findings can be made:
         a.   The property abuts a public or approved private road as set forth in subsection A1h of this section; and/or
         b.   Severe topographic or other site constraints exist that prohibit locating new construction to meet the specified standard.
      6.   For the purposes of this section, the term "cleared" shall mean the removal of all vegetation with the following exception: single specimens of trees, ornamental vegetation, cultivated ground cover (such as green grass, ivy, succulents, or similar plants), and native grasses and weeds trimmed to a maximum height of four inches (4"), are allowed provided any such plants do not form a means of readily transmitting fire.
      7.   It is not the intent of this section to require an owner to relocate existing habitable structures, driveways, or utilities, nor to require an owner to remove vegetation from an abutting property.
   B.   Private Roads:
      1.   Vehicular turnouts for emergency vehicles shall be required on all new private roads. Such turnouts shall be spaced at a maximum interval of seven hundred feet (700') and shall be a minimum of eight feet (8') wide and thirty feet (30') long. Road construction and vehicular turnarounds shall meet the private road standards as set forth in section 8-4D-4 of this title. Driveways that meet turnout standards shall be counted as turnouts, provided they are a minimum of twenty feet (20') wide and thirty feet (30') long.
      2.   Maintenance of the private road shall include vegetation control as specified in subsection A2b of this section.
   C.   New Subdivisions And Planned Unit Developments:
      1.   Fire hazards and emergency access roads shall be evaluated by a licensed fire professional engineer retained by the applicant to determine site specific hazards and proper accessibility for emergency vehicles. The licensed fire professional engineer shall also prepare a fire protection plan that is specifically tailored to the proposed subdivision or planned unit development and shall consist of the following:
         a.   Completed fire hazard severity form from the current international urban-wildland interface code, appendix C, using nationally recognized standards;
         b.   A fire protection plan map showing the roadway, turnouts, turnarounds, terminus and lots;
         c.   Determination of fuel model loading;
         d.   Required signage for turnouts, turnarounds and fire lane parking;
         e.   Required number and placement of turnouts based on development density and roadway width;
         f.   Requirements for fire resistance rated construction;
         g.   Required road width or required interconnected system of roadways and fire accesses.
      2.   The fire protection plan shall be reviewed by the applicable fire district, or if no fire district, the Ada County sheriff, with advice from the Idaho state fire marshal, as part of the agency review process of subdivisions and planned unit developments.
   D.   Alternative Development Proposal: The director may approve, or recommend approval of, an alternative development proposal when the overall design, as proposed by the applicant, meets or exceeds the intent and the requirements of this article and shall not be detrimental to public health, safety, and welfare. (Ord. 389, 6-14-2000; amd. Ord. 426, 9-26-2001; amd. Ord. 490, 4-9-2003; amd. Ord. 560, 8-24-2004; amd. Ord. 592, 8-2-2005; amd. Ord. 628, 7-12-2006; amd. Ord. 699, 6-18-2008)

8-3B-4: PROHIBITED USES:

Campgrounds and seasonal farmworker housing shall be prohibited within the wildland-urban fire interface overlay district. (Ord. 389, 6-14-2000)

8-3C-1: PURPOSE:

To establish standards to accommodate urban development in the southwest planning area of the Boise City comprehensive plan that is compatible with high ground water and drainage conditions and to ensure provision of urban public facilities, in addition to other applicable standards and procedures in this title. (Ord. 389, 6-14-2000; amd. Ord. 699, 6-18-2008)

8-3C-2: APPLICABILITY:

These development standards shall apply to development in the southwest planning area of the Boise City comprehensive plan, the limits of which are adopted by ordinance 391 on file at the county development services department, or as hereinafter may be amended. (Ord. 389, 6-14-2000)

8-3C-3: STANDARDS:

   A.   New development, excluding single-family detached dwellings on existing platted lots or on properties 2.5 acres or larger, shall be served by urban public facilities.
   B.   If an existing wastewater treatment system fails, as determined by the Central district health department, the property owner shall connect to the Boise sewer system, if a collection line is located within three hundred feet (300'). If a collection line is not located within three hundred feet (300'), then the existing wastewater treatment system may be replaced with a system approved by the Central district health department.
   C.   Creeks, streambeds, and riparian areas within new southwest community development shall be left in a natural state, not channeled, and kept free of any obstructions to water flows, excluding any necessary road and/or public service crossings. (Ord. 389, 6-14-2000; amd. Ord. 699, 6-18-2008)

8-3D-1: PURPOSE:

The purpose of the planned unit development (PUD) overlay district is to allow flexibility in site design and dimensional standards to develop residential, commercial and/or industrial uses not allowed individually within specific zoning districts, resulting in:
   A.   A more efficient, aesthetic and desirable use of open space and recreational amenities;
   B.   A density compatible with abutting development;
   C.   An integrated development that is served by urban public facilities;
   D.   Protection of existing natural, scenic, and historic resources; and
   E.   Protection of existing neighborhoods through buffering techniques including screen planting, open space, and landscaping. (Ord. 389, 6-14-2000; amd. Ord. 699, 6-18-2008)

8-3D-2: APPLICABILITY:

   A.   The proposed project area is within an area of city impact.
   B.   The minimum area for a planned unit development shall be five (5) acres.
   C.   The planned unit development overlay is required for any development or subdivision proposal that involves one or more of the following:
      1.   A mix of uses that are not allowed as principal permitted or conditional uses in the same base district;
      2.   Clustering of residential units away from physical constraints or hazardous areas. Such constraints include, but are not limited to, the following: flood hazards, unstable geologic conditions, soil conditions, topography, identified high ground water areas, and other characteristics that could threaten public health and/or safety; and/or
      3.   Deviation of dimensional standards to achieve dedicated open space and provide amenities not found in traditional subdivisions. (Ord. 389, 6-14-2000)

8-3D-3: PROCESS:

   A.   The applicant shall comply with the regulations for a zoning ordinance map amendment in chapter 7 of this title.
   B.   The applicant shall concurrently submit and obtain approval for a master site plan subject to the regulations of chapter 4, article E of this title.
   C.   The applicant shall concurrently submit and obtain approval for a development agreement subject to the regulations of chapter 7, article C of this title.
   D.   If appropriate, the applicant shall concurrently submit and obtain approval for a subdivision subject to the regulations of chapter 6 of this title.
   E.   The commission and board shall apply the standards listed in section 8-3D-4 of this article and the required findings listed in section 8-3D-5 of this article to determine whether or not to approve, approve with conditions, or deny the planned unit development.
   F.   Upon approval by the board that the planned unit development overlay and development agreement is in conformance with this title, the zoning ordinance map amendment shall be published. (Ord. 389, 6-14-2000)

8-3D-4: STANDARDS:

   A.   General Use Standards:
      1.   No more than twenty percent (20%) of the total area of the planned unit development shall be designated for uses not otherwise permitted in the base district.
      2.   The uses within the planned unit development are interconnected through a system of roadways and/or pathways as appropriate.
   B.   Residential Density Standards:
      1.   The allowable density for residential uses shall be the density established by the applicable comprehensive plan. Where the applicable comprehensive plan does not indicate an urban density for development, the minimum density shall be three (3) dwelling units per acre. Higher densities may be allowed in accord with the bonus provisions contained in this subsection B.
      2.   An increase in the average residential density may be allowed by incorporating dedicated open space or public use dedications into the planned unit development. All dedications shall be shown on the master site plan.
         a.   Additional Open Space Dedication: For each full additional percentage point of property in dedicated open space above the minimum requirements, the average residential density may be increased by the same percentage. In no event shall the maximum density for residential areas exceed an additional twenty five percent (25%) over the base density.
         b.   Public Amenity Dedications: A density bonus may be approved for dedications of facilities or interests in real property for public amenities. The maximum density bonus shall be as set forth in table 8-3D-1 of this section. See subsection 8-3D-5G of this article regarding required findings for mandatory dedication of facilities.
         c.   Public Amenity Defined: For the purposes of this article, the term "public amenity" shall include, but not be limited to, the following: school site, bike path, transit facility, park site, park and ride lot, and public safety facility such as police, fire, or emergency medical facilities.
TABLE 8-3D-1: DENSITY BONUS AS PERCENT OF TOTAL PROJECT
 
Area Of Land Designated As Public Use Facility Dedication As Percent Of Total Project Area
Maximum Density Bonus
15 percent
5 percent
20 percent
10 percent
25 percent
15 percent
 
   C.   Dedicated Open Space Uses: Dedicated open space uses shall comply with the regulations of chapter 4, article J of this title.
   D.   Commercial Uses: The following design standards shall apply to any proposed commercial uses within a planned unit development:
      1.   Joint parking facilities shall be planned to use common access points to public streets.
      2.   Screening shall be provided on the perimeter of commercial uses abutting the residential areas as provided in section 8-4F-6 of this title.
      3.   Commercial uses not allowed as a principal permitted or conditional use in the base district:
         a.   Shall be designed to share common design themes in landscaping, signs, architecture, and building bulk with other uses within the planned unit development; and
         b.   Shall not exceed a gross floor area of twenty thousand (20,000) square feet.
   E.   Industrial Uses: The following design standards shall apply to any proposed industrial uses within a PUD:
      1.   Landscaping shall be provided as required in section 8-4F-7 of this title for parking areas, loading areas, and outdoor storage areas of industrial materials.
      2.   Screening shall be provided on the perimeter of industrial uses abutting the residential areas as provided in section 8-4F-6 of this title.
      3.   Structure location shall be designed to promote efficient installation of utilities.
      4.   Industrial uses not allowed as a principal permitted or conditional use in the base district:
         a.   Shall be designed to share common design themes in landscaping, signage, architecture, and building bulk with other uses within the planned unit development; and
         b.   Shall not exceed a gross floor area of ten thousand (10,000) square feet.
   F.   Improvements:
      1.   Improvements, consistent with the standards established in the area or as designated in any officially adopted comprehensive plan or component thereof, shall be required as a condition of approval of a planned unit development.
      2.   In the event any improvements required as part of the planned unit development cannot be completed prior to submission of a final plat and/or signing of the master site plan, the applicant or owner shall deposit a surety as set forth in chapter 4, article K of this title.
   G.   Deviations: As part of the original application, the applicant may request, in writing, a deviation from the dimensional standards of this title. Where applicable, the proposed deviations shall be noted on the master site plan.
   H.   Alternative Development Standards: The director may approve, or recommend approval of, alternative development standards when the overall design, as proposed by the applicant, meets or exceeds the intent and the requirements of this article and shall not be detrimental to the public health, safety, and welfare. (Ord. 389, 6-14-2000; amd. Ord. 738, 2-23-2010)

8-3D-5: REQUIRED FINDINGS:

   A.   The arrangement of uses and/or structures conforms to the topography and natural landscape features;
   B.   The arrangement of uses and/or structures in the development shall not cause damage, hazard, or nuisance to persons or property in the vicinity;
   C.   The internal street system is designed for the efficient and safe flow of vehicles and pedestrians without having a disruptive influence upon the activities and functions contained within the development, nor place an undue burden upon existing transportation and other public services in the surrounding area;
   D.   Community facilities, such as a park, recreational, and dedicated open space areas are functionally related and accessible to all dwelling units via pedestrian and/or bicycle pathways. Dedicated open space shall abut any lots that have been reduced below the minimum property size and shall abut multi- family development within the planned unit development;
   E.   The proposal complies with the density standards set forth in this article;
   F.   The planned unit development district overlay is in conformance with the applicable comprehensive plan, future acquisition maps, area of city impact ordinance, and other applicable ordinances; and
   G.   Additional required findings for mandatory public use facility dedications:
      1.   The dedication of the public use facility is substantiated by the governing board responsible for the facility;
      2.   The public use facility shall serve the public interest in such location;
      3.   The public use facility is consistent with the applicable comprehensive plan; and
      4.   The area and location of property to be dedicated to the public use facility bears a reasonable relationship to the demand generated by the proposed development. (Ord. 389, 6-14-2000)

8-3E-1: PURPOSE:

The purpose of this article is to:
   A.   Implement the goals, objectives, and policies of the applicable comprehensive plan as it relates to the areas of military influence.
   B.   Provide for notification areas to ensure the Idaho national guard officials are made aware of land use applications within the area of military influence overlay district (AMI).
   C.   Establish the boundaries for the AMI consisting of:
      1.   A one-fourth (1/4) mile buffer along either side of the centerline of Pleasant Valley Road that extends from Gowen Field to the Orchard Combat Training Center to be known as the Military Tank Trail the limits of which are adopted by ordinance 811 under legal description A attached thereto; and
      2.   A buffer area surrounding the Orchard Combat Training Center the limits of which are adopted by ordinance 811 under legal description B attached thereto.
   D.   Promote the public health, safety, and welfare by having regulations and standards for new development within the AMI to ensure compatibility with military activity occurring in the AMI. (Ord. 812, 8-14-2013)

8-3E-2: APPLICABILITY:

These regulations shall apply to new subdivisions and new construction, and the alteration, moving, or change of use of residential, commercial, or industrial structures within the adopted AMI, excluding uses housed within structures that are either listed on the national register of historic places, structures identified by the Ada County historic preservation council as having historical significance, or structures identified as contributing in an archeological or historical survey or study accepted by the state historic preservation office. (Ord. 812, 8-14-2013)

8-3E-3: PROCESS:

Applications shall be transmitted to the appropriate agency, including, but not limited to, the following: national guard, Mountain Home military base, and the Boise Airport director. (Ord. 812, 8-14-2013)

8-3E-4: STANDARDS:

   A.   Uses that require a conditional use, master site plan, planned community or subdivision application located within the AMI shall address compatibility issues such as intermittent noise, dust, traffic, and other development design issues as to the extent necessary.
   B.   For subdivisions located within the AMI the following statement shall appear on the face of the final plat:
This development recognizes that it is in an Area of Military Influence (AMI) and as such there will be times during the course of the year that properties could be subject to intermittent dust, noise, and military traffic.
   C.   Development shall conform to FAR part 77 height limits or as may be amended as not to pose a safety hazard to air traffic. (Ord. 812, 8-14-2013)

8-3F-0: WARNING AND DISCLAIMER:

The degree of flood protection required by this article is considered reasonable for regulatory purposes and is based on scientific and engineering considerations. Larger floods can and will occur. Flood heights may be increased due to artificial or natural causes. This article does not imply that property outside the identified special flood hazard areas will be free from flooding or flood damages, or that uses permitted within the identified special flood hazard areas will be free from flooding or flood damages. This article shall not create liability on the part of Ada County, any officer or employee thereof, or the federal insurance and mitigation administration, for any flood damages that result from reliance on this article or any administrative decision lawfully made hereunder. (Ord. 835, 12-3-2014; Ord. 914, 6-10-2020)

8-3F-1: PURPOSE:

The purpose of this article is to promote public health, safety, and general welfare and to minimize public and private losses due to flood conditions in specific areas by provisions designed to:
   A.   Protect human life, health, and property;
   B.   Minimize damage to public facilities and utilities such as water purification and sewage treatment plants, water and gas mains, electric, telephone and sewer lines, streets, and bridges located in floodplains;
   C.   Help maintain a stable tax base by providing for the sound use and development of flood prone areas;
   D.   Minimize expenditure of public money for costly flood control projects;
   E.   Minimize the need for rescue and emergency services associated with flooding, generally undertaken at the expense of the general public;
   F.   Minimize prolonged business interruptions;
   G.   Ensure potential buyers are notified the property is in an area of special flood hazard; and
   H.   Ensure those who occupy the areas of special flood hazard assume responsibility for their actions. (Ord. 835, 12-3-2014; Ord. 914, 6-10-2020)

8-3F-2: AUTHORITY:

This article is adopted pursuant to Idaho Code section 46-1001, et seq., which authorizes local governments to adopt floodplain management ordinances that identify floodplains and minimum floodplain development standards to minimize flood hazards and protect human life, health, and property. (Ord. 835, 12-3-2014; Ord. 914, 6-10-2020)

8-3F-3: APPLICABILITY:

The regulations of this article shall apply to "development" as defined in this article, within all special flood hazard areas identified by one or more of the following:
   A.   The federal insurance and mitigation administration in a scientific and engineering report entitled "The Flood Insurance Study (FIS) For Ada County, Idaho," revised June 19, 2020, and all subsequent amendments and revisions, and the accompanying Flood Insurance Rate Maps (FIRM) and Digital Flood Insurance Rate Maps (DFIRMS), and all subsequent amendments and revisions to such maps, are hereby adopted by reference and serve as the basis for establishing flood hazard areas. Maps and studies that establish flood hazard areas are on file at the Ada County development services department.
   B.   Foothill or other hillside tributary floodways as herein defined.
   C.   Any area determined by the floodplain administrator to be a hazard to public health, safety, and welfare due to flooding, including, but not limited to, "development," as defined, necessary to comply with existing state or local health, sanitary, or safety code requirements. (Ord. 835, 12-3-2014; Ord. 914, 6-10- 2020)

8-3F-4: ADMINISTRATION:

   A.   Floodplain Administrator Responsibilities: The Director, and/or his/her designee, hereinafter referred to as the "Floodplain Administrator," is hereby appointed to administer and implement the provisions of this article and shall have the following responsibilities in all special flood hazard areas:
      1.   Review all floodplain development applications and issue permits for all proposed development within Special Flood Hazard Areas to assure that the requirements of this article have been satisfied.
      2.   Review all proposed development within Special Flood Hazard Areas to assure that all necessary Local, State, and Federal permits have been received, including Section 404 of the Federal Water Pollution Control Act Amendments of 1972, 33 USC section 1334.
      3.   Notify adjacent communities and the Idaho Department of Water Resources State Coordinator for the National Flood Insurance Program (NFIP) prior to any alteration or relocation of a watercourse. (This is the LOMC procedure.)
      4.   Assure that the flood carrying capacity within the altered or relocated portion of any watercourse is maintained. (This is a Hydraulic & Hydrology Analysis.)
      5.   Prevent encroachments into floodways unless the certification and flood hazard reduction provisions of section 8-3F-8-5 of this article are met.
      6.   Obtain and maintain actual elevation (in relation to mean sea level) of the lowest floor (including basement) and all attendant utilities of all new and substantially improved structures, in accordance with the provisions of section 8-3F-6 of this article.
      7.   Obtain and maintain actual elevation (in relation to mean sea level) to which all new and substantially improved structures and utilities have been floodproofed, in accordance with the provisions of section 8-3F-6 of this article.
      8.   Review plans to verify public utilities are constructed in accordance with the provisions of section 8-3F-7 of this article.
      9.   When floodproofing is utilized for a particular structure, obtain and maintain certifications from a registered professional engineer or architect in accordance with the provisions of section 8-3F-6 of this article.
      10.   Where interpretation is needed as to the exact location of boundaries of the Special Flood Hazard Areas, and floodways (for example, where there appears to be a conflict between a mapped boundary and actual field conditions), make the necessary interpretation. The person contesting the location of the boundary shall be given a reasonable opportunity to appeal the interpretation as provided in this article.
      11.   When Base Flood Elevation (BFE) data has not been provided in accordance with the provisions of section 8-3F-3 of this article, obtain, review, and reasonably utilize any BFE data, along with floodway data available from a Federal, State, or other source, including data developed pursuant to section 8-3F-6 of this article, in order to administer the provisions of this article.
      12.   When Base Flood Elevation (BFE) data is provided but no floodway data has been provided in accordance with the provisions of section 8-3F-3 of this article, require that no new construction, substantial improvements, or other development (including fill) shall be permitted within Zones A (or A1-30) and AE on Ada County's FIRM, unless it is demonstrated that the cumulative effect of the proposed development, when combined with all other existing and anticipated development, will not increase the water surface elevation of the base flood more than one foot at any point within Ada County. (This is a Hydraulic & Hydrology Analysis.)
      13.   When the lowest floor and the lowest adjacent grade of a structure or the lowest ground elevation of a parcel in a Special Flood Hazard Area (SFHA) is above the Base Flood Elevation (BFE), advise the property owner of the option to apply for a Letter of Map Amendment (LOMA) from FEMA. Maintain a copy of the LOMA issued by FEMA in the floodplain development permit file.
      14.   Permanently maintain all records that pertain to the administration of this article.
      15.   Make on-site inspections of work in progress. As the work pursuant to a floodplain development permit progresses, the floodplain administrator shall make as many inspections of the work as may be necessary to ensure that the work is being done according to the provisions of this article and the terms of the permit. In exercising this power, the floodplain administrator has a right, upon presentation of proper credentials, to enter on any premises within Ada County at any reasonable hour for the purposes of inspection or other enforcement action.
      16.   Issue stop-work orders as required. Whenever a building or part thereof is being constructed, reconstructed, altered, or repaired in violation of this article, the floodplain administrator may order the work to be immediately stopped. The stop-work order shall be in writing and directed to the person doing or in charge of the work. The stop-work order shall state the specific work to be stopped, the specific reason(s) for the stoppage, and the condition(s) under which the work may be resumed.
      17.   Revoke floodplain development permits as required. The Floodplain administrator may revoke and require the return of the floodplain development permit by notifying the permit holder in writing stating the reason(s) for the revocation. Permits shall be revoked for any substantial departure from the approved application, plans, and specifications; for refusal or failure to comply with the requirements of State or local laws; or for false statements or misrepresentations made in securing the permit. Any floodplain development permit mistakenly issued in violation of an applicable State or local law may also be revoked.
      18.   Make periodic inspections throughout the Special Flood Hazard Areas within Ada County.
      19.   Prohibit activities that violate the regulations of this article.
      20.   Review, provide input, and make recommendations for variance requests.
      21.   Maintain a current map repository to include, but not limited to, the FIS Report, FIRM and other official flood maps, and studies adopted in accordance with the provisions of section 8-3F-3 of this article, including any revisions thereto including Letters of Map Change, issued by FEMA. Notify the NFIP State Coordinator and FEMA of your community's mapping needs.
      22.   Coordinate revisions to FIS reports and FIRMs, including Letters of Map Revision Based on Fill (LOMR-Fs) and Letters of Map Revision (LOMRs).
   B.   Interpretation: All of the regulations of this article shall be considered as minimum requirements, shall be considered liberally construed in favor of the governing body and shall not be deemed to limit or repeal any other powers granted under state statutes. (Ord. 835, 12-3-2014; amd. Ord. 914, 6-10-2020)

8-3F-5: DEFINITIONS:

For the purposes of this article, the terms, as herein defined, shall be used in the administration of this article:
 
A ZONE:
A special flood hazard area delineated on the flood insurance rate map (FIRM) that is subject to inundation by the one percent (1%) annual chance flood event generally determined using approximate methodologies. Because detailed hydraulic analyses have not been performed, no base flood elevations or flood depths are shown.
AE ZONE:
A special flood hazard area delineated on the flood insurance rate map (FIRM) that is subject to inundation by the one percent (1%) annual chance flood event determined by detailed methods. Base flood elevations are shown.
AH ZONE:
A special flood hazard area delineated on the flood insurance rate map (FIRM) that is subject to inundation by one percent (1%) annual chance shallow flooding, usually in the form of a pond, where average depths are between one and three feet (3'). Base flood elevations derived from detailed hydraulic analyses are shown at selected intervals in this zone.
AO ZONE:
A special flood hazard area delineated on the flood insurance rate map (FIRM) that is a river or stream hazard area and subject to inundation by one percent (1%) annual chance shallow flooding, usually in the form of sheet flow, where average depths are between one and three feet (3'). Average flood depths derived from detailed hydraulic analyses are shown in this zone.
AREA OF SHALLOW FLOODING:
An area within the flood fringe shown on the flood insurance rate map (FIRM) as an AO or an AH zone; and where the base flood depths range from one to three feet (3'), a clearly defined channel does not exist, the path of flooding is unpredictable and indeterminate, and velocity flow may be evident. See AO ZONE.
BASE FLOOD:
The flood having a one percent (1%) chance of being equaled or exceeded each year. Also known as the "regulatory flood."
 
 
BASE FLOOD ELEVATION (BFE):
A determination by the Federal Insurance Administrator of the water surface elevations of the base flood, that is, the flood level that has a one percent or greater chance of occurrence in any given year. When the BFE has not been provided in a Special Flood Hazard Area, it may be obtained from engineering studies available from a Federal, State, or other source using FEMA-approved engineering methodologies. This elevation, when combined with the Freeboard, establishes the Flood Protection Elevation.
BASEMENT:
Any area of a structure having its floor subgrade (below ground level) on all sides, including a crawl space.
CHECK DAM:
A structure erected perpendicular to the direction of flow of floodwaters in a foothill or other hillside tributary floodplain, and which does not exceed ten feet (10') in height or fifty (50) acre-feet of storage capacity and is constructed for the purpose of reducing the velocity of floodwaters or reducing flood flows downstream or both. For the purposes of this article, energy dissipating devices shall be considered check dams.
CLEANING:
Mowing, cutting, or burning of weeds, trees and other nuisance growth, including algae growth, application of pesticides as permitted, removal of beaver dams, and removal of trash or other debris whether floating, lodged or otherwise obstructing the conveyance of water flow through channels and works.
CRITICAL FACILITIES:
Facilities that are vital to flood response activities or critical to the health and safety of the public before, during, and after a flood, such as a hospital, emergency operations center, electric substation, police station, fire station, nursing home, school, vehicle and equipment storage facility, or shelter; and facilities that, if flooded, would make the flood problem and its impacts much worse, such as a hazardous materials facility, power generation facility, water utility, or wastewater treatment plant.
 
 
DEVELOPMENT:
Development: any man-made change to improved or unimproved real estate, including but not limited to buildings or other structures, mining, dredging, filling, grading, paving, excavation or drilling operations, or storage of equipment or materials.
DEVELOPMENT ACTIVITY:
Any activity defined as Development which will necessitate a Floodplain Permit; This includes any manmade change to improved or unimproved real estate including, but not limited to, the construction of buildings, structures or accessory structures, or the construction of additions or substantial improvements to buildings, structures or accessory structures; the placement of mobile homes; filling, mining, dredging, grading, paving, excavation or drilling operations; storage of equipment and materials; and the deposition or extraction of materials; specifically including the construction of dikes, berms and levees.
DIGITAL FLOOD INSURANCE RATE MAP (DFIRM):
A digital representation of a flood insurance rate map (FIRM) within an electronic mapping application depicting both the special flood hazard areas and the risk premium zones applicable within Ada County.
DREDGING:
The removal of sediment from the bottom of streams creeks, irrigation and drainage channels and works.
ELEVATION CERTIFICATE:
The Elevation Certificate is an important administrative tool of the NFIP. It is used to determine the proper flood insurance premium rate; it is used to document elevation information; and it may be used to support a request for a Letter of Map Amendment (LOMA) or Letter of Map Revision based on fill (LOMR-F).
FLOOD ELEVATION STUDY (FES):
An examination, evaluation and determination of flood hazards, flood profiles, floodway boundaries and water surface elevation of the base flood.
FLOOD FRINGE:
The area between the floodway and the one hundred (100) year floodplain boundary, including the AO and A zones where no floodway is identified (see section 8-1A-2 , figure 18 of this title).
 
 
FLOOD INSURANCE RATE MAP (FIRM):
The official map of Ada County, on which the Federal Insurance Administrator has delineated both the special flood hazard areas and the risk premium zones applicable to Ada County. A FIRM that has been made available digitally is called a Digital Flood Insurance Rate Map (DFIRM).
FLOOD INSURANCE STUDY (FIS):
An examination, evaluation, and determination of flood hazards and, if appropriate, corresponding water surface elevations; or an examination, evaluation and determination of mudslide (i.e., mudflow) and/or flood-related erosion hazards.
FLOOD OR FLOODING:
A.   A general and temporary condition of partial or complete inundation of normally dry land areas from:
   1.   The overflow of inland or tidal waters.
   2.   The unusual and rapid accumulation or runoff of surface waters from any source.
   3.   Mudslides (i.e., mudflows) which are proximately caused by flooding as defined in paragraph A.2. of this definition and are akin to a river of liquid and flowing mud on the surfaces of normally dry land areas, as when earth is carried by a current of water and deposited along the path of the current.
B.   The collapse or subsidence of land along the shore of a lake or other body of water as a result of erosion or undermining caused by waves or currents of water exceeding anticipated cyclical levels or suddenly caused by an unusually high water level in a natural body of water, accompanied by a severe storm, or by an unanticipated force of nature, such as flash flood or an abnormal tidal surge, or by some similarly unusual and unforeseeable event which results in flooding as defined in paragraph A.1 of this definition.
 
 
FLOODPLAIN MANAGEMENT:
The operation of an overall program of corrective and preventive measures for reducing flood damage, including but not limited to emergency preparedness plans, flood control works, and flood plain management regulations.
FLOODPLAIN MANAGEMENT REGULATIONS:
Zoning articles, subdivision regulations, building codes, health regulations, special purpose articles (such as a flood plain article, grading article, and erosion control article), and other applications of police power. The term describes such state or local regulations, in any combination thereof, which provide standards for the purpose of flood damage prevention and reduction.
FLOODPROOFING:
Any combination of structural and non-structural additions, changes, or adjustments to structures which reduce or eliminate flood damage to real estate or improved real property, water and sanitary facilities, structures and their contents.
FLOOD PROTECTION ELEVATION (FPE):
The Base Flood Elevation plus the Freeboard.
A.   In "Special Flood Hazard Areas" where Base Flood Elevations (BFEs) have been determined, this elevation shall be the BFE plus one and a half feet (1.5') of freeboard; and
B.   In "Special Flood Hazard Areas" where no BFE has been established, this elevation shall be at least two feet (2') above the highest adjacent grade.
FLOODPLAIN:
Any land area susceptible to being inundated by floodwaters (see section 8-1A-2 , figure 18 of this title).
FLOODPLAIN AND BANK RESTORATION:
Is the reestablishment of the structure and function of ecosystems and floodplains to return the ecosystem as closely as possible to its natural conditions and functions prior to being developed or impacted by a natural event.
FLOODPROOFING:
Any combination of structural and nonstructural additions, changes, or adjustments to structures which reduce or eliminate flood damage to real estate or improved real property, water and sanitary facilities, structures and their contents.
 
 
FLOODPROOFING CERTIFICATE:
A FEMA form used to certify a floodproofing design for a nonresidential structure that is being floodproofed as an alternative to elevating the structure to or above the base flood elevation.
FLOODWAY:
The channel of a river or other watercourse and the adjacent land areas that must be reserved in order to discharge the base flood without cumulatively increasing the water surface elevation more than a designated height.
FOOTHILL OR HILLSIDE TRIBUTARY FLOODPLAIN:
A watercourse or drainageway located in the foothills or other hillside tributary that collects and carries waters draining from an area of greater than ten (10) acres in size.
FREEBOARD:
A factor of safety usually expressed in feet above a flood level for the purposes of floodplain management. Freeboard tends to compensate for the many unknown factors that could contribute to flood heights greater than the height calculated for a selected size flood and floodway conditions, such as wave action, obstructed bridge openings, debris and ice jams, and the hydrologic effects of urbanization in a watershed. The Base Flood Elevation (BFE) plus the freeboard establishes the Flood Protection Elevation (FPE). Freeboard shall be one and half feet (1.5').
FUNCTIONALLY DEPENDENT USE:
A facility that cannot be used for its intended purpose unless it is located or carried out in close proximity to water, such as a docking or port facility necessary for the loading and unloading of cargo or passengers, shipbuilding, or ship repair facilities. The term does not include long-term storage, manufacture, sales, or service facilities.
HIGHEST ADJACENT GRADE:
The highest natural elevation of the ground surface prior to construction, adjacent to the proposed walls of a structure. Refer to the FEMA Elevation Certificate for HAG related to building elevation information.
 
 
HISTORIC STRUCTURE:
A structure that is:
A.   Listed individually in the National Register of Historic Places (a listing maintained by the U.S. Department of Interior) or preliminarily determined by the Secretary of the Interior as meeting the requirements for individual listing on the National Register;
B.   Certified or preliminarily determined by the Secretary of the Interior as contributing to the historical significance of a registered historic district or to a district preliminarily determined by the Secretary to qualify as a registered historic district;
C.   Individually listed on a state inventory of historic places and determined as eligible by states with historic preservation programs which have been approved by the Secretary of the Interior; or
D.   Individually listed on a local inventory of historic places and determined as eligible by communities with historic preservation programs that have been certified either:
   1.   By an approved state program as determined by the Secretary of the Interior, or
   2.   Directly by the Secretary of the Interior in states without approved programs.
IRRIGATION OR DRAINAGE CHANNEL:
A man-made or natural channel used to convey or deliver water for irrigation, drainage, or other uses, by irrigation districts, canal companies, lateral associations, drainage districts, or other water delivery entities. Irrigation and drainage channels include man-made canals, ditches, laterals, culverts, flumes, tiled drains, pipes, storage reservoirs, and natural channels (including reservoirs on natural channels), used to convey storage or other sources of water owned or controlled by an irrigation or drainage entity.
 
 
IRRIGATION AND DRAINAGE WORKS:
Man-made structures used to divert, regulate, and measure water from natural channels (streams, rivers, lakes, and springs) and in man-made irrigation and drainage channels. Irrigation and drainage works include diversions or regulation structures, including but not limited to control gates or head gates, check dams or diversion dams, culverts, measuring devices and their housing (including stilling wells and staff gages), flumes, siphons, pumps, pipes, protective structures, energy dissipaters, fish passage structures, and trash screens or trash racks.
LETTER OF MAP CHANGE (LOMC):
A general term used to refer to the several types of revisions and amendments to FIRMs that can be accomplished by letter. They include Letter of Map Amendment (LOMA), Letter of Map Revision (LOMR), Letter of Map Revision based on Fill (LOMR-F), and Conditional Letters of Map Revision (CLOMR).
   A.   Letter Of Map Amendment (LOMA):
An official amendment, by letter, to an effective National Flood Insurance Program (NFIP) map. A LOMA establishes a property's or structure's location in relation to the Special Flood Hazard Area (SFHA). LOMAs are usually issued because a property or structure has been inadvertently mapped as being in the floodplain but is actually on natural high ground above the base flood elevation.
   B.   Letter Of Map Revision (LOMR):
FEMA's modification to an effective Flood Insurance Rate Map (FIRM) or a Flood Boundary and Floodway Map (FBFM) or both. LOMRs are generally based on the implementation of physical measures that affect the hydrologic or hydraulic characteristics of a flooding source and thus result in the modification of the existing regulatory floodway, the effective Base Flood Elevations (BFEs), or the Special Flood Hazard Area (SFHA). The LOMR officially revises the Flood Insurance Rate Map (FIRM) or Flood Boundary and Floodway Map (FBFM), and sometimes the Flood Insurance Study (FIS) report, and when appropriate, includes a description of the modifications. The LOMR is generally accompanied by an annotated copy of the affected portions of the FIRM, FBFM, or FIS report.
 
 
   C.   Letter Of Map Revision Based On Fill (LOMR-F):
FEMA's modification of the Special Flood Hazard Area (SFHA) shown on the Flood Insurance Rate Map (FIRM) based on the placement of fill outside the existing regulatory floodway. The LOMR-F does not change the FIRM, FBFM, or FIS report.
   D.    Conditional Letter Of Map Revision (CLOMR):
A formal review and comment as to whether a proposed flood protection project or other project complies with the minimum NFIP requirements for such projects with respect to delineation of special flood hazard areas. A CLOMR does not revise the effective Flood Insurance Rate Map (FIRM) or Flood Insurance Study (FIS). Upon submission and approval of certified as-built documentation, a Letter of Map Revision (LOMR) may be issued by FEMA to revise the effective FIRM. Building Permits and/or Flood Development Permits cannot be issued based on a CLOMR, because a CLOMR does not change the NFIP map.
LOWEST FLOOR:
The lowest floor of the lowest enclosed area (including basement or subgrade crawl space). An unfinished or flood resistant enclosure, usable solely for parking of vehicles, building access or storage in an area other than a basement area is not considered a building's lowest floor; Provided, that such enclosure is not built so as to render the structure in violation of the applicable non-elevation design requirements of 44 CFR section 60.3 and this article.
MAINTENANCE:
The act of ongoing upkeep of existing structures required to keep channels in a condition adequate to support the conveyance of irrigation and drainage water (this does not include the complete replacement or substantial replacement of an existing structure). Maintenance is further defined as the care or upkeep of channels, works, appurtenances, easements, utility corridors and property; to keep in an existing state, specified state of repair, and efficiency; return to a former condition, elevation, place, and position; to preserve from failure or decline; or repair or renovate so as to return it to its original condition. Maintenance does not include dredging as defined herein.
 
 
MANUFACTURED HOME:
A structure, transportable in one or more sections, built on a permanent chassis and designed to be used with or without a permanent foundation when connected to the required utilities. The term "manufactured home" does not include a “recreational vehicle.”
MANUFACTURED HOME PARK OR SUBDIVISION:
A parcel (or contiguous parcels) of land divided into two or more manufactured home lots for rent or sale.
MARKET VALUE:
The building value, not including the land value and that of any accessory structures or other improvements on the lot. Market value is determined by the tax assessed values, unless revised by an independent certified appraisal (paid for by the property owner).
NEW CONSTRUCTION:
For floodplain management purposes, a structure for which the start of construction commenced on or after the effective date of a floodplain management regulation adopted by a community and includes any subsequent improvements to such structures. Any construction started after April 4, 1984 (entry into the NFHP), and before the effective start date of this floodplain management article is subject to the article in effect at the time the permit was issued, provided the start of construction was within one hundred and eighty (180) days of permit issuance.
NONRESIDENTIAL STRUCTURE:
A building, other than a residential structure or dwelling, or parts thereof, that is open to the public or for private use. The term nonresidential structure includes, but is not limited to: structures used for places of assembly, education, business, maintenance, storage, manufacturing, and government.
OPERATION:
The regular and reoccurring performance of typical work by an irrigation or drainage entity including, but not limited to: the delivery or drainage of water, measurement of water, and adjustment of irrigation and drainage works and all related appurtenances.
 
 
RECREATIONAL VEHICLE:
A vehicle that is:
A.   Built on a single chassis;
B.   Four hundred (400) square feet or less when measured at the largest horizontal projection;
C.   Designed to be self-propelled or permanently towed by a light duty truck; and
D.   Designed primarily not for use as a permanent dwelling but as temporary living quarters for recreational, camping, travel, or seasonal use.
REGULATORY FLOODWAY:
See FLOODWAY.
REPAIR:
The restoration to good or sound conditions of any part of an existing structure, channel, channel bank, or service road for the purpose of maintenance (this does not include the complete replacement or substantial replacement of an existing structure). Repair does not include dredging as defined herein.
RESIDENTIAL STRUCTURE:
A building used as a dwelling for one or more persons. The term residential structure includes, but is not limited to: houses, family daycare homes, group daycare facilities, apartment buildings, lodging homes, dormitories, hotels, motels, hospitals, sanatoriums, and nursing homes. The term residential structure also includes accessory use areas used in conjunction with, and an integral part of, a residential structure.
RIPERIAN AREA:
The land that directly abuts a natural body of water such as a river, lake, stream, creek, or coastal body of water and is within twenty-five feet (25') of the Floodway Boundary.
SPECIAL FLOOD HAZARD AREA (SFHA):
The areas in Ada County in the flood plain subject to a one percent (1%) or greater chance of flooding in any given year. For purposes of these regulations, the term "special flood hazard area" is synonymous in meaning with the phrase "area of special flood hazard." It also includes foothill or hillside tributary floodplain; and other areas determined by the floodplain administrator to be a hazard to public health, safety, and welfare due to flooding.
 
 
START OF CONSTRUCTION:
Includes substantial improvement, and means the date the building permit was issued, provided the actual start of construction, repair, reconstruction, rehabilitation, addition placement, or other improvement was within one hundred and eighty (180) days of the permit date. The actual start means either the first placement of permanent construction of a structure on a site, such as the pouring of slab or footings, the installation of piles, the construction of columns, or any work beyond the stage of excavation; or the placement of a manufactured home on a foundation. Permanent construction does not include land preparation, such as clearing, grading, and filling; nor does it include the installation of streets and/or walkways; nor does it include excavation for a basement, footings, piers, or foundations or the erection of temporary forms; nor does it include the installation on the property of accessory buildings, such as garages or sheds not occupied as dwelling units or not part of the main structure. For a substantial improvement, the actual start of construction means the first alteration of any wall, ceiling, floor, or other structural part of a building, whether or not that alteration affects the external dimensions of the building.
STRUCTURE:
A walled and/or roofed building, including a gas or liquid storage tank that is principally above ground, as well as a manufactured home.
SUBSTANTIAL DAMAGE (SD):
Damage of any origin sustained by a structure whereby the cost of restoring the structure to its before-damaged condition would equal or exceed fifty percent (50%) of its market value before the damage occurred. See definition of "substantial improvement." Substantial damage also means flood-related damage sustained by a structure on two separate occasions during a ten (10) year period for which the cost of repairs at the time of each such flood event, on the average, equals or exceeds twenty-five percent (25%) of the market value of the structure before the damage occurred.
 
 
SUBSTANTIAL IMPROVEMENT (SI):
Any reconstruction, rehabilitation, addition, or other improvement of a structure, the cost of which equals or exceeds fifty percent (50%) of the market value of the structure before the "start of construction" of the improvement. This term includes structures which have incurred "substantial damage," regardless of the actual repair work performed. The term does not, however, include either:
A.   Any project for improvement of a structure to correct existing violations of state or local health, sanitary, or safety code specifications which have been identified by the local code enforcement official and which are the minimum necessary to assure safe living conditions; or
B.   Any alteration of a "historic structure," provided that the alteration will not preclude the structure's continued designation as a "historic structure" and the alteration is approved by variance issued pursuant to this article.
VIOLATION:
The failure of a structure or other development to be fully compliant with this article. A structure or other development without the Finished Construction Elevation Certificate, other certifications, or other evidence of compliance required in 44 CFR sections 60.3(b)(5), (c)(4), (c)(10), (d)(3), (e)(2), (e)(4), or (e)(5) is presumed to be in violation until such time as that documentation is provided. (Ord. 835, 12-3-2014; amd. Ord. 914, 6-10-2020)
 

8-3F-6: PROCESS:

   A.   Approval: Prior to the commencement of any development within any special flood hazard area, the property owner shall obtain approval of a floodplain permit and comply with the applicable general regulations and standards identified in sections 8-3F-7 and 8-3F-8 of this article.
   B.   Application: An application and fees, as set forth in chapter 7, article A of this title, shall be submitted to the development services department on forms provided by the department along with all required information identified on the applicable floodplain checklist. The floodplain administrator will review the request and determine if additional information, certificates, or studies are required prior to commencement of development or manufactured home placement.
   C.   Permit Duration: The approval of a floodplain permit shall be limited to a two (2) year period in which the applicant and/or property owner shall complete the proposed improvements to the satisfaction of the floodplain administrator.
   D.   Certificates And Studies: An applicant and/or owner may be required to submit the following certifications and/or studies with the floodplain application, or subsequent to floodplain application submission:
      1.   Grading Plan: Is considered development and may not take place on property within a special flood hazard area unless a floodplain permit is issued. All grading shall be done so as to minimize impacts within all special flood hazard areas. Floodwater carrying capacity shall not be diminished and adjacent properties shall not be adversely impacted by the proposed improvements. Minor landscape features (cumulative fill or excavation less than ten (10) cubic yards) and at grade driveways, at grade private roads, and at grade parking lots shall be exempt from the LOMA process. Depending on the extent and nature of the grading and landscape features, a FES may be required. Grading plans shall be in conformance with section 8-4A-24 of this title.
      2.   Elevation Certificate (FEMA Form 086-0-33): If the elevation of a structure is required to be certified in accord with specific standards identified in section 8-3F-8 of this article, a completed construction drawings elevation certificate signed by a professional engineer or surveyor licensed in the state of Idaho shall be submitted and approved by the floodplain administrator prior to issuance of any building permit. Once the lowest floor (including basement and/or crawl space) of the proposed structure or substantial improvement is constructed, a completed finished construction elevation certificate signed by a professional engineer or surveyor licensed in the state of Idaho shall be submitted and be approved by the floodplain administrator prior to issuance of a certificate of occupancy and/or prior to final building permit inspection approval.
      3.   Floodproofing Certificate (FEMA Form 086-0-34): If certification is required to demonstrate that a non-residential, accessory or agricultural structure has been floodproofed, in accord with specific standards identified in section 8-3F-8 of this article, documentation demonstrating compliance with the specific standards, shall be submitted with the floodplain application and approved by the floodplain administrator prior to the issuance of a building permit, and/or zoning certificate. A completed floodproofing certificate, prepared by a professional engineer licensed in the state of Idaho, shall be submitted and be approved by the floodplain administrator prior to issuance of a certificate of occupancy or prior to final building permit inspection approval:
         a.   Only accessory or agricultural structures under one thousand (1,000) square feet in size are permitted to be wet-floodproofed.
         b.   Electrical, mechanical and plumbing facilities comply with general regulations identified in section 8-3F-7 of this article.
         c.   If wet-floodproofing to allow floodwater to enter the structure, the enclosed area(s) shall be designed to automatically equalize hydrostatic flood forces on exterior walls by allowing for the entry and exit of floodwaters and complies with the following:
            (1)   A minimum of two (2) openings shall be provided that have a total net area of not less than one square inch for every square foot of enclosed area subject to flooding.
            (2)   The bottom of all openings shall be no more than one foot (1') above the exterior or interior grade or floor immediately below the opening, measured from highest adjacent grade or floor.
            (3)   Openings may be equipped with screens, louvers, or other coverings or devices provided they permit the automatic entry and exit of floodwaters. Openings shall meet the minimum FEMA standards for number (quantity), size and type.
            (4)   Certification shall be submitted that documents the amount of flood opening each flood opening provides.
         d.   If dry-floodproofing to restrict floodwater to enter the structure, the following standards apply:
            (1)   The lowest floor (including basement and/or crawl space), together with attendant electrical, mechanical and plumbing facilities, shall be floodproofed so that below one and a half feet (1.5') above the BFE the structure is watertight with walls substantially impermeable to the passage of water.
            (2)   The proposed structure shall be watertight and shall have structural components capable of resisting hydrostatic and hydrodynamic loads and effects of buoyancy.
            (3)   The proposed design shall be certified by a professional engineer licensed in the state of Idaho and the design and methods of construction shall be in accord with accepted standards of practice for meeting regulations of this section based on their development and/or review of the structural design, specifications, and plans.
      4.   Flood Studies:
         a.   Flood Elevation Study (FES): If required by the specific standards identified in this article, a FES, prepared by a professional engineer licensed in the state of Idaho, must be approved by the floodplain administrator prior to the commencement of any development. The study shall be submitted electronically and in paper form to include:
            (1)   A title;
            (2)   A table of contents;
            (3)   The location and description of the property;
            (4)   A scope of work;
            (5)   Analysis and documentation of methods and procedures to determine the flood elevation and any additional information required by this article;
            (6)   A discussion of the proposed use in the existing floodplain and the surrounding land uses;
            (7)   A discussion of floodplain regulation compliance; and
            (8)   All other items identified on the floodplain checklist as may be applicable and/or as may be required by the floodplain administrator.
         b.   Hydraulic & Hydrology Analysis with No-Rise Certification: If hydraulic and hydrology analysis with no-rise certification is required by any of the specific standards contained in this article, an analysis and certification shall be prepared by a professional engineer licensed in the state of Idaho and shall be submitted with the floodplain application. The documentation shall include a FES, a completed floodplain checklist, and all other supporting technical data which confirms that the proposed development will not result in an increase of the base flood elevation (BFE) for the full cross section of SFHA. The analysis and certification must be approved by the floodplain administrator prior to commencement of any development.
         c.   The floodplain administrator will not require a CLOMR be submitted to FEMA if the Hydraulic and Hydrology Analysis can demonstrate a No-Rise condition when comparing the pre and post development floodway elevations. However, a post construction LOMR must be submitted to document the change to the SFHA.
      5.   Letter Of Map Change (LOMC): If a change or revision of a FIRM is warranted by any of the specific standards identified in this article, the applicant and/or owner shall submit a request to FEMA for an LOMC. The applicant and/or owner may submit the request to FEMA online themselves or retain a professional engineer licensed in the state of Idaho to prepare and submit the amendment and/or revision request to FEMA. A copy of the official amendment and/or revision letter signed by FEMA shall be submitted to the floodplain administrator in accord with the time frames specified in the specific standards contained in this article. (Ord. 835, 12-3-2014; amd. Ord. 914, 6-10-2020)

8-3F-7: GENERAL REGULATIONS:

   A.   The following general regulations are applicable to all development within any special flood hazard area:
      1.   Minimize Flood Damage Potential: Methods and practices shall be used that minimize flood damage potential to all new development and that do not increase the flood damage potential to other properties.
      2.   Flood Resistant Materials: All new development shall use materials and utility equipment resistant to flood damage.
      3.   Anchoring: All new construction and substantial improvements of structures shall be anchored to prevent flotation, collapse, or lateral movement of the structure.
      4.   Drainage: Drainage practices that minimize exposure to flood hazards and that maintain the original or historic drainage patterns to the greatest extent possible shall be used.
      5.   Grading: Grading is considered development and may not take place on property within a special flood hazard area unless a floodplain permit is issued. All grading shall be done so as to minimize impacts within all special flood hazard areas. Floodwater carrying capacity shall not be diminished and adjacent properties shall not be adversely impacted by the proposed improvements. Minor landscape features (cumulative fill or excavation less than then (10) cubic yards) and at grade driveways, at grade private roads, and at grade parking lots shall be exempt from the LOMA process. Depending on the extent and nature of the grading and landscape features, a FES may be required.
      6.   Electrical, Mechanical And Plumbing Equipment/Facilities: Electrical, heating, ventilation, plumbing, and air conditioning equipment and other service facilities shall be elevated to at least one and a half feet (1.5') above the BFE.
      7.   Utility Work:
         a.   All utility work shall use designs, materials, and construction methods that preclude failure due to flooding and assure continued service during flood events.
         b.   All new and replacement water supply systems shall be designed to eliminate infiltration of floodwaters into the system.
         c.   New and replacement sewage treatment infrastructure and sewage collection and disposal systems shall be designed to eliminate infiltration of floodwaters into the systems and discharge from the systems into floodwaters.
      8.   Subdivisions:
         a.   All subdivisions shall be consistent in design and construction with the need to minimize flood damage and shall be reasonably safe from flooding.
         b.   Public utilities and facilities including, but not limited to: sewer, gas, electrical, telephone, and water systems shall be located and constructed to minimize flood damage and certified by a professional engineer licensed in the state of Idaho.
         c.   Adequate drainage shall be provided to reduce exposure to flood damaged. The following must be placed up on the Final Plat:
            (1)   All the SFHA boundary lines must be drawn on the plat.
            (2)   Plat notes designating:
               a.   FEMA FIRM panel(s): #160xxxxxxC, and 160xxxxxxE, etc.;
               b.   FIRM effective date(s): mm/dd/year;
               c.   Flood Zone(s): Zone X, Zone A, Zone AE, A Zone AO, Zone, AH, Zone D, etc.;
               d.   Base Flood Elevation(s): AE       .0 ft., etc.; and
               e.   The following statement: "Flood Zones are subject to change by FEMA and all land within a floodway or floodplain is regulated by section 8-3F of Ada County Code."
               d.   A FES shall be done to determine the BFE for the subdivision if it is located in an A Zone. The applicant shall then submit a LOMR to update the map with the information from the FES.
               e.   If a Conditional Letter of Map Revision (CLOMR) is required, the approval of the CLOMR must be obtained prior to any site improvements and approval of the LOMR must be obtained prior to approval of the Final Plat.
      9.   Watercourse Alteration/Relocation: If a watercourse is to be altered or relocated, the following shall all be submitted by the permit applicant prior to issuance of a floodplain development permit:
         a.   A description of the extent of watercourse alteration or relocation;
         b.   A professional engineer's certified report on the effects of the proposed project on the flood-carrying capacity of the watercourse and the effects to properties located both upstream and downstream. This would include engineering showing:
            (1)   Prior conditions (FIRM Model conditions);
            (2)   Existing conditions; and
            (3)   Post-construction conditions.
         c.   A map showing the location of the proposed watercourse alteration or relocation;
         d.   An Idaho Stream Channel Alteration Permit approval shall be provided by the applicant to the floodplain administrator.
      No alteration or relocation of a watercourse shall be permitted if it diminishes the floodway and floodplain carrying capacity of the watercourse. This includes floodplain and bank restoration projects.
      10.   Substantial Damage: A structure, regardless of whether it was covered by flood insurance, shall be considered to have sustained substantial damage if it meets either of the substantial damage definitions in section 8-3F-5 of this article. Work on structures that have been substantially damaged is considered to be a substantial improvement regardless of the actual repair work performed, and must comply with the applicable general regulations and standards in this section and section 8-3F-8 of this article.
      11.   Accessory And Agricultural Structures: An accessory or agricultural structure as defined in this title may be granted relief from elevation or dry floodproofing requirements if the following standards are met:
         a.   The structure shall be one thousand (1,000) square feet or less in size.
         b.   The structure shall represent a minimal investment, meaning the proposed structure's estimated square foot construction cost as determined by the floodplain administrator shall not be greater than ten percent (10%) of the total market value of the property on which the structure is located;
         c.   The structure is not used for human habitation;
         d.   The structure is constructed of flood resistant materials;
         e.   The structure is constructed and placed on the property to offer the minimum resistance to the flow of floodwaters;
         f.   The structure is firmly anchored to prevent flotation;
         g.   The structure's mechanical and utility equipment, if any, are elevated or floodproofed one and a half feet (1.5') above BFE or two feet (2') above the highest adjacent grade where BFE has not been established; and
         h.   The structure meets the standards of section 8-3F-6D3.
      12.   Roads and Driveways: Driveways, roads, bridges, low-water crossings, and similar means for vehicles or pedestrians to travel, which encroach into the SFHA shall be designed to:
         a.   Be elevated at least one and a half feet (1.5') above the established base flood elevation;
         b.   Allow flood water to pass under so that it does not act as a check dam.
      13.   Riparian Areas: Since riparian areas provide critical flood management and fish and wildlife habitat, the following provisions apply for any development in the SFHA and riparian areas as defined:
         a.   Preservation or restoration of the inherent natural characteristics of the river and creeks within the floodplain;
         b.   Preservation of riparian vegetation and wildlife habitat, if any, along the stream bank and within the required minimum twenty-five foot (25') setback of the floodway boundary or riparian zone;
         c.   No development other than development by a public entity, for public use or required for emergency access shall occur within the twenty-five foot (25') setback of the floodway boundary with the exception of approved stream stabilization work;
         d.   Plan and time frame shall be provided for restoration of riparian vegetation damaged as a result of the work done; and
         e.   New or replacement planting and vegetation shall include plantings that are low growing and have dense root systems for the purpose of stabilizing stream banks and repairing damage previously done to riparian vegetation. Examples of such plantings include: red osier dogwood, common chokecherry, serviceberry, elderberry, river birch, skunk bush sumac, Bebb's willow, Drummond's willow, little wild rose, gooseberry, and honeysuckle.
      14.   Compensatory Storage: New development shall not reduce the effective flood storage volume of the Regulatory Floodplain and SFHA. A development proposal shall provide compensatory storage if grading or other activity eliminates any effective flood storage volume. Compensatory storage shall:
         a.   Provide equivalent volume at equivalent elevations to that being displaced. For this purpose, "equivalent elevation" means having similar relationship to ordinary high water and the best available one hundred (100) year water surface profiles;
         b.   Be hydraulically connected to the source of flooding; and
         c.   Provide compensatory storage in the same construction season as when the displacement of flood storage volume occurs and before the flood season begins.
         d.   The newly created storage area shall be graded and vegetated to allow fish access during flood events without creating fish stranding sites.
      15.   Fences and Walls: Table 8-3F-1 lists the fences and walls allowed or prohibited under this article in the Regulatory Floodplain and SFHA. Allowed fences and walls must also meet the standards found in section 8-5-3-44 of this title.
Table 8-3F-1: USES OF FENCING/WALLS ALLOWED
Fence Or Wall Type
Floodplain
(A, AE)
Floodway
Shallow Sheet Flow Area
(AO)
Fence Or Wall Type
Floodplain
(A, AE)
Floodway
Shallow Sheet Flow Area
(AO)
A
Yes
Yes, unless the purpose is to contain livestock within a corral
Yes
B
Yes
Yes, with limited cross fencing
Yes
C
Case by case review of design required.
D
Yes, if elevated to or above the flood height.1
Case by case review of design required.
Yes, if elevated to or above the flood height.1
E
Yes, if elevated to or above the flood height.1
No
Yes, if elevated to or above the floodheight.1
F
Case by case review of design required.
No
Yes, if elevated to or above the flood height1, or adequate openings provided
A.    "Open" barbed or barbless wire. For floodplain management purposes, barbed and/or barbless wire will be considered "open" if there is no more than one horizontal strand per foot of height1 and no more than one vertical wire or post every six feet (6').
B.   "Open" pipe or rail fencing (e.g. corrals). For floodplain management purposes, pipe/rail fencing will be considered open if the horizontal pipes/rails occupy less than ten percent (10%) of the area fenced and posts are spaced no closer than eight feet (8').
C.   Collapsible fencing.
D.   Other wire, pipe, or rail type fencing (e.g. field fence, chicken wire, etc.) which does not meet the "open" requirements described above.
E.   Chain link fencing.
F.   Continuous wood or vinyl fencing or masonry walls.
 
Note:
    1.   Individual horizontal wire strands can be placed below the flood height provided 1they are spaced no closer than six inches (6") apart. Individual vertical wire strands can be placed below the flood height provided they are spaced no closer than six feet (6') apart. For wire, pipe, or rail fencing that does not meet the "open" requirements, and for wood or masonry walls/fences, the bottom of the wall/fence must be elevated to or above the elevation of the water during the one hundred (100) year flood event. Wood and masonry fencing/walls do not need to be elevated if they provide enough openings at their bases to allow the free flow of floodwaters without increasing the depth of water at all.
      16.   Functionally Dependent Use: Functionally dependent uses shall follow the standards of this article, provided that the use does not cause a rise in the one hundred (100) year flood level (BFE) within a regulatory floodway, and the structure and other development must be protected by methods that minimize flood damages.
      17.   General Irrigation Floodplain Development (GIFD) Permit: There are three (3) categories of GIFD permits as outlined by Idaho Department of Water Resources (IDWR). The floodplain administrator will determine which category the proposed work falls under based on the following criteria:
         a.   Non-development activities requiring no permit: Consistent with Idaho Code sections 46-1021 and 46-1022, operation, cleaning, maintenance or repair of any ditch, canal, lateral, drain, diversion structure or other irrigation or drainage works, do not constitute development under Idaho law and therefore do not require either a GIFD permit or an floodplain permit. Examples of activities and projects that do not require floodplain permitting.
            (1)   General farming, pasture, horticultural and forestry activities that do not involve earthwork that permanently alter the topography or any clearing/grubbing of an area.
            (2)   Grading of existing roads or easements along or near channels and within the SFHA, when the grading does not add fill within the regulatory floodway or SFHA.
            (3)   Maintenance of underground utilities (work must not permanently alter topography).
            (4)   In-kind replacement of existing piers or posts supporting a conforming deck.
            (5)   Activities associated with land-surface construction stormwater Best Management Practices ("BMP"), when the measures are temporary in nature (i.e. not in place for longer than one hundred and eighty (180) days) or do not increase the BFE. Examples of stormwater BMP activities that do not require a permit include the following: dust control; materials and equipment covers; mulching; geotextile fabrics; matting; bio-filter bags; fiber rolls; silt fences; vegetative buffer strips; temporary swales; and temporary berms.
         b.   GIFD permit eligible activities: Low-to-no impact irrigation and drainage development activities or uses in the floodplain which inherently do not increase the BFE. GIFD permits apply to all qualifying activities within the spatial extents of an irrigation delivery or drainage system and within the regulatory floodway or SFHA, over a predetermined period of time, not to exceed five years.
            (1)   Process for GFID approval:
               a.   Initial consultation, in-person meeting between the floodplain administrator and the irrigation entity.
               b.   Submittal by the irrigation entity of the following materials prior to consultation visit:
                  i.   Service area map with delineated activities;
                  ii.   A timeline identifying the sequence and timing that proposed activities will occur (not to exceed five years); and
                  iii.   Supporting documentation, as needed.
         c.   The floodplain administrator shall timely review submitted material and ask for additional documentation as needed.
         d.   The floodplain administrator shall timely review submitted material and identify any activities that require an individual permit.
         e.   The floodplain administrator shall issue a GIFD permit.
         f.   The irrigation entity shall notify the floodplain administrator when changes to activities permitted under a GIFD are anticipated.
      (2)   Examples of activities that require a GFID:
         a.   Dredging and grading of irrigation and drainage channels, when the fill from dredging or grading is not deposited on the banks of channels or anywhere within the regulatory floodway or SFHA for longer than ten (10) days.
         b.   Seasonal grading within natural stream channels to check or direct water into irrigation facilities (i.e. earthen "push- up dams" and "wing dams").
         c.   Deposition of fill within the SFHA for less than ten (10) days. After then (10) days, deposited fill must be removed from the SFHA, or graded and compacted to existing grade within ± 0.2 feet. Deposition of fill includes deposition of material resulting from grading or excavating irrigation or drainage channels. Deposition of fill within the mapped floodway requires an individual permit.
         d.   Construction of new underground utilities that do not permanently alter the existing grade elevations by ± 0.5 feet. Excess soil from new pipes larger than two feet (2') in diameter must be disposed of outside the regulatory floodway and SFHA.
         e.   In-kind replacement of irrigation and drainage works or components including but not limited to control gates or head gates, measuring devices and their housing structures/stilling wells, culverts, pumps, pipes, flumes, siphons and similar works. GIFD permits cannot authorize the In-kind replacement of dams or bridge structures.
         f.   New driveways, trails, sidewalks, roads and streets constructed completely at-or-below existing grade.
         g.   Armoring, stabilizing, securing, or in-kind replacement of existing infrastructure within the channel banks (such as bridge piers, sewer/utility supports and storm water/sewer drainage outfalls/headwalls) when the dimensions (bank slopes, channel location, channel elevation) of the channel are not altered. This should not involve replacement with larger or additional above ground infrastructure.
   B.   Development activities requiring an floodplain development permit: A floodplain development permit is required for all other permitted activities and projects within the regulatory floodway and SFHA that do not meet the requirements of a GIFD permit. (Ord. 835, 12-3-2014; amd. Ord. 848, 12-9-2015; amd. Ord. 914, 6-10-2020)

8-3F-8-1: LAND USE RESTRICTIONS:

   A.   AE, AH, AO, A, and D Zones and the Regulatory Floodway: Despite any other regulations of this title, Critical Facilities and the following uses, including any new construction or substantial improvements to such uses, are prohibited in the regulatory floodway, AE, AH, AO, A, or D zone where the base flood elevations have been determined or estimated:
   Explosive manufacturing.
   Flammable substance storage.
   Foster home, group.
   Gasoline, diesel, or alternative fuel sales.
   Junkyard or automobile wrecking yard.
   Manufacture and/or storage of materials that are buoyant, flammable, toxic, radioactive or explosive or may present a hazard to public health or safety in time of flooding.
   Manufacture of electronic or electrical products.
   Manufacture or processing of hazardous chemicals or gases.
   Manufactured home storage.
   Portable classroom.
   Sanitary landfill, restricted.
   School, vocational or trade.
   Soil or water remediation.
   Tannery.
   Vehicle impound yard.
   Stormwater Facilities Sanitary Sewer Facilities. (Ord. 835, 12-3-2014; Ord. 914, 6-10-2020)

8-3F-8-2: A AND D ZONES:

   A.   General Standards:
      1.   All development within an A zone or a D zone shall: a) be subject to the procedural requirements of sections 8-3F-6 and 8-3F-7 of this article, as applicable; and b) require determination of the base flood elevation (except for accessory or agricultural structures that meet the requirements of section 8-3F-7A11 of this article).
      2.   Drainage: Adequate drainage paths around structures on slopes shall be provided in an A zone or a D zone to guide floodwaters around and away from proposed structures.
      3.   Grading: Any site work in excess of ten (10) cubic yards of cut or fill will require a detailed grading permit. All grading shall be done so as to minimize impacts and maintain compensatory storage within all special flood hazard areas. Depending on the extent and nature of the grading, a FES may be required along with an LOMC.
   B.   New Development And/Or Substantial Improvement: All new development, and/or substantial improvement of both residential and nonresidential structures located within an A zone or a D zone, except those granted relief per subsection 8-3F-7 of this article, shall comply with the following:
      1.   Base Flood Elevation (BFE) Establishment: If BFE data has not already been established within an A zone or a D zone, BFE data shall be established by the following methods:
         a.   The floodplain administrator may require applicants to submit information including, but not limited to, historical data, high water marks, photographs of past flooding and/or any other available data. The applicant shall propose a BFE based on the available data. The floodplain administrator shall concur with the proposed BFE or provide justification or additional information to support a different BFE. Prior to issuance of any building permit, an LOMC shall be prepared as set forth in subsection 8-3F-6D4 of this article, submitted to and approved by FEMA.
         b.   If the flood data sources in subsection B.1.a of this section are not available to establish a BFE to the satisfaction of the floodplain administrator, an FES as set forth in subsection 8-3F-6D4 of this article, shall be submitted to and approved by the floodplain administrator prior to commencement of any development. Prior to issuance of any building permit, an LOMC shall be prepared as set forth in subsection 8-3F-6D5 of this article, submitted to and approved by FEMA.
      2.   Residential Structure: Once BFE data is established, new construction and/or substantial improvements of a residential structure shall comply with the applicable standards of section 8-3F-8-3 or 8-3F-8-4 of this article.
      3.   Nonresidential Structure: Once BFE data is established, new construction and/or substantial improvement of any commercial, industrial, or other nonresidential structure shall comply with the applicable standards of section 8-3F-8-3 or 8-3F-8-4 of this article.
   C.   Subdivision And/Or Manufactured Home Park: An FES, as set forth in subsections 8-3F-6D4 and 8-3F-7A8 of this article, shall be submitted concurrently with an application for a subdivision or manufactured home park within an A zone or a D zone. The applicant and/or owner shall submit a signed copy of an LOMC prior to approval of the final plat or prior to issuance of any building permit within a subdivision or manufactured home park.
   D.   Manufactured: A manufactured home placed within an A zone or a D zone shall comply with the applicable standards of section 8-3F-8-3 or 8-3F-8-4 of this article.
   E.   Recreational Vehicle: Any recreational vehicle placed on property within an A zone or a D zone shall meet the following additional standards:
      1.   The recreational vehicle shall be on site for fewer than one hundred and eighty (180) consecutive days; and
      2.   The recreational vehicle shall be fully licensed and ready for highway use, be on its wheels or jacking system, be attached to the site only by quick disconnect type utilities and security devices, and have no permanently attached additions; or
      3.   The recreational vehicle shall meet the anchoring requirements set forth in subsection D of this section.
   F.   Pit, Mine Or Quarry: Approval of an FES as set forth in subsection 8-3F-6D4 of this article, shall be required as a condition of approval for any proposed pit, mine or quarry. The FES shall demonstrate that the extraction site will be designed to avoid river avulsion. The FES must be approved prior to commencement of the use or breaking ground. Gravel mining operations or excavations are not permitted within one hundred feet (100') of the top of river bank regardless of floodway or floodplain designation. Material stockpiles and permanently installed structures shall not be located within the regulatory floodway. (Ord. 835, 12-3-2014; amd. Ord. 848, 12-9-2015; Ord. 914, 6-10-2020)
 

8-3F-8-3: AE AND AH ZONES:

   A.   General Standards:
      1.   Drainage: Adequate drainage paths around structures on slopes shall be provided in an AE zone or an AH zone to guide floodwaters around and away from proposed structures.
      2.   Grading: Any site work in excess of ten (10) cubic yards of cut or fill will require a detailed grading permit. All grading shall be done so as to minimize impacts and maintain compensatory storage within all special flood hazard areas. Depending on the extent and nature of the grading, a FES may be required along with an LOMC.
   B.   Residential Structure: All new construction and/or substantial improvement of residential structures proposed within an AE zone or an AH zone must comply with the following standards:
      1.   Lowest Floor Elevation: Residential structures shall have the lowest floor (including basement and/or crawl space) elevated to at least one and a half feet (1.5') above BFE, confirmed by elevation certificates as set forth in subsection 8-3F-6D2 of this article.
   C.   Nonresidential Structure: All new construction and/or substantial improvement of any commercial, industrial, or other nonresidential (accessory or agricultural) structure within an AE or an AH zone shall either be elevated or floodproofed in compliance with the following standards:
      1.   Elevation: If the structure is not going to be floodproofed, elevation certificates are required as set forth in subsection 8-3F-6D2 of this article that certify compliance with the following standards:
         a.   The lowest floor (including basement and/or crawl space) shall be elevated to at least one and a half feet (1.5') above BFE.
      2.   Floodproofing: The structure shall meet the floodproofing standards of subsection 8-3F-6D3.
   D.   Subdivision And/Or Manufactured Home Park: An FES, as detailed in subsections 8-3F-6D4 and 8-3F-7A8 of this article, shall be submitted concurrently with an application for a subdivision or manufactured home park within an AE zone or an AH zone. The applicant and/or owner shall submit a signed copy of an LOMC prior to approval of the final plat or prior to issuance of any building permit within a subdivision or manufactured home park.
   E.   Manufactured Home: A manufactured home placed or substantially improved within an AH zone or an AE zone requires elevation certificates as set forth in subsection 8-3F-6D2 of this article that demonstrate compliance with the following standards:
      1.   A manufactured home shall be installed using methods and practices which minimize flood damage. Said methods and practices shall include the anchoring of the home to resist flotation, collapse, or lateral movements. Methods of anchoring may include, but are not to be limited to, use of over the top or frame ties to ground anchors in addition to any applicable anchoring requirements for resisting wind forces. Other anchoring techniques are described in the FEMA publication "Manufactured Home Installation In Flood Hazard Areas"; and
      2.   A manufactured home shall be elevated so the lowest floor (including basement and/or crawl space) is elevated to at least one and a half feet (1.5') above BFE confirmed by an elevation certificate.
   F.   Recreational Vehicle: Any recreational vehicle placed on property within an AE zone or an AH zone shall meet the following additional standards:
      1.   The recreational vehicle shall be on site for fewer than one hundred and eighty (180) consecutive days; and
      2.   The recreational vehicle shall be fully licensed and ready for highway use, be on its wheels or jacking system, be attached to the site only by quick disconnect type utilities and security devices, and have no permanently attached additions; or
      3.   The recreational vehicle shall meet the elevation and anchoring requirements set forth in subsection E.1 of this section.
   G.   Pit, Mine Or Quarry: Approval of an FES as set forth in subsection 8-3F-6D4a of this article, shall be required as a condition of approval for any proposed pit, mine or quarry. The FES shall demonstrate that the extraction site will be designed to avoid river avulsion. The FES must be approved prior to commencement of the use or breaking ground. Gravel mining operations or excavations are not permitted within one hundred feet (100') of the top of river bank regardless of floodway or floodplain designation. Material stockpiles and permanently installed structures shall not be located within the regulatory floodway. (Ord. 835, 12-3-2014; amd. Ord. 848, 12-9-2015; Ord. 914, 6-10-2020)

8-3F-8-4: AO ZONE:

An area within the flood fringe, shown on the flood insurance rate map (FIRM) as an AO or an AH zone, susceptible to shallow flooding with depths range from one (1') to three feet (3'). See - AREA OF SHALLOW FLOODING or AO ZONE.
   A.   General Standards - AO Zone:
      1.   Drainage: Adequate drainage paths around structures on slopes shall be provided in an AO zone to guide floodwaters around and away from proposed structures.
      2.   Grading: Any site work in excess of ten (10) cubic yards of cut or fill will require a detailed grading permit. All grading shall be done so as to minimize impacts and maintain compensatory storage within all special flood hazard areas. Depending on the extent and nature of the grading, an FES may be required along with an LOMC.
      3.   Hazardous Velocities: Where hazardous velocities are noted on the FIRM, proper construction techniques and methods shall be used to mitigate the effects of the velocities.
   B.   Residential Structure: All new construction and/or substantial improvement of a residential structure proposed within an AO zone requires elevation certificates as set forth in subsection 8-3F-6D2 of this article that certify compliance with the following standards:
      1.   New construction and substantial improvements of residential structures within AO zones shall have the lowest floor (including basement and/or crawl space) elevated above the highest adjacent grade of the building site by a height equal to the depth number specified on the FIRM plus one foot (1'), or at least two feet (2'), if no depth number is specified. Where appropriate, such structures shall be elevated above the crown of the nearest roadway by a height equal to the depth number specified on the FIRM plus one foot (1').
   C.   Nonresidential Structure: All new construction and/or substantial improvement of any commercial, industrial, or other nonresidential (accessory or agricultural) structure within an AO zone shall either be elevated or floodproofed in compliance with the following standards:
      1.   Elevation: If the structure is not going to be elevated, elevation certificates are required as set forth in subsection 8-3F-6D2 of this article that certify compliance with the following standards:
         a.   The lowest floor (including basement and/or crawl space) shall be elevated above the highest adjacent grade of the building site by a height equal to the depth number specified on the FIRM plus one foot (1'), or at least two feet (2'), if no depth number is specified.
      2.   Floodproofing: If the structure is not going to be floodproofed, a floodproof certificate is required as set forth in subsection 8-3F-6D3 of this article that certify compliance with the following standards:
         a.   For Dry-Floodproofing: The lowest floor (including basement and/or crawl space), together with attendant electrical, mechanical and plumbing facilities, shall be completely floodproofed to or above a height equal to the depth number specified on the FIRM plus one foot (1') so that any space below that level is watertight, with walls substantially impermeable to the passage of water.
         b.   For Wet-Floodproofing: The electrical, mechanical and plumbing facilities shall be completely floodproofed to or above a height equal to the depth number specified on the FIRM plus one foot (1').
   D.   Subdivision And/Or Manufactured Home Park: An FES, as set forth in subsection 8-3F-6D4 and 8-3F-7A8 of this article, shall be submitted concurrently with an application for a subdivision or manufactured home park within an AO zone. The applicant and/or owner shall submit a signed copy of an LOMC prior to approval of the final plat or prior to issuance of any building permit within a subdivision or manufactured home park.
   E.   Manufactured Home: A manufactured home placed or substantially improved within an AO zone requires elevation certificates as set forth in subsection 8-3F-6D2 of this article that demonstrate compliance with the following standards:
      1.   A manufactured home shall be installed using methods and practices which minimize flood damage. Said methods and practices shall include the anchoring of the home to resist flotation, collapse, or lateral movements. Methods of anchoring may include, but are not to be limited to, use of over the top or frame ties to ground anchors in addition to any applicable anchoring requirements for resisting wind forces. Other anchoring techniques are described in the FEMA publication "Manufactured Home Installation In Flood Hazard Areas"; and
      2.   A manufactured home shall be elevated so the lowest floor (including basement and/or crawl space) is elevated above the highest adjacent grade of the building site by a height equal to the depth number specified on the FIRM plus one foot (1'), or at least two feet (2'), if no depth number is specified, as confirmed by an elevation certificate as set forth in subsection 8-3F-6D2 of this article.
   F.   Pit, Mine Or Quarry: Approval of an FES as set forth in subsection 8-3F-6D4a of this article, shall be required as a condition of approval for a pit, mine or quarry. The FES shall demonstrate that the extraction site will be designed to avoid river avulsion. The FES must be approved prior to commencement of the use or breaking ground. Gravel mining operations or excavations are not permitted within one hundred feet (100') of the top of river bank regardless of floodway or floodplain designation. Material stockpiles and permanently installed structures shall not be located within the regulatory floodway. (Ord. 835, 12-3-2014; Ord. 914, 6-10-2020)

8-3F-8-5: REGULATORY FLOODWAY:

Standards: The following standards shall apply to all uses and development within the regulatory floodway:
   A.   New Development Or Substantial Improvements: New development or substantial improvements are not allowed within a regulatory floodway. Provided, however, if encroachment is unavoidable, the new construction or substantial improvement of residential, commercial, or industrial uses are not allowed in the regulatory floodway. If site work encroachment is unavoidable, a Hydraulic & Hydrology Analysis with No-Rise Certification as detailed in subsection 8-3F-6D4b of this article shall be provided by a professional engineer licensed in the state of Idaho demonstrating that the encroachment will not result in any increase in base flood levels (BFE) during the occurrence of the base flood discharge.
   B.   Letter Of Map Change (LOMC): If a change or revision of a FIRM is warranted by any of the specific standards identified in this article, the applicant and/or owner shall submit a request to FEMA for an LOMC. The applicant and/or owner may submit the request to FEMA online themselves or retain a professional engineer licensed in the state of Idaho to prepare and submit the amendment and/or revision request to FEMA. A copy of the official amendment and/or revision letter signed by FEMA shall be submitted to the floodplain administrator prior to issuance of a building permit.
   C.   Hydraulic and Hydrology Analysis with No-Rise Certification: If no rise certification for site work encroachment is provided and approved, pursuant to subsection A.1 of this section, all work shall comply with the applicable standards for uses in the flood fringe detailed in sections 8-3F-8-2 through 8-3F-8-4, inclusive, of this article.
   D.   Uses In A Foothill Or Hillside Tributary: In addition to the standards above, uses proposed in a foothill or other hillside tributary floodplain as determined by the Ada County engineer shall also meet the standards set forth in section 8-3F-8-6 of this article.
   E.   Pit, Mine Or Quarry: Pit, mine or quarry operations are prohibited within the floodway. (Ord. 835, 12-3-2014; Ord. 914, 6-10-2020)

8-3F-8-6: FOOTHILL OR HILLSIDE TRIBUTARY FLOODPLAIN:

   A.   Development on properties that include any portion of a foothill or hillside tributary floodplain shall provide for channel stabilization and bank stabilization or be set back from the edge of the floodplain sufficient to protect the use and floodplain from flood related erosion. Such measures shall be certified by a professional engineer licensed in the state of Idaho to be effective for the flood flows and velocities anticipated at the site as determined through the completion of an FES as set forth in subsection 8-3F-6D4 of this article.
   B.   Transportation routes shall not be allowed within areas determined to be floodways except as necessary to cross the floodway where no reasonable alternative exists. Bridges that cross foothill or hillside tributary floodplains shall have all horizontal bridge support members elevated to at least one foot (1') above BFE, and all supporting members shall be designed to withstand the flows and velocities of the base flood. If culverts are used, the roadway surface must be one foot (1') above the determined BFE.
   C.   Check dams shall be designed and certified by a professional engineer licensed in the state of Idaho and reviewed and approved by the Ada County engineer to ensure the safety of persons and property that could be affected by the construction of the check dam. An FES, as set forth in subsection 8-3F-6D4 of this article, shall be completed by a professional engineer licensed in the state of Idaho on behalf of the applicant/owner, submitted to and approved by the Ada County engineer as part of the floodplain application. (Ord. 835, 12-3-2014; Ord. 914, 6-10-2020)

8-3F-9: REQUIRED FINDING:

In order to approve the application, the decision-making body shall find that the proposed development including, but not limited to, new construction, placement of manufactured home or substantial improvement, meets the general regulations and standards as set forth in this article. (Ord. 835, 12-3-2014; Ord. 914, 6-10-2020)

8-3F-10: APPEALS:

   A.   A.   Appeals of determinations made by the floodplain administrator shall be heard by the board and shall comply with procedures of section 8-7-7 of this title.
   B.   Appeals which allege there is an error in any requirement, decision, or determination made by the floodplain administrator in the enforcement or administration of this article, shall be supported by technical and scientific evidence which shall include, but is not limited to, the following items:
      1.   A copy of the recorded plat map showing the property or, if there is no recorded plat map, a scaled vicinity map showing the property.
      2.   A topographic map showing ground elevation contours and a line representing the area subject to inundation by the base flood.
      3.   Certification by a professional engineer licensed in the state of Idaho of the elevation of the lowest floor (including basement and/or crawl space), the elevation of any fill, the date on which the fill was placed, and the elevation to which any structure has been floodproofed.
   C.   The board shall base their decision on an appeal on the specific and technical evidence in the record. (Ord. 835, 12-3-2014; Ord. 914, 6-10-2020)

8-3F-11: VARIANCES TO FLOOD INSURANCE PROGRAM STANDARDS:

   A.   Purpose: The purpose of this section is to provide a relief from national flood insurance program standards as they pertain to a physical piece of property and at the same time not jeopardizing sufficient flood protection.
   B.   Applicability: Variances may be issued consistent with the FEMA variance and exception regulations as set forth in 44 CFR chapter 1, section 60.6.
   C.   Process:
      1.   An application and fees, as set forth in section 8-7-4 of this title, shall be submitted to the director on forms provided by the development services department.
      2.   The board shall consider all technical evaluations, all relevant factors, standards specified in other sections of this article including, but not limited to, the expected heights, velocity, duration, rate of rise, and sediment transport of the floodwaters if applicable, expected at the site.
      3.   The board may attach such conditions to the granting of variances as it deems necessary to further the purposes of this article.
      4.   The board shall apply the findings listed in subsection D of this section to review the variance.
      5.   Any applicant to whom a variance is granted shall be given written notice that:
         (a)   The issuance of the variance to construct a structure below the base flood level will result in increased premium rates for flood insurance up to amounts as high as twenty five dollars ($25.00) for one hundred dollars ($100.00) of insurance coverage; and
         (b)   Such construction below the base flood level increases the risk to life and property.
   D.   Required Variance Findings:
      1.   The proposed use adequately mitigates any danger that materials may be swept onto other properties to the injury of others;
      2.   The proposed use adequately mitigates the danger to life and property due to flooding or erosion damage;
      3.   The proposed use minimizes the susceptibility of the proposed facility and its contents to flood damage and the effect of such damage on the individual owner;
      4.   The proposed use provides an important service to Ada County;
      5.   The proposed use shall not cause extraordinary public expense in providing governmental services during post-flood conditions including maintenance and repair of public utilities and facilities such as sewer, gas, electrical, water systems, and streets and bridges;
      6.   The proposed use shall not have available alternative locations that are not subject to flooding or erosion damage;
      7.   The proposed use provides for safe access to the property in times of flood for ordinary and emergency vehicles;
      8.   The variance shall not conflict with existing local laws or articles;
      9.   The variance is the minimum necessary, considering the flood hazard, to afford relief;
      10.   The variance shall not result in increased flood heights during the base flood discharge;
      11.   The variance shall not cause fraud on or victimization of the public; and
      12.   Failure to grant the variance would result in exceptional hardship to the applicant.
   E.   Required Findings For Historic Structures: In addition to the findings in subsection D of this section, the following findings are required for variances for historic structures:
      1.   The proposed repair or rehabilitation of the structure will not preclude the structure's continued designation as a historic structure; and
      2.   The variance is the minimum necessary to preserve the historic character and design of the structure. (Ord. 835, 12-3-2014; Ord. 914, 6-10-2020)

8-3G-1: PURPOSE:

The purpose of this article is to protect and enhance the important environmental features of the Boise River, and to protect fish, wildlife, and recreation resources consistent with the purpose of the "Local Land Use Planning Act", Idaho Code section 67-6501 et seq., as amended. (Ord. 389, 6-14-2000)

8-3G-2: APPLICABILITY:

The requirements of this article shall be applicable to those lands situated between the Boise River and a line one hundred feet (100') outside of, and parallel to, the boundary of the Boise River "floodway" as defined in article F of this chapter. All terms are as defined in section 8-3F-5 of this chapter. (Ord. 389, 6-14-2000)

8-3G-3: STANDARDS:

   A.   Structures and fences shall have a setback of one hundred feet (100') from the floodway boundary.
   B.   Development shall minimize the disturbance of natural vegetation within the Boise River greenway.
   C.   Development within the Boise River greenway shall incorporate landscaping in all unpaved areas where the natural vegetation has been disturbed or removed.
   D.   In addition to the requirements of article F of this chapter, and of section 8-4F-7 of this title, parking areas shall have a minimum five foot (5') screen between the parking area and the Boise River. Screening materials shall be as set forth in section 8-4F-5 of this title.
   E.   Additional screening of uses as viewed from the Boise River greenway may be required consistent with the purpose of this article. (Ord. 389, 6-14-2000)

8-3H-1: PURPOSE:

   A.   To provide the maximum in public safety and welfare in the development and design of building sites, roadways, and other service amenities;
   B.   To preserve and enhance the hillside landscape by encouraging the maximum retention of natural features, such as drainage swales, streams, slopes, ridgelines, crests of hills, rock outcroppings, vistas, and natural formations;
   C.   To provide safe ingress and egress for vehicular, bicycle, and pedestrian traffic to and within the hillside areas, while at the same time minimizing the scarring effects of hillside development; and
   D.   To use to the fullest extent the current understanding of the planning, design, and engineering professions and the natural sciences including botany, biology, ecology, soils and geology, to mitigate potential hazards, and to enhance the existing and future appearance and resources of the hillsides. (Ord. 389, 6-14-2000)

8-3H-2: APPLICABILITY:

   A.   Trail development that does not exceed five feet (5') in width and that does not exceed three feet (3') cut or three feet (3') fill shall be exempt from the provisions of this article.
   B.   Except for as allowed in subsection A of this section, the regulations of this article shall apply to any grading, filling, clearing, or excavation of any kind where either of the following is present:
      1.   Slopes that exceed fifteen percent (15%); or
      2.   Adverse conditions associated with slope stability, erosion, or sedimentation are present, as determined by the county engineer.
   C.   The county engineer shall determine when a watercourse shall be classified as major or minor as used in this article. (Ord. 389, 6-14-2000; amd. Ord. 426, 9-26-2001; amd. Ord. 766, 12-8-2010)

8-3H-3: APPLICATION REQUIREMENTS:

   A.   Application: An application, as set forth in chapter 7, article A of this title, shall be submitted to the director on forms provided by the development services department.
   B.   Preliminary Grading Plan: The preliminary grading plan shall be designed to ensure that the properties within the development are able to conform to the requirements of a final grading plan as set forth in section 8-3H-5 of this article. The following items shall be included in the preliminary grading plan:
      1.   Contour lines at five foot (5') intervals;
      2.   The location of all proposed or existing structures and roads;
      3.   Any areas of cut or fill;
      4.   Any areas with characteristics listed in subsection 8-3H-5B of this article;
      5.   A narrative indicating how the proposed design complies with the purpose statement of the hillside overlay district.
   C.   Slope Stabilization And Revegetation Plan And Report: A licensed landscape design professional shall prepare the slope stabilization and revegetation plan. The report shall include a complete description of the existing soils, existing vegetation, the vegetation to be removed and the method of disposal, the vegetation to be planted, soils amendments and pH adjustments, and slope stabilization measures to be implemented. The plan shall include an analysis of the environmental effects of such operations including the effects on slope stability, soil erosion, water quality, and fish and wildlife.
   D.   Engineering Hydrology Report: A professional engineer registered in the state of Idaho shall complete an engineering hydrology investigation and report. This individual should be experienced and knowledgeable in the science of hydrology and in the techniques of hydrologic investigation. This report shall include the following information:
      1.   An adequate description of the hydrology of the site, conclusions on the proposed development, and opinions and recommendations covering the adequacy of sites to be developed. The report shall include results of field investigations of the site, unless existing information is determined by the county engineer to be sufficient to satisfy the purpose of this article.
      2.   Flood frequency curves shall be provided for the area proposed for development.
   E.   Soils Engineering Report: Any area proposed for development shall be investigated to determine the soil characteristics. This report shall include the following information:
      1.   Data regarding the nature, distribution, strength, pH, and nutrients of the soils, conclusions and recommendations for grading procedures, design criteria for corrective measures, and opinion and recommendations covering the adequacy of sites to be developed. The report shall include results of field investigations of the site, unless existing information is determined by the county engineer to be sufficient to satisfy the purpose of this article.
      2.   The investigation and report shall be completed by a professional engineer registered in the state. This individual should be experienced and knowledgeable in the practice of soils mechanics.
      3.   Recommendations included in the report shall be incorporated into the design plan and specifications.
   F.   Engineering Geology Report: Any area proposed for development shall be investigated to determine its geological characteristics. This report shall include the following information:
      1.   A description of the geology of the site, conclusions and recommendations regarding the effect of geologic conditions on the proposed development, and the opinions and recommendations covering the adequacy of sites to be developed. The report shall include results of field investigations of the site, unless existing information is determined by the county engineer to be sufficient to satisfy the purpose of this article.
      2.   The investigation and report shall be completed by either a professional geologist registered in the state or by a professional engineer registered in the state. This individual should be experienced and knowledgeable in the principles and practices of engineering geology.
      3.   Any area in which the investigation indicates geologic hazards shall not be developed unless the project engineer can demonstrate conclusively to the county engineer, based on the required engineering reports, that these hazards can be overcome in such a manner as to prevent hazard to life or limb, hazard to property, adverse effects on the safety, use or stability of a public way or waterway, and adverse impacts on the natural environment.
      4.   Recommendations included in the report shall be incorporated into the design plan and specifications.
   G.   Visual Impact Report: A visual impact report shall be prepared by a licensed design professional and shall be submitted with the development application. The report shall include the following information:
      1.   The view from key vantage points along public roadways or public viewing areas that depict the existing view (prior to development) and the proposed view (after development).
      2.   The proposed screening methods which shall include, but not be limited to: architectural design, designated building envelopes, height restrictions, landscaping, fencing, construction materials, and colors.
      3.   The existing vegetation and the proposed method of preserving and/or replacing such vegetation.
      4.   A statement detailing how the proposed development or subdivision minimizes grading through careful site and roadway design.
   H.   Other Pertinent Data: Any other pertinent data deemed necessary by the engineer of record or by the director, after consulting with the engineer of record, to satisfy the stated purpose of this article and that is reasonably related to the health, safety, and welfare of the general public and persons who might purchase the property being developed. (Ord. 389, 6-14-2000; amd. Ord. 426, 9-26-2001; amd. Ord. 490, 4-9-2003; amd. Ord. 766, 12-8-2010)

8-3H-4: PROCESS:

   A.   The preliminary grading plan, prepared by the engineer of record, shall be submitted with the development application. The director shall forward the preliminary grading plan and other documents required by this article to the county engineer for review and recommendation.
   B.   Upon review of the study, the county engineer shall forward a recommendation on the grading plan to the director. The director shall apply the standards listed in section 8-3H-5 of this article and the required findings listed in section 8-3H-6 of this article to determine whether or not to approve, approve with conditions, or deny the preliminary grading plan.
   C.   No grading, filling, clearing, or excavation of any kind shall be initiated until the preliminary grading plan is approved by the director, and the development has received final approval by the decision making body. For subdivisions, board approval of the preliminary plat is deemed the final approval.
   D.   When required by the director, special inspections and special testing shall be performed to verify conformance with this article. The cost of such special inspections and special testing shall be borne by the applicant. (Ord. 389, 6-14-2000; amd. Ord. 426, 9-26-2001; amd. Ord. 766, 12-8-2010)

8-3H-5: STANDARDS:

   A.   General Standards:
      1.   Construction shall be scheduled to minimize soil disturbance between December 1 and April 15.
      2.   The county engineer may require the grading operation and/or project schedule be modified if delays occur which result in weather generated problems not anticipated at the time approval was granted.
      3.   All development shall take into account land use planning, soil mechanics, engineering geology, hydrology, civil engineering, the environment, architectural and landscape design, and related disciplines as applied to hillside areas.
   B.   Development Of Special Hazard Areas: Any area that presents one or more of the following limiting factors shall not be permitted to develop unless the engineer of record can demonstrate to the county engineer, based on the required engineering reports, that these limitations can be overcome in such a manner as to prevent hazard to life, hazard to property, adverse effects on the safety, use or stability of a public way or drainage channel, and adverse impact on the natural environment:
      1.   Landslide areas or scarps, or areas of active landslides.
      2.   Lines of active faults.
      3.   Soils with a high shrinkage-expansion potential and hydrocompactible soils.
      4.   Soils with unified classification of ML, CL, OL, MH, CH, OH, and Pt as listed in ASTM.
      5.   Natural slopes greater than twenty five percent (25%).
      6.   Water table within six feet (6') of the surface at any time of the year.
      7.   Any area of hydrologic hazard as determined by the engineering hydrology report.
   C.   Vegetation:
      1.   Vegetation shall be removed only when absolutely necessary, such as for the construction of structures, filled areas, roadways, firebreaks, or as required by this title.
      2.   Every effort shall be made to conserve topsoil that is removed during construction for later use on areas requiring revegetation or landscaping, e.g., cut and fill slopes.
      3.   Vegetation or a chemical or mechanical stabilization method sufficient to stabilize the soil shall be established on all disturbed areas, except for proposed rights of way, as each stage of grading is completed. Areas not contained within property boundaries shall be protected with adapted, fire resistant species of perennial vegetative cover after all construction is completed.
      4.   New plantings shall be protected with organic cover unless determined not to be necessary in the slope stabilization and revegetation plan and report.
   D.   Grading And Stabilization:
      1.   All retaining walls with a total vertical height of four feet (4') or more, including footing, shall be designed in accord with the regulations of the Ada County building code.
      2.   All slopes that are stabilized by mechanical or chemical means shall conform to the surrounding terrain and shall be given aesthetic treatment that is consistent with the purpose of this article.
      3.   Large tracts shall be divided into smaller workable units on which construction can be completed within one construction season so that large areas are not left bare and exposed during the winter-spring runoff period.
      4.   All disturbed soil surfaces shall be stabilized or covered prior to December 1. If the planned impervious surfaces (e.g., roadways, driveways, etc.) cannot be established prior to December 1, a temporary treatment adequate to prevent erosion shall be installed on those surfaces.
   E.   Hydrologic Controls:
      1.   Curb and gutter, pavement, and appurtenant roadway drainage facilities shall be designed to control roadway runoff to such a point that it is contained within the natural watercourse system.
      2.   Watercourses shall be riprapped or otherwise stabilized below drainage and culvert discharge points for a distance sufficient to convey the discharge without channel erosion.
      3.   Any material from construction, including soil and other material, shall not be deposited within any floodway or watercourse.
      4.   Hydraulic structures in major watercourses shall be designed for the 100-year flood. In minor watercourses, such structures shall be designed for the 50-year flood.
      5.   With the exception of roadway crossings, approved drainage structures, and recreation and open space uses that do not involve the destruction of vegetative cover, development shall be prohibited within the 100-year floodplain for major watercourses, and the 50-year floodplain for minor watercourses.
   F.   Sediment:
      1.   Sediment catchment ponds shall be constructed and maintained by the owner at the downstream property line of each development or at other appropriate locations to protect downstream properties and watercourses from the adverse impacts of sediment generated on site due to development construction work. All sediment catchment ponds shall be designed to provide a minimum of forty five (45) minutes' detention time at a velocity not greater than two feet (2') per second and shall provide for the removal of surface debris and surface contaminants.
      2.   The overall drainage system shall be completed and made operational at the earliest possible time during construction. No certificate of occupancy shall be issued on the property until the drainage system is complete.
      3.   Alterations of major watercourses shall be prohibited, except for approved roadway crossings and drainage structures.
      4.   Natural or improved open channels shall be preserved, or provided for, in watercourses, except that at roadway crossings, conduits may be permitted.
   G.   Roadways And Circulation:
      1.   Roadway alignments shall be designed to create the minimum feasible amounts of land coverage and the minimum feasible disturbance of the soil.
      2.   Roadway alignments shall be designed to minimize removal of existing deep rooted perennial vegetation.
      3.   Roadway alignments shall be designed to follow natural terrain.
      4.   The width of the graded section shall extend five feet (5') beyond the travel right of way line on both the cut and fill sides of the roadway for slope rounding purposes. If a sidewalk is to be installed parallel to the roadway, the graded section shall be increased by the width of the sidewalk plus five feet (5') beyond the sidewalk.
      5.   Combinations of collective private driveways, cluster parking areas, and on street parallel parking bays shall be used where possible to attempt to optimize the objectives of minimum soil disturbance and minimum impervious cover.
      6.   Approval of the applicable transportation authority is required for publicly dedicated streets.
      7.   Paving shall commence within ninety (90) days of county engineer approval of a drainage study or drainage plan (see section 8-4A-11 of this title) and shall be completed within thirty (30) days of any building permit being issued.
   H.   Alternatives: The director may approve, or recommend approval of, an alternative development proposal when the overall design, as proposed by the applicant, meets or exceeds the intent and the requirements of this article and shall not be detrimental to the public health, safety, or welfare.
   I.   Maintenance: The owner of any private property on which grading or other work has been performed pursuant to a grading plan approved subject to the regulations of this article shall maintain in perpetuity and repair all graded surfaces and erosion prevention devices, retaining walls, drainage structures, means, and devices not subject to the jurisdiction of the applicable transportation authority, and plantings and ground cover installed or completed. Such requirements shall be incorporated into the protective covenants for a subdivision and the conditions of approval for development applications. (Ord. 389, 6-14-2000; amd. Ord. 766, 12-8-2010)

8-3H-6: REQUIRED FINDINGS:

   A.   The site is physically suitable for the design and siting of the proposed development. The proposed development shall result in minimum disturbance of hillside areas;
   B.   The grading and excavation proposed in connection with the development shall not result in soil erosion, silting of lower slopes, slide damage, flooding, severe scarring, or any other geological instability or fire hazard that would adversely affect the public health, safety, and welfare;
   C.   Areas not suited for development because of soil, geology, vegetation, or hydrology limitations are designated as open space use;
   D.   Disruption of existing native vegetation and wildlife habitat is minimized; and
   E.   The proposal sets forth sufficient and adequate mitigation for the identified visual impacts beyond the normally expected impact of hillside development. (Ord. 389, 6-14-2000)

8-3H-7: WAIVER OF STANDARDS:

   A.   The director, upon the recommendation of the county engineer, has the authority to grant a waiver if the engineer of record can demonstrate conclusively that any of the standards required by this article are not necessary in the proposed development, and that the omission of such requirements would not result in any of the following:
      1.   Hazard to life or limb.
      2.   Hazard to property.
      3.   Adverse effects on the safety, use, or stability of a public way or drainage channel.
      4.   Adverse impact on the natural environment.
   B.   The request for a waiver of standards shall be in writing and shall state the reason for the request. The justification for the waiver shall be based on the engineering reports required in section 8-3H-3 of this article. (Ord. 389, 6-14-2000)

8-3H-8: ENGINEER OF RECORD RESPONSIBILITIES:

To ensure that the intent of this article is attained through the principles and practices of civil engineering, the applicant shall retain a professional engineer currently registered in the state of Idaho to serve as the engineer of record.
   A.   It shall be the responsibility of the engineer of record:
      1.   To prepare the preliminary grading plan.
      2.   To incorporate into the grading plans all recommendations contained in the soils, geology and hydrology reports, and the slope stabilization and revegetation plan and other reports as required in this article.
      3.   To inspect and certify all work within the project.
      4.   To act as coordinating agent for liaison between other professionals, the owner, and the director.
      5.   To prepare any revised plans and to submit an as built record to the director upon the completion of the project.
   B.   Prior to and during grading operations, the engineer of record shall submit all necessary reports, compaction data, soils, geology and hydrology recommendations to the director.
   C.   If, in the course of fulfilling the specified responsibilities, the engineer of record discovers that the work is being accomplished to a substantially lesser standard than required by this article or by the approved final grading plan, the noncompliance shall be reported in writing to the director within three (3) working days with recommendations for corrective measures, if applicable. The director may require corrective action within a specified period of time. If any deficiency is deemed by the director to be an imminent threat to the public health, safety, or welfare, that work shall be stopped immediately until such deficiencies are corrected.
   D.   If the engineer of record, the soils engineer, the geologist, the professional landscape architect, or the hydrologist of record is replaced during the course of work, the work shall be stopped. Work may resume when the replacement individual has agreed to accept the responsibility for certifications of the work within the areas of their individual technical competence.
   E.   In the event work is stopped during inclement weather, all open, and/or unfinished work on the project shall be protected to the satisfaction of the director.
   F.   At the conclusion of the approved work, the engineer of record shall submit a report to the director stating that the work has been executed in compliance with the approved plans. The report shall have the signature and professional seal of the engineer of record. (Ord. 389, 6-14-2000; amd. Ord. 766, 12-8-2010)

8-3I-1: GENERAL PROVISIONS:

   A.   Short Title: This article, as may be amended from time to time, shall be known, cited and referred to as the AVIMOR ZONING ORDINANCE.
   B.   Purpose And Intent: This article is adopted to implement the vision, goals and principles of the Avimor Planned Community and the Avimor Specific Plan; to provide a method of land use regulation, as authorized by the Ada County Comprehensive Plan and the Ada County zoning ordinance; and to set forth the development standards and administrative procedures for implementing the land use policies of the Avimor Specific Plan, in particular with respect to:
      1.   The design of quality, mixed use development.
      2.   Distinctive and effective regulations to guide development.
      3.   Flexibility and creativity in design and development in response to market demand and site specific conditions.
      4.   Creative and innovative land planning that is sensitive to existing environmental conditions.
      5.   The integration and balance of a variety of land uses.
      6.   The development of essential public services.
      7.   Phased and orderly development utilizing consistent criteria.
      8.   Establishing uses and standards for each residential and nonresidential use.
      9.   The development review and approval process.
   C.   Applicability: This article shall govern and control all development throughout the Avimor Planned Community as described in the Avimor Specific Plan, and as shown on the land use district map, and as detailed in the land use design and development standards matrix, and the land use table.
      1.   The provisions of the Ada County zoning ordinance shall govern all standards or processes that are not specifically identified, set forth, or modified by this article. Amendment of the Ada County zoning ordinance shall neither modify nor amend the specific provisions of this article, or the land use district map, the land use design and development standards matrix, or the land use table adopted pursuant to this article.
      2.   Any contradiction, inconsistency or ambiguity between the requirements of this article and any other provision of the Ada County zoning ordinance shall be governed and controlled by this article.
      3.   The provisions of this article are severable, and if any provision, sentence, clause, section, or any part thereof, is held illegal, invalid, unconstitutional, or inapplicable, it shall not affect or impair any of the remaining provisions, sentences, clauses, sections, or parts of this article.
      4.   To the extent that any specific land use is approved as a result of the adoption of the Avimor Specific Plan, including, without limitation, the placement and approval of any utility system or service, such uses shall require no further application or approval.
   D.   Definitions: The definitions set forth in section 8-1A-1 of this title are generally applicable in the interpretation and construction of this article; provided, however, that definitions set forth below are unique to this article and shall be used specifically in the interpretation and construction of this article. In the event of any conflict between the terms defined in section 8-1A-1 of this title and the terms defined below, the terms defined below shall control. Subject to the foregoing, any term used in this article not specifically defined below shall have the same meaning ascribed to that term as per the definitions set forth in section 8-1A-1 of this title, and any term not defined herein or in section 8-1A-1 of this title shall be given its plain and ordinary meaning.
    ACCESSORY DWELLING UNIT: A fully functional living unit which may be rented for income, provide residence in barter for personal services, or accommodate a family member, and which may be a separate structure on the same lot, a portion of the primary dwelling, or located over a garage, separate or attached to the primary dwelling.
   ALLEY: A public or private way affording a secondary means of access to abutting property at the back or side of a property. An alley may also provide required frontage to a public right-of- way.
   ARTICLE: This Avimor zoning ordinance.
   AVIMOR DESIGN REVIEW COMMITTEE OR DESIGN REVIEW COMMITTEE: That certain Design Review Committee established by the developer to review and approve site plans, architecture and landscape designs within the Avimor Planned Community before such plans and designs are submitted to Ada County for development permits.
   AVIMOR PLANNED COMMUNITY: That area depicted in the Avimor Specific Plan and on the land use district map, as they may be amended from time to time.
   AVIMOR SPECIFIC PLAN: The Avimor Specific Plan consists of the goals, objectives, policies, maps, development standards, administration provisions and other components of the Avimor application for a planned community which has been adopted by the Board, and which shall serve as a guide for development. A copy of the Avimor Specific Plan, as it may be amended from time to time, shall be on file with the Ada County Development Services Department.
   COMMUNITY CENTER: That area, building or facility which is intended to include the recreational and community service uses that will form the social hub of the Avimor Planned Community, and which may include for lease office(s) and/or retail space(s).
   COMMUNITY SERVICE DISTRICT: The land use designation described on the land use design and development standards matrix and depicted on the Land Use District Map, which designation identifies sites for utilities and public structures, services or facilities outside of the Village Center District, including, without limitation, schools, fire, police, EMS and restricted commercial uses that are compatible with open space or recreation, such as landscape nursery, bicycle or recreational sales, rental and repair, or such other uses that are determined by the Director to be in conformity with the Avimor goal, objectives and policies.
   DEVELOPMENT PERMITS: Those applications and permits required for approval by Ada County including, without limitation, master site plan approval, zoning certificate, grading permit and building permit, as may be required pursuant to this article or the Ada County zoning ordinance.
   DWELLING, LIVE/WORK: A building that offers the opportunity for the occupant to live and work in the same building with distinctly separate space for each activity.
   DWELLING, LOFT HOUSING: A dwelling unit located above a nonresidential use.
   FLOOR AREA RATIO: The ratio of total building floor area to the total land area of the parcel where the building is located.
   FOOD VEHICLE OR TRAILER CONCESSIONS: Unit is licensed as a mobile food establishment with the Health Authority. Unit from which food and beverages are sold. Includes permanent and semi- permanent vehicle or trailer and is a self-sufficient vehicle or trailer.
   FOOTHILLS OPEN SPACE DISTRICT: The land use designation described on the land use design and development standards matrix and depicted on the Land Use District Map, which designation identifies land retained as natural open space for the preservation of sensitive habitat, natural features and/or hillside areas free of development or structures other than wildlife habitat improvements, trails and trailhead parking, recreational improvements, agricultural uses, utilities, utility facilities, roadways, drainage facilities or other accessory uses or approved conditional uses.
   FOOTHILLS RESIDENTIAL DISTRICT: The land use designation described on the land use design and development standards matrix and depicted on the Land Use District Map, which designation identifies clustered, low to medium density residential housing areas.
   LAND USE DESIGN AND DEVELOPMENT STANDARDS MATRIX: The table of design and development standards and regulations for structures and site improvements specific to the Avimor Planned Community, as detailed in section 8-3I-2, table 8-3I-1 of this article.
   LAND USE DISTRICT: The specific districts within the Avimor Planned Community where designated land uses are regulated. See definitions of Community Service District, Foothills Residential District, Foothills Open Space District, Village Center District, Village Residential District, Village Open Space District.
   LAND USE DISTRICT MAP: The map depicting the boundary of the Avimor Planned Community and the land use districts within such boundary, as detailed in section 8-3I-2, table 8-3I-1 of this article.
   MIXED USE: The integration of different uses, including, without limitation, workspace such as office and retail, dwellings, shopping, schools, restaurants, entertainment, parks, and civic buildings, all within close proximity and often within the same buildings.
   MODEL HOME COMPLEX/SALES CENTER: One (1) or more dwellings or group of dwellings which is/are shown to prospective buyers, which may include parking, signage, fenced visitor "capture" area(s) and sales office(s).
   PHASE: A development area within the Avimor Planned Community designated as such on a subdivision plat.
   SELF-SUFFICIENT VEHICLE OR TRAILER: Unit is equipped for preparing perishable Potentially Hazardous Food/Temperature Controlled for Safety (PHF/TCS) foods, cooking, hot and cold storage, dry storage, utensil washing, hand washing etc., on the unit with self-contained potable water supply and wastewater storage. Pressurized hot and cold water is required in mobile unit.
   SUBSTANTIAL CONFORMANCE: A final plat shall be deemed to be in substantial conformance to a preliminary plat provided that the final plat represents no increase in the number of lots as approved for the preliminary plat, provided that the density and lot dimensions meet the standards of the applicable land use district, and provided that roadway alignments conform to those depicted on the preliminary plat.
   VILLAGE CENTER DISTRICT: The land use designation described on the land use design and development standards matrix and depicted on the Land Use District Map, which identifies a mixed use core of the community.
   VILLAGE OPEN SPACE DISTRICT: The land use designation described on the land use design and development standards matrix and depicted on the Land Use District Map, which identifies lands which shall remain open and free of development or structures other than wildlife habitat improvements, trails and trailhead parking, recreational improvements, utilities, roadways, drainage facilities or other uses as approved through the conditional use process.
   VILLAGE RESIDENTIAL DISTRICT: The land use designation described on the land use design and development standards matrix and depicted on the Land Use District Map which identifies a central single-family neighborhood of diverse housing types. (Ord. 739, 2-10-2010; amd. Ord. 860, 1-31-2017)

8-3I-2: LAND USE DISTRICTS:

   A.   Land Use Districts: All areas within the Avimor Planned Community are divided into land use districts, and the use of each lot, parcel or tract of land is defined by the standards of its applicable land use district. The land use districts and the statement of purpose for each are as follows:
      1.   Village Center District (VC): It is the purpose of the Village Center Land Use District to provide for civic, commercial, retail and office uses, and for higher density residential uses in a mixed use village environment, located at the primary entrance and focal point of the community, in conformity with the Avimor goal, objectives and policies.
      2.   Village Residential District (VR): It is the purpose of the village residential land use district to provide for predominantly single-family residential uses, in flat land or moderately sloped areas, at densities between 3.5 and eight (8) units per acre in conformity with the Avimor goal, objectives and policies.
      3.   Foothills Residential District (FR): It is the purpose of the foothills residential land use district to provide for larger lot, single-family residential uses in hillside and valley areas at densities ranging from 0.5 to two (2) units per acre in conformity with the Avimor goal, objectives and policies.
      4.   Community Service District (CS): It is the purpose of the community service land use district to provide for utilities and public structures, services or facilities outside of the village center district, including, without limitation, schools, fire, police, EMS, and restricted commercial uses that are compatible with open space or recreation, such as landscape nursery, bicycle or recreational sales, rental and repair, or such other uses that are determined by the director to be in conformity with the Avimor goal, objectives and policies.
      5.   Foothills Open Space District (FOS): It is the purpose of the foothills open space land use district to provide for preservation of riparian corridors of natural watercourses, steep hillsides and major ridges above the three thousand five hundred foot (3,500') elevation, view corridors and wildlife habitat in conformity with the Avimor goal, objectives and policies.
      6.   Village Open Space District (VOS): It is the purpose of the village open space land use district to provide for natural and improved open spaces, including, without limitation, riparian corridors of natural watercourses, parks and play fields, and wetlands and drainage facilities in conformity with the Avimor goal, objectives and policies.
   B.   Land Use Design And Development Standards Matrix: All structures and site improvements within the various land use districts shall meet the design and development standards of table 8-3I-1 of this section unless otherwise specified.
TABLE 8-3I-1
AVIMOR PLANNED COMMUNITY LAND USE DESIGN AND DEVELOPMENT STANDARDS MATRIX
 
Land Use District
Design Principles
Land Type/
Location
Uses
Density 1
Height2
Lot Size/
Coverage
3
Village Center
-   Centrally located civic, commercial, retail, office
-   Mixed use6
-   Most intense housing
-   Neighborhood scale commercial
-   Pedestrian orientation
-   Buildings relate to street
-   Shared use parking encouraged for commercial/community uses
Flat land areas
 
See land use district map, table 8-3I-2 of this section
Retail, office and service with residential14 uses at a minimum of 25% of gross building square footage for the entire village center district
 
See land use table, table 8-3I-3 of this section
3.5 dwelling units per acre minimum where residential uses proposed
 
Floor area ratio shall be a minimum of 0.3
 
There shall be no maximum floor area ratio
 
No more than 1 accessory dwelling unit per residential lot
40'
Size: 1,500 sq. ft. minimum
 
Coverage: No maximum
Village Residential
Diverse housing types and income levels
 
Pedestrian orientation
Flat land or gently sloped areas 0–8% slope typical7
 
See land use district map, table 8-3I-2 of this section
See land use table, table 8-3I-3 of this section
3.5 dwelling units per acre minimum; 8 dwelling units per acre maximum
 
No more than 1 accessory dwelling unit per residential lot
35'
Size:
Attached: 1,500 sq. ft.
minimum
Detached: 3,500 sq. ft. minimum
 
Coverage maximum:
Attached: 80%
Detached: 60%
Foothills Residential
Residential transition from village uses to foothills open space
 
Grade adaptive housing encouraged
Moderate hillside areas - 5–25% slopes typical
 
See land use district map
See land use table, table 8-3I-3 of this section
0.5 dwelling units per acre minimum; 2 dwelling units per acre maximum
 
No more than 1 accessory dwelling unit per residential lot
35'
Size: 9,000 sq. ft. minimum
 
Coverage maximum: 45%
Community Service
Structures or facilities providing community services outside of the village center district
Generally throughout the planned community where community services uses are needed
See land use district map, table 8-3I-2 of this section
See land use table, table 8-3I-3 of this section
n/a
40'
Size: 1,500 sq. ft. minimum
 
Coverage: No maximum
Foothills Open Space
Preservation of natural features, wildlife habitat and view corridors
Steep hillside areas with slopes exceeding 25%
See land use district map, table 8-3I-2 of this section
See land use table, table 8-3I-3 of this section
n/a
n/a
n/a
Village Open Space
Preservation of sensitive areas, scenic corridors and wildlife habitat, and cultural sites but with public or private recreational open spaces
Varied: riparian corridors, moderate slopes, unique natural features
See land use district map, table 8-3I-2 of this section
See land use table, table 8-3I-3 of this section
n/a
n/a
n/a
 
 
Land Use District
Frontage 4
Minimum Setbacks5
Streets/Parking
Design Standards
Landscaping/Open Space12
Village Center
20'
 
Corner lot: 25'
 
Flag lot: 20'8
No minimum setbacks
Public streets: ACHD approved standards
 
Parking requirement per chapter 4, article G of this title
 
On street parallel or diagonal parking with parking reduction by approval of a parking budget for nonresidential uses13
The development standards and design guidelines set forth in section B-13 of the Avimor specific plan are hereby incorporated by this reference and shall constitute the design and development standards for the following design elements: green design standards, water conservation, energy conservation, site design, grading and drainage, architecture, landscape, fences and walls, lighting, signage, and wildlife. The relevant development standards and design guidelines shall be applied to uses within this land use district as appropriate.
Open space: n/a
 
Landscape:
-   Residential uses subject to standards applied by Avimor design review committee
-   Community and commercial/industrial uses subject to requirements of chapter 4, article F of this title
Village Residential
30'
 
Corner lot: 35'
 
Flag lot: 20'8
Front: 10' for all structures except:
-   8' for alley loaded residences
-   20' for all residential garages9
Side:
Attached 0'
Detached 5'
Zero lot line: 10' between living area on adjacent lots11
 
Street side: 10'
 
Rear: 15' except: 5' for alley loaded residential garages10
Public streets: ACHD approved standards
 
Parking requirement per chapter 4, article G of this title
The development standards and design guidelines set forth in section B-13 of the Avimor specific plan are hereby incorporated by this reference and shall constitute the design and development standards for the following design elements: green design standards, water conservation, energy conservation, site design, grading and drainage, architecture, landscape, fences and walls, lighting, signage, and wildlife. The relevant development standards and design guidelines shall be applied to uses within this land use district as appropriate.
Open space: n/a
 
Landscape:
-   Residential uses subject to standards applied by Avimor design review committee
-   Community and commercial/industrial uses subject to requirements of chapter 4, article F of this title
Foothills Residential
40'8
 
Corner lot: 45'
 
Flag lot: 20'8
Front:
-   Living 15'
-   Garage 20'9
Side:
-   Minimum 5'
-   Cumulative 15' minimum
Street side: 10'
Rear:
-   Living 20'
-   Garage 5'10
Public streets: ACHD approved standards
 
Parking requirement per chapter 4, article G of this title
The development standards and design guidelines set forth in section B-13 of the Avimor specific plan are hereby incorporated by this reference and shall constitute the design and development standards for the following design elements: green design standards, water conservation, energy conservation, site design, grading and drainage, architecture, landscape, fences and walls, lighting, signage, and wildlife. The relevant development standards and design guidelines shall be applied to uses within this land use district as appropriate.
Open space: n/a
 
Landscape:
-   Residential uses subject to standards applied by Avimor design review committee
-   Community and commercial/industrial uses subject to requirements of chapter 4, article F of this title
Community Service
20'
Front: 10'
Side: 10'
Rear: 10'
- except for any parcel located adjacent to a residential district where setback to any common boundary with a residential lot shall be 30'
Parking requirement per chapter 4, article G of this title
The development standards and design guidelines set forth in section B-13 of the Avimor specific plan are hereby incorporated by this reference and shall constitute the design and development standards for the following design elements: green design standards, water conservation, energy conservation, site design, grading and drainage, architecture, landscape, fences and walls, lighting, signage, and wildlife. The relevant development standards and design guidelines shall be applied to uses within this land use district as appropriate.
Open space: n/a
 
Landscape: All uses subject to requirements of chapter 4, article F of this title
Foothills Open Space
 
n/a
For structures and improvements permitted within the district, there shall be no minimum setback except for any parcel located adjacent to a residential district where setback to any common boundary with a residential lot shall be 30'
Public streets: ACHD approved standards
 
Parking requirement per chapter 4, article G of this title except as set forth in note 14
The development standards and design guidelines set forth in section B-13 of the Avimor specific plan are hereby incorporated by this reference and shall constitute the design and development standards for the following design elements: green design standards, water conservation, energy conservation, site design, grading and drainage, architecture, landscape, fences and walls, lighting, signage, and wildlife. The relevant development standards and design guidelines shall be applied to uses within this land use district as appropriate.
Open space designated for all areas unoccupied by building lots, structures, streets, or parking lots, except as otherwise specified in chapter 4, article J of this title
 
Landscape: All uses subject to requirements of chapter 4, article F of this title
Village Open Space
n/a
For structures and improvements permitted within the district, there shall be no minimum setback except for any parcel located adjacent to a residential district where setback to any common boundary with a residential lot shall be 30'
Public streets: ACHD approved standards
 
Parking requirement per chapter 4, article G of this title except as set forth in note 14
The development standards and design guidelines set forth in section B-13 of the Avimor specific plan are hereby incorporated by this reference and shall constitute the design and development standards for the following design elements: green design standards, water conservation, energy conservation, site design, grading and drainage, architecture, landscape, fences and walls, lighting, signage, and wildlife. The relevant development standards and design guidelines shall be applied to uses within this land use district as appropriate.
Open space designated for all areas unoccupied by building lots, structures, streets, or parking lots, except as otherwise specified in chapter 4, article J of this title
 
Landscape: All uses subject to requirements of chapter 4, article F of this title
 
Notes:
   1.   The height of any structure shall be measured at:
-   The top of parapet for flat roof structures.
-   The midpoint average between the eaves and roof peak for pitched roof structures.
-   From finished grade at any point under the structure for grade adapted, or stepped foundations, or engineered building pad.
-   Height exception for: cell towers, chimneys, church spires or belfries, radio tower, water tanks, elevator bulkheads, windmills.
   2.   The term "coverage" is defined as the footprint of a structure at the foundation wall, including covered areas: porches, entries and patios. Driveways and walks are excluded.
   3.   Frontage requirements may be met by frontage on an alley.
   4.   Encroachments:
-   Eaves, fireplaces or other architectural features may project up to 2 feet into a side yard setback.
-   Open porches may project up to 5 feet into a front yard setback.
-   Open structures (porches, patios, balconies, and similar architectural features) may project up to 10 feet into a rear yard setback.
   5.   Mixed use: The integration of different uses, including, without limitation, work space such as office and retail, dwellings, shopping, schools, restaurants, entertainment, parks, and civic buildings, all within close proximity and often within the same buildings.
   6.   Slope is calculated as the average grade across a parcel of land.
   7.   Frontage for flag lots shall be 20 feet and shall apply in all land use districts notwithstanding the specified frontage.
   8.   Front setbacks shall be measured from back of sidewalk or property line, whichever is closer. The 20 foot garage setback is measured from face of the garage door to back of sidewalk. The setback for a side entry garage may be reduced to the same as the living area setback, except when access is from a side street.
   9.   The setback for an accessory dwelling unit over a garage shall be the same as for the garage itself.
   10.   Zero lot line development in the village residential land use district shall only be permitted on lots platted for such purpose which plat designates the permissible building envelope for each zero lot line lot.
   11.   Open space: Land or water left in an undisturbed natural condition and unoccupied by building lots, structures, streets, or parking lots, except as otherwise specified in chapter 4, article J of this title.
   12.   The amount of land dedicated to parking lots may be reduced by approval of a parking budget using shared parking, differential time use, 1 stop multiple use, and on street parking. The director shall have the authority to approve such a parking budget with different parking requirements than are set forth in the ordinances, after determining that adequate parking is provided for the proposed uses. The uses upon which the parking budget is approved shall not be changed without the director's approval. Diagonal on street parking may be approved by ACHD consistent with pedestrian safety.
   13.   Village center land use district may include the following residential uses: duplexes, single-family attached, live/work units, lofts, multi-family, and townhouses.
   14.   The parking requirements set forth in section 8-4G-6, table 8-4G-2 of this title for public recreation facility or open space as set forth therein, are hereby modified so that no parking shall be required for any use except for those open space uses specified in subsection 8-4J-3C4 of this title.
   C.   Land Use District Map: The land use districts are established by, and depicted on the Land Use District Map as set forth in table 8-3I-2 of this section. Land use district boundaries are general and shall be refined during the detailed site planning process. The exact location of the land use district boundaries shall be established during subdivision platting and shall be described by metes and bounds and identified on the preliminary and final subdivision plats.
TABLE 8-3I-2
 
   D.   Land Use Regulations: Land use eligibility for each land use district is set forth in table 8-3I-3, "Avimor Planned Community Land Use Table", of this section.
      1.   The land use table designates uses as: principal permitted uses (P), conditional uses (C), or prohibited uses (-).
      2.   Principal permitted uses shall be allowed anywhere within a land use district upon the platting of the property and designation of the land use district for the property where the use is proposed; the issuance of a zoning certificate; and the issuance of a building permit.
      3.   Any conditional use not approved as part of the Avimor Specific Plan shall be allowed only upon the issuance of a conditional use permit.
      4.   When a proposed use is not identified by this article as a principal permitted use, a conditional use or an accessory use, but such use is not specifically designated as a prohibited use, such shall be evaluated and determined by the Director pursuant to the Ada County zoning ordinance.
      5.   Agricultural uses, including the grazing of livestock within the Foothills Open Space District, shall not materially interfere with the district's open space function or any other use permitted therein under this article, as evaluated and determined by the Director in section 8-3I-3 of this article.
TABLE 8-3I-3
AVIMOR PLANNED COMMUNITY LAND USE TABLE
Use Category
Land Use Districts
Village
Center
Village
Residential
Foothills
Residential
Community
Service
Foothills
OS
Village
OS
Use Category
Land Use Districts
Village
Center
Village
Residential
Foothills
Residential
Community
Service
Foothills
OS
Village
OS
Residential:
 
 
 
 
 
 
 
Accessory dwelling unit
P
P
P
-
-
-
 
Bed and breakfast establishment
P
C
C
-
-
-
 
Duplex/dwelling, single-family attached
P
P
P
-
-
-
 
Dwelling, live/work
P
P
C
-
-
-
 
Dwelling, loft
P
-
-
-
-
-
 
Dwelling, multi-family
P
P
-
-
-
-
 
Dwelling, single-family detached
-
P
P
-
-
-
 
Dwelling, townhouse
P
P
-
-
-
-
 
Group daycare facility
P
P
P
-
-
-
 
Home occupations
P
P
P
-
-
-
 
Model home complex/sales center
-
P
P
-
-
-
Community:
 
 
 
 
 
 
 
Adult respite care center
P
C
-
-
-
-
 
Auditoriums, community theaters, museum, art gallery, library, post office/studio
P
-
-
-
-
-
 
Campground, recreational vehicle park
P
-
-
P
-
-
 
Church or place of religious worship
P
P
-
-
-
-
 
Community garden
P
P
-
P
-
P
 
Daycare center
P
C
-
-
-
-
 
Greenhouse; nursery, retail; nursery, wholesale
P
C
-
P
-
-
 
Nursing facility, skilled
P
-
-
-
-
-
 
Public safety; fire, police, EMS
P
C
-
P
-
-
 
Recreational area, play field and facilities, including school fields
P
P
P
P
P
P
 
Recreational buildings, public or private, indoor
P
P
P
C
-
-
 
Residential care facility
P
C
-
-
-
-
 
School, public or private: kindergarten, elementary
P
C
C
P
-
-
 
School, public or private: middle, junior high, and senior high
C
C
-
C
-
-
Commercial/industrial:
 
 
 
 
 
 
 
Animal clinic, animal hospital or veterinary office
P
-
-
-
-
-
 
Automotive service, gas station, car wash, convenience store with gas pumps
P
-
-
-
-
-
 
Bank/financial institution, including drive-up window service
P
-
-
-
-
-
 
Bar/brewpub
P
-
-
-
-
-
 
Dwelling, live/work
P
P
C
-
-
-
 
Equestrian facility
-
-
C
C
C
C
 
Food vehicle/trailer concessions
P
-
-
-
-
P
 
Grocery store/pharmacy
P
-
-
-
-
-
 
Health club, spa
P
-
-
-
-
-
 
Hotel or motel
P
-
-
-
-
-
 
Laundromat/dry cleaning
P
-
-
-
-
-
 
Liquor store/wine shop
P
-
-
-
-
-
 
Movie theaters/
entertainment complex
P
-
-
-
-
-
 
Office: professional, business, medical, dental
P
-
-
-
-
-
 
Outdoor markets/community events/sales events
P
P
P
P
P
P
 
Recycling center
C
-
-
-
-
-
 
Restaurant/bakery/coffee shop, including drive-through
P
-
-
-
-
-
 
Retail store
P
-
-
-
-
-
 
Social hall, club or lodge
P
-
-
-
-
-
 
Storage facility, self-service
P
-
-
-
-
-
 
Temporary construction office/temporary construction yard
P
P
P
P
P
P
 
Transit facility/park and ride lot
P
-
-
P
-
-
 
Utilities: substation, gas regulator station, telecommunication tower or facility
C
C
C
P
C
-
 
Utilities: well field, water and wastewater treatment facilities
C
C
C
P
C
-
 
(Ord. 739, 2-10-2010; amd. Ord. 832, 11-17-2014; amd. Ord. 860, 1-31-2017)

8-3I-3: ADMINISTRATION:

This section defines the review and approval process for the development of the Avimor Planned Community in accordance with the provisions of the Avimor Specific Plan and the Ada County zoning ordinance.
It shall be the duty of the Director to administer the provisions of this article for the development of the Avimor Planned Community. The Director shall interpret the provisions of this article and make decisions on land use issues not specifically addressed by the Avimor Specific Plan or this article.
The Director, Commission, and/or Board, as the case may be, shall base their approvals or disapprovals upon compliance with the provisions of this article and the goals and policies and purpose and intent of the Avimor Specific Plan.
   A.   Avimor Specific Plan Compliance: All development within the Avimor Planned Community shall conform to the Avimor Specific Plan as it may be amended from time to time.
      1.   Each phase of the development that is compliant with the Avimor Specific Plan shall be subject only to the applicable preliminary and final plat subdivision regulations of this article.
      2.   Modifications of the Avimor Specific Plan may be submitted, reviewed and approved concurrently with a subdivision preliminary plat.
   B.   Overlay Districts: Development proposals within the Avimor Planned Community shall be subject to and shall comply with the requirements of applicable overlay districts.
   C.   Land Divisions: The subdivision of land, or the adjustment of parcels within the Avimor Planned Community, shall conform to the Avimor Specific Plan and the applicable procedures and specifications of the Ada County zoning ordinance, except that the provisions of subsection 8-6A-1D of this title shall not apply to subdivision platting in Avimor; provided, however, that no neighborhood meetings shall be required for a subdivision application unless the preliminary plat proposes a modification of the Avimor Specific Plan as may be amended from time to time.
   D.   Development Permits: Development applications shall be reviewed and development permits shall be issued pursuant to the applicable procedures and specifications of this Code subject to the modifications set forth herein. Development permits shall not be issued prior to the approval of a subdivision application for a phase or portion of a phase. No development permits shall be issued for any use until such time as the applicant has provided to the County a letter of approval issued by the Avimor Design Review Committee evidencing the determination of the Avimor Design Review Committee that the use and application comply with the design standards for the Avimor Planned Community. The development permits shall be reviewed and issued as follows:
      1.   Master Site Plan: Master site plan approval shall be required pursuant to the procedures of chapter 4, article E of this title regarding master site plan approval for all uses except as modified herein.
         a.   Notwithstanding the provisions of subsections 8-4E-2B and C of this title, all land uses within the Avimor Planned Community shall obtain master site plan approval except for those designated as residential uses on the land use table, community events, and food vehicle/trailer concessions which have a separate approval process outlined in subsections D5 and D6, respectively of this section.
         b.   The Director shall apply those standards set forth in section 8-4E-4 of this title, to the extent that those standards do not conflict with the provisions of the land use design and development standards matrix. For purposes of master site plan approval, compliance with this article and the Avimor Specific Plan shall constitute compliance with subsections 8-4E-4D, G, I, and K of this title and an applicant for master site plan approval shall not be required to comply with the standards set forth in those subsections.
         c.   In the event of any conflict between the standards set forth in section 8-4E-4 of this title and the land use design and development standards matrix, the land use design and development standards matrix shall control.
         d.   In order to approve an application for master site plan approval, the Director shall make the following findings:
            (1)   The master site plan complies with this article, the Ada County zoning ordinance and is in accordance with the Avimor Specific Plan;
            (2)   The proposed landscaping meets the requirements of chapter 4, article F of this title;
            (3)   The proposed parking and loading spaces meet the requirements of chapter 4, article G of this title;
            (4)   The proposed lighting plan meets the requirements of chapter 4, article H of this title; and
            (5)   The proposed master site plan complies with the land use design and development standards matrix.
      2.   Zoning Certificate: A zoning certificate shall be required for all uses and shall be issued in conformance with the requirements of the Ada County zoning ordinance.
      3.   Building Permit: Building permits shall be issued in accordance with title 7, chapter 2 of this Code, or the same may be amended or retitled from time to time, for all uses as applicable. When a single-family dwelling has a garage or private living quarters that is semi-detached only, one (1) building permit is required for both the single-family dwelling and the semi-detached garage or private living quarters.
      4.   Grading Permits: Grading permits shall be issued in accordance with title 7, chapter 2 of this Code, or as the same may be amended or retitled from time to time and/or the Ada County zoning ordinance as applicable.
      5.   Community Events: For events that: a) are open to the public and/or persons who are not residents of Avimor and b) have an expected attendance of three hundred (300) people or more, Avimor must adhere to the following procedure:
         a.   Notify Avimor residents of the upcoming event by posting a notice in the community center and sending an electronic notice via e-mail or website portal indicating the date, time, and nature of the event. The notice will be given at least ten (10) days before the event, but not more than twenty five (25) days before the event.
         b.   At least ten (10) days prior to the event, Avimor will submit to Ada County Development Services letters from the Eagle Fire Protection District, Ada County Sheriff's Office, Central District Health Department, and the Ada County Highway District setting forth their respective approval of the event.
         c.   Apply for and obtain a zoning certificate after submittal of the approval letters specified in subsection D5b of this section.
For all smaller events, even those open to the public or nonresidents, no approval is required.
      6.   Food Vehicle/Trailer Concessions: Except as outlined in subsection D6d of this section, prior to any operation, a zoning certificate shall be obtained from Ada County Development Services. When applying for the zoning certificate, the following shall be submitted to the Ada County Development Services' Office:
         a.   Complete Ada County Development Services application form;
         b.   Copy of Central District Health Department current mobile food establishment license; and
         c.   Scaled site plan showing all property lines, location of food vehicle/trailer concessions, suitable off-street parking, and ADA accessibility.
         d.   For all food vehicle/trailer concessions that are part of an Avimor community event, a zoning certificate from Ada County Development Services is not required; however approval from the Central District Health Department is still required. (Ord. 739, 2-10-2010; amd. Ord. 832, 11-17-2014; amd. Ord. 860, 1-31-2017)

8-3K-1: SHORT TITLE:

This article shall be known, cited and referred to as the CARTWRIGHT RANCH PLANNED COMMUNITY ZONING ORDINANCE. (Ord. 739, 2-10-2010)

8-3K-2: PURPOSE AND INTENT:

Generally, this article is enacted with the purpose and intent of promoting, on behalf of the Cartwright Ranch planned community, public health, safety, comfort and general welfare; to conserve and control the population density and to facilitate adequate and economical provisions for public improvements, all in accordance with the Cartwright Ranch comprehensive plan for the desirable future physical development of Cartwright Ranch, all as authorized by the Ada County comprehensive plan, the Ada County zoning ordinance, the state legislature, and the constitution of the state.
Specifically, the purpose and intent of this article is to set forth the development standards and administrative procedures for implementing the land use policies of the Cartwright Ranch comprehensive plan. This article shall be consistent with the adopted Cartwright Ranch comprehensive plan. Furthermore, it is the purpose of this article to:
   A.   Provide for the design of quality, mixed use development within the Cartwright Ranch planned community;
   B.   Provide distinctive, efficient and effective regulations to guide development in Cartwright Ranch;
   C.   Encourage flexibility and creativity in Cartwright Ranch's design and development in order to respond to market demand and site specific conditions while enhancing the economic viability and quality of Cartwright Ranch;
   D.   Provide for the integration and balance of a variety of uses in Cartwright Ranch;
   E.   Provide flexibility for reconfiguration of residential and nonresidential uses and/or population density as long as these reconfigurations do not conflict with the overall intent of the Cartwright Ranch comprehensive plan and this article; and
   F.   Identify and define standards for uses that may occur in each of the land use categories. (Ord. 739, 2-10-2010)

8-3K-3: APPLICABILITY:

   A.   Development And Administration: This article governs the development and administration of Cartwright Ranch, as shown on the Cartwright Ranch land use map found in the Cartwright Ranch comprehensive plan. Where this article specifically references other sections of this code, such other sections of this code shall apply and govern. This article shall not apply to any land not incorporated within the Cartwright Ranch boundary.
The approved Cartwright Ranch comprehensive plan, as it may be amended, is now a part of the Ada County comprehensive plan.
   B.   Flexibility: The development standards and design guidelines contained in the Cartwright Ranch development plan and Cartwright Ranch comprehensive plan are intended to depict the general nature and relative intensity of residential and nonresidential development in Cartwright Ranch, while allowing sufficient flexibility at the time of platting so that the overall goals and policies and purpose and intent of Cartwright Ranch can be achieved. The configuration and densities of development parcels and phases may be altered from those shown on Cartwright Ranch comprehensive plan to accommodate market, financing, site, engineering, development and other conditions and revisions to the project's implementation strategy providing that the reconfiguration is in accordance with the Cartwright Ranch comprehensive plan and this article.
   C.   Conflict Of Laws: If conflict arises between this article and this code, the provisions of this code shall apply. Notwithstanding, where this article states definitions, standards, or other provisions specific to Cartwright Ranch, those provisions in this article shall apply. (Ord. 739, 2-10-2010)

8-3K-4: DEFINITIONS:

The following definitions are specific to Cartwright Ranch and shall be used in the interpretation and construction of this Cartwright Ranch zoning ordinance in lieu of definitions in other sections of this code. Any term used in this article not defined herein, shall have the meaning set forth in chapter 1, article A of this title. Any term not defined herein or in chapter 1, article A of this title, shall have its plain and ordinary meaning.
AGRICULTURAL OPERATION: The growing of cultivated crops, fruit trees, berry bushes, grazing, pasturage, raising of domestic livestock, horticulture, floriculture, viticulture, and the necessary accessory uses for packing, treating or storing of produce. The operation of any accessory uses to agricultural purposes shall not include a commercial packing facility, feedlot or stockyard, the commercial feeding of garbage or offal to swine or other animals, a slaughterhouse, the operation of a fertilizer works, nor plants for the reduction of animal matter.
AGRICULTURAL OUTBUILDING: Any building or structure used for storage or shelter of farming materials, equipment, supplies, products or animals.
CARTWRIGHT RANCH COMPREHENSIVE PLAN: The Cartwright Ranch comprehensive plan consists of the vision statement for Cartwright Ranch, a list of coordinated goals, objectives and policies for the development, a conceptual land use map, and illustrations depicting proposed street, trail and path cross sections. The Cartwright Ranch comprehensive plan is a part of the Ada County comprehensive plan.
CARTWRIGHT RANCH DEVELOPMENT PLAN: The Cartwright Ranch development plan generally includes: a) a natural features map and analysis, b) a narrative describing the proposed land uses and design of the project, c) a map showing existing land uses within one mile of the project site, d) a narrative assessment of development and population trends in Ada County, e) a transportation and mobility plan, f) a community services and utilities plan, g) an open space, parks and trails plan, h) a wildlife mitigation plan, i) narrative and examples of proposed central design concepts, j) a phasing plan, k) a letter from the Boise School District indicating school capacities and facility needs, and l) a stormwater management plan and narrative. The Cartwright Ranch development plan is attached as an exhibit to the Cartwright Ranch comprehensive plan.
CARTWRIGHT RANCH LAND USE MAP: The conceptual land use map included as figure B3 in the Cartwright Ranch comprehensive plan.
CARTWRIGHT RANCH OR CARTWRIGHT RANCH PLANNED COMMUNITY: The property depicted on the Cartwright Ranch zoning map, as amended from time to time.
CARTWRIGHT RANCH PROPERTY OWNERS' ASSOCIATION: The Idaho nonprofit or profit corporation whose members or stockholders consist exclusively of property owners within Cartwright Ranch and whose purpose is to provide for the administration and governance of the affairs of Cartwright Ranch.
CLINIC: A building, other than a hospital, used by one or more licensed physicians, dentists or licensed healthcare professionals for the purpose of receiving and treating patients.
COMMERCIAL USE: The purchase, sale or other transaction involving the handling or disposition of any article, substance or commodity for livelihood or profit, or the ownership or management of office buildings, offices, civic, recreational or amusement enterprises or the maintenance and use of offices by professions and trades rendering services including all advertising, events and other activities associated with such commercial use.
CONVALESCENT HOME: A home, place or institution licensed by the Idaho state department of health and welfare as a nursing home or assisted care facility that operates or maintains facilities providing convalescence or chronic care or both for a period in excess of twenty four (24) consecutive hours for three (3) or more patients not related by blood or marriage to the operator, said patients who by reason of illness or infirmity are unable to properly care for themselves.
DESIGN GUIDELINES: The design guidelines are established pursuant to the recorded conditions, covenants and restrictions for Cartwright Ranch, as they are amended from time to time. The design guidelines address the following, including, but not limited to, building plans, site development and grading plans, landscaping plans, elevations, and parking recommendations prior to submission to the county. The design review committee enforces the design guidelines.
DESIGN REVIEW COMMITTEE: The design review committee for Cartwright Ranch shall be formed and shall operate according to the requirements established in the recorded covenants, conditions and restrictions for Cartwright Ranch as they may be amended from time to time. The design review committee shall be responsible for reviewing, including, but not limited to, building plans, site development and grading plans, landscaping plans, elevations, and parking recommendations prior to submission of a building permit application to Ada County.
FAMILY DAYCARE HOME: A home, place or facility providing daycare for six (6) or fewer children.
HEALTH CLUB FACILITY: Any facility providing exercise services to its customers.
LOT DEPTH: The mean horizontal distance between the front and the rear lot lines.
LOT LINE, FRONT: The line separating the lot from the principal street on which it fronts.
LOT LINE, REAR: The lot line opposite and most distant from the front lot line. Where the lot is irregular and the lot lines converge, the rear lot line shall be deemed to be a line at a point where the side lot lines are not less than ten feet (10') apart.
LOT LINE, SIDE: Any lot line other than a front or rear lot line. A side lot line separating a lot from a street is also called a side street or flanking street lot line. A side lot line separating a lot from another lot or lots is also called an interior side lot line.
LOT LINES: The property lines bounding the lot.
LOT WIDTH: The mean width of the lot measured at right angles to its depth, provided however, that the minimum lot width required for each lot type shall be measured at a distance from the front line equal to the required least depth of the front yard, except in the case of a flag lot, where the flag portion of the lot is not included in the width calculation and width is measured at a distance from the end of the flag equal to the required depth of the front yard.
MODEL HOME: A single-family dwelling or a unit within a duplex or multi-family dwelling which is shown to prospective buyers of lots or dwellings for the purpose of promoting the retail sale of lots or dwellings within Cartwright Ranch.
MULTI-FAMILY DWELLING: A building or portion thereof designed for or used by three (3) or more families or housekeeping units.
PARK AND RIDE FACILITY: Facility designed to allow Cartwright Ranch residents to park their vehicles in order to car pool or ride in a van or bus to various locations throughout the Treasure Valley, usually to work.
PARKING AREA OR LOT: An open area, other than a street or public way, to be used for the storage of operable passenger automobiles and commercial vehicles, of occupants or users of the use for which the parking area is developed and is necessary and accessory.
PARKING STRUCTURE: A structure designed and used for vehicular parking and located near the building it serves.
PUBLIC STRUCTURE: Any structure designed for the benefit and use of the public.
RETAIL STORE: A store that sells commodities in small quantities to consumers, such as a general store, hardware store, bookstore, etc.
ROOMER OR BOARDER: Person paying remuneration for eating and sleeping within a residence.
SERVICE STATION: A filling station or business enterprise using the premises primarily to sell and supply motor fuel and lubricating oils and grease to on premises trade, including the sale of tires, batteries, automotive accessories, together with other related services, including minor motor vehicle repair. May also include convenience retail use, not to include a drive-in establishment.
SETBACK: The space on a lot required to be left open, either by the front, side and rear yard requirements of this article, or by the delineation on a recorded plat map, or recorded covenants.
STORAGE STRUCTURE: Any facility or structure used for the storage or parking (long term or short term) of, without limitation, vehicles, agricultural and recreational vehicles, boats and other watercraft, snowmobiles, equipment, and machinery.
TEMPORARY SALES OFFICE: That particular sales office(s), wherever located, used primarily for the wholesale or retail sales of property or lots located within Cartwright Ranch.
TOWN CENTER: That portion of Cartwright Ranch that is intended to include the commercial, recreational and community service uses that will form the social hub of the community.
UTILITY: Any person, entity or municipal department, duly authorized to furnish to the public or Cartwright Ranch residents under public regulation or otherwise, sewer, electricity, gas, steam, telephone, transportation, water, cable television or other services. (Ord. 739, 2-10-2010)

8-3K-5: LAND USE DISTRICTS:

The purpose of this section is to implement the Cartwright Ranch comprehensive plan. The Cartwright Ranch comprehensive plan depicts the general nature and relative intensity of residential and nonresidential development and uses subject to the appropriate flexibility and other standards discussed elsewhere in this article.
   A.   Land Use Districts:
      1.   PC District: Cartwright Ranch shall consist of a single base land use district, which shall be called the Cartwright Ranch PC district. The purpose of this district is to provide regulations and standards for development of residential and commercial uses in a variety of typologies including, but not limited to, single-family detached dwellings, zero lot line developments of single-family detached, single-family attached dwellings, duplexes and multiple-family dwellings including, but not limited to, townhouses and condominiums, and commercial and office uses, where a central wastewater collection and treatment system and community water system are provided.
      2.   Commercial Overlay District: Cartwright Ranch includes a commercial overlay district, as depicted on the Cartwright Ranch land use map, which shall be called the Cartwright Ranch commercial overlay district. Within the Cartwright Ranch commercial overlay district, the total lots must accommodate up to twenty thousand (20,000) square feet of space for commercial uses until there are a total of twenty thousand (20,000) square feet of commercial uses within Cartwright Ranch, unless permitted otherwise by the board of county commissioners. Notwithstanding the above restriction, residential units are permitted above the ground floor of commercial uses within the Cartwright Ranch commercial overlay district.
   B.   Lot Types:
      1.   View Lots: View lots generally occur on the site's moderately sloped hillsides located to the south and west of the Town Center. View lots vary substantially in size and configuration to respond to existing topography and to minimize visual impacts. Dimensional standards and allowed uses are set forth in the tables in figures 8-3K(a) and 8-3K(b) of this section.
      2.   Traditional Lots: Traditional lots provide two (2) functions. Some are buffers between different uses and are larger lots in an open rural setting. These lots are used to transition between adjoining properties and development or open space and development. They also transition between different lot types within the development. In sum, traditional lots are intended to provide a transition from farm to village character. Dimensional standards and allowed uses are set forth in the tables in figures 8-3K(a) and 8-3K(b) of this section.
      3.   Village Lots: Village lots are reminiscent of the "in town" areas traditionally found in Idaho's agricultural towns and villages. These lots and the homes built on them are intended to form a close knit residential village with strong pedestrian and community orientation that is found in some of the great older neighborhoods of Boise (such as the north end). Dimensional standards and allowed uses are set forth in the tables in figures 8-3K(a) and 8-3K(b) of this section.
      4.   Townhome Lots: Townhome lots are the community's smallest lots and are intended to provide alternative, attached or smaller detached homes that may appeal to seniors, empty nesters, first time buyers, and/or single parents who prefer a small home with limited yard area. Townhome lots also include commercial uses. Townhome lots are intended to be located in or within convenient walking distance of the Town Center. Dimensional standards and allowed uses are set forth in the tables in figures 8-3K(a) and 8-3K(b) of this section.
      5.   Developed Open Space Lots: Developed open space lots within the project are intended to provide both active and passive recreational opportunities. Developed open space lots may include neighborhood and community parks, community gardens, the Dry Creek greenbelt path, the project wide trail system, ponds, wetlands, creeks, and riparian areas. Dimensional standards and allowed uses are set forth in the tables in figures 8-3K(a) and 8-3K(b) of this section.
      6.   Natural Open Space Lots: Natural open space lots within the project are intended to provide both active and passive recreational opportunities as well as wildlife or natural open areas. Natural open space lots may include the project wide trail system, ponds, wetlands, creeks, riparian areas and designated wildlife areas. Dimensional standards and allowed uses are set forth in the tables in figures 8-3K(a) and 8-3K(b) of this section.
      7.   Community Center Lots: Community Center lots within Cartwright Ranch will be used for the Community Center, community pool, post office, and other civic and community service uses. Dimensional standards and allowed uses are set forth in the tables in figures 8-3K(a) and 8-3K(b) of this section.
   C.   Application Of Zoning Restrictions To Lot Types: The lot type shall be designated for each lot on each preliminary plat and final plat in Cartwright Ranch and the zoning restrictions imposed by this article shall attach to each lot at the time of recording of the final plat. The restrictions applying to any lot shall change without further action in the event the lot is replatted to a different lot type. In addition to any other restriction imposed by this article, final plats in Cartwright Ranch may designate building envelopes within lots. No structure may be constructed outside of a designated building envelope unless the lot is replatted in accordance with this code.
   D.   Use Of Unplatted Property: Unplatted property within Cartwright Ranch is intended to be used for its historic agricultural and other uses, as well as certain other uses in furtherance of the agricultural operations and goals and objectives of the Cartwright Ranch comprehensive plan. It is the ultimate intent that all property within Cartwright Ranch be platted and divided into different lot types. Notwithstanding chapter 2, article E of this title, any improvements associated with the uses specified in figure 8-3K(b) of this section may be developed and constructed on any unplatted property within Cartwright Ranch. All uses of the unplatted property shall be consistent with this article and the Cartwright Ranch comprehensive plan.
   E.   Purpose Of Cartwright Ranch Land Use Map: The Cartwright Ranch land use map contained within the Cartwright Ranch comprehensive plan depicts the general nature and relative intensity of residential and nonresidential development and uses by neighborhood and lot type, subject to the appropriate flexibility and other standards discussed in subsection 8-3K-3B of this article and elsewhere in this article.
   F.   Allowed Uses Within Land Use Districts: Within the Cartwright Ranch PC district described above, uses shall be allowed on lot types as set forth in the table in figure 8-3K(b) of this section. Uses that are not specifically listed but are determined by the director to be similar to listed permitted or conditional uses are also, respectively, permitted or conditionally permitted. All other uses are prohibited.
CARTWRIGHT RANCH
FIGURE 8-3K(a) LAND USE SUMMARY TABLE
Lot Characteristics
View Lots
Traditional Lots
Village Lots
Townhome Lots 6
Community Center Lots
Developed Open Space Lots
Natural Open Space Lots
Lot Characteristics
View Lots
Traditional Lots
Village Lots
Townhome Lots 6
Community Center Lots
Developed Open Space Lots
Natural Open Space Lots
Dimensions:
Lot size (minimum)
8,000 sq. ft.
6,000 sq. ft.
3,200 sq. ft.
1,200 sq. ft.
1,600 sq. ft.
See note d
See note d
Lot depth (minimum)
100'
100'
80'
60'
40'
See note d
See note d
Lot width (minimum)
80'
60'
40'
20'
40'
See note d
See note d
Lot frontage (flag)
30'
30'
30'
0'
0'
See note d
See note d
Setbacks:             
Front yard to living space (minimum)
20'
20'
10'
10'
20'
See note d
See note d
Front yard alley loaded garage (minimum)
n/a
10'
10'
10'
 
Front yard street loaded garage (minimum)
20'
20'
20'
20'
 
Side yard interior lot5 (minimum)
3'
3'
3'
0'
20'
See note d
See note d
Alley side yard5 (minimum)
3'
3'
3'
0'
20'
See note d
See note d
Street side yard lot4 (minimum)
13'
13'
13'
13'
30'
n/a
n/a
Minimum separation between buildings
15'
10'
10'
10'
n/a
n/a
n/a
Rear yard (main structure) (minimum)
20'
20'
10'
10'
20'
See note d
See note d
Rear yard (garage, storage or garden structures) (minimum)
10'
10'
10'
10'
n/a
See note d
See note d
Others:                      
Maximum building height
35'
35'
40'
45'
45'
45'
45'
Building coverage (maximum)
50%
60%
70%
85%
100%
n/a
n/a
Impervious surface coverage (maximum)
70%
80%
90%
100%
100%
n/a
n/a
Parking
See notes
a and b
See notes
a and b
See notes
a and b
See notes
a and b
See note a
See note d
See note d
 
Notes:
   1.   With resident family and not to exceed 2 persons.
   2.   Excluding drive-through.
   3.   Provided actual dry cleaning is done off site.
   4.   Only from corner property line.
   5.   Minimum setback is permitted only when minimum separation to adjoining buildings is maintained.
   6.   Single buildings permitted on multiple lots.
   7.   Standards in this article shall apply in lieu of county standards for multi-family development.
   a.   Per Ada County standards.
   b.   Includes garaged spaces.
   c.   If use is determined not to be accessory, it is conditional.
   d.   None.
   •   Principal permitted use.
   A   Accessory use.
   C   Conditional permitted use.
   Blank   Blank space denotes use is not permitted.
In the event of a conflict between the land use summary table and the text of this article, the text shall prevail.
CARTWRIGHT RANCH
FIGURE 8-3K(b) LAND USE SUMMARY TABLE
Cartwright Ranch PC District
Allowed Uses
View Lots
Traditional Lots
Village Lots
Townhome Lots
Community Center Lots
Developed Open Space Lots
Natural Open Space Lots
Cartwright Ranch PC District
Allowed Uses
View Lots
Traditional Lots
Village Lots
Townhome Lots
Community Center Lots
Developed Open Space Lots
Natural Open Space Lots
Residential:
 
Accessory structure, attached or detached
A
A
A
A
 
Condominium
 
Convalescent home
 
Duplex dwelling
 
Model home
 
Multi-family dwelling 6
 
Rental apartment
 
Single-family dwelling
 
Storage structure
A
A
A
A
A
A
C
 
Temporary sales office
Business:
 
Bank branch office2
 
Bar
 
Bed and breakfast establishment
C
C
C
 
Clinic
 
Dry cleaning and laundry2,3
 
Home occupation
A
A
A
A
 
Office: business and professional
 
Park and ride facility
 
Parking area or lot
C
 
Parking structure
 
Personal service retail
 
Restaurant4
 
Retail store2
 
Roomer or boarder1
A
A
A
A
 
Service station
C
 
Spa or health retreat
 
University related research/cultural facility
 
All other retail and commercial uses compatible with stated uses
C
Community support uses6:
 
Cell tower
C
C
C
C
C
C
C
 
Community center
 
Family daycare home
 
Fire protection, law enforcement and emergency medical facility
 
Group daycare home
 
Health club facility
C
C
 
Library
 
Place of public worship
 
Public structure
C
C
C
C
Ac
Ac
 
School, public or private
 
Social hall, club or lodge
 
Utility structure, except cell tower
C
C
C
C
Agriculture:
 
Agricultural operation
C
C
C
C
C
C
 
Agricultural outbuilding
 
Nursery, retail or greenhouse
C
Recreation:
 
Golf practice facility
 
Park
C
 
Recreation facility
 
Swimming pool
A
A
A
 
Tennis court
A
A
A
 
Trail
 
Notes:
   1.   With resident family and not to exceed 2 persons.
   2.   Excluding drive-through.
   3.   Provided actual dry cleaning is done off site.
   4.   Only from corner property line.
   5.   Minimum setback is permitted only when minimum separation to adjoining buildings is maintained.
   6.   Single buildings permitted on multiple lots.
   7.   Standards in this article shall apply in lieu of county standards for multi-family development.
   a.   Per Ada County standards.
   b.   Includes garaged spaces.
   c.   If use is determined not to be accessory, it is conditional.
   d.   None.
   •   Principal permitted use.
   A   Accessory use.
   C   Conditional permitted use.
   Blank   Blank space denotes use is not permitted.
In the event of a conflict between the land use summary table and the text of this article, the text shall prevail.
(Ord. 739, 2-10-2010)

8-3K-6: ADMINISTRATIVE REGULATIONS:

   A.   Preliminary Plat: Prior to approval of any preliminary plat for Cartwright Ranch, the board must determine that the plat complies with this Cartwright Ranch zoning ordinance and is in accordance with the Cartwright Ranch comprehensive plan.
   B.   Building Permits And Grading Permits: Building permits and grading permits within Cartwright Ranch shall be issued in accordance with the Ada County building code ordinance; provided, however, that no building or grading permit shall be issued to an applicant until such time as the applicant has provided to the county: 1) a decision issued by Cartwright Ranch design review committee in conformance with the Cartwright Ranch design guidelines approving or denying the proposed building, site, or landscape improvements for which the building permit or grading permit is being sought, 2) a permit from the applicable sewer authority, and 3) proof of payment of applicable impact fees to the Ada County highway district. If the Cartwright Ranch design review committee denies a proposed improvement (which decision must include a written explanation for the denial), or fails to respond within a reasonable period of time, then Ada County may issue a permit if the director determines, in the exercise of his or her discretion, that the committee's decision is illegal or improper.
   C.   Zoning Certificate: A zoning certificate shall be required for all uses within Cartwright Ranch and shall be issued in conformance with the requirements of the Ada County zoning ordinance.
   D.   Conditional Uses: Conditional uses within Cartwright Ranch may only be permitted with a conditional use permit issued in accordance with the conditional use standards in the Ada County zoning ordinance.
   E.   Accessory Uses: Accessory uses within Cartwright Ranch shall be reviewed in accord with the procedures of the Ada County zoning ordinance.
   F.   Public Community Event Permit Approval Process: Public community events within Cartwright Ranch shall require approval by the Cartwright Ranch property owners' association and shall otherwise be exempt from any Ada County approval requirements. (Ord. 739, 2-10-2010)

8-3K-7: SETBACKS; STRUCTURAL AND SPATIAL REQUIREMENTS:

See section 8-3K-5, figure 8-3K(a) of this article. (Ord. 739, 2-10-2010)

8-3K-8: LANDSCAPING REQUIREMENTS:

   A.   Applicability: Except as set forth in this article, Cartwright Ranch shall be exempt from the landscaping requirements of this title.
   B.   Standards:
      1.   All landscaping on individual lots within Cartwright Ranch shall conform to the following standards:
         a.   Landscape improvements shall incorporate, rehabilitate and enhance the existing site, incorporate indigenous species and minimize areas of intensive irrigation.
         b.   Landscape plantings should consist of at least two (2) different varieties and types in order to create a more unified rather than fragmented landscape.
         c.   Landscaping will be used to establish a clear and logical orientation to the neighborhoods and open space areas within Cartwright Ranch, including the following areas:
            (1)   Entry areas from Cartwright Road to the community will be characterized by open, country roads lined with native grasses punctuated by select plantings of deciduous tree groves that will reinforce the entries as community gateways.
            (2)   Riparian areas along Dry Creek will be characterized by naturalistic placement of trees and shrubs that will enhance and replicate the existing riparian environment while providing wildlife habitat.
            (3)   Natural open space lots will remain in their natural state or selectively enhanced as appropriate to the land and wildlife management parameters of the project.
            (4)   Town Center lots will include traditional street trees in planting strips and medians with front and rear yard domestic gardens in residential and commercial lots.
            (5)   View lots will include irrigated landscape envelopes that contrast with enhanced native shrubs and grasses outside those envelopes.
      2.   All landscaping improvements within the right of way of local, collector and arterial streets within Cartwright Ranch shall conform to the standards in subelement F5 (roadway design) and subelement F9 (landscape standards) of the Cartwright Ranch development plan, and shall conform to the following standards:
         a.   Along streets with curb, gutter and sidewalk, trees shall be provided with a minimum spacing of fifty feet (50').
         b.   Along streets without curb, gutter and sidewalk, other plantings shall be provided as appropriate with the topography and site.
   C.   Process: No final plat shall be approved until such time as the applicant has provided a landscape plan to Ada County, for review and approval, of proposed landscaping within road rights of way or common areas. The landscape plan shall contain the following:
      1.   The location, size, and type of all proposed landscaping materials (including specific references as to the species of plant materials), and verification that minimum landscaping requirements have been satisfied. All plants shall be shown at seventy five percent (75%) mature growth.
      2.   Existing vegetation to be saved shall be identified on the landscaping plan along with protection measures to be used during grading and construction. (Ord. 739, 2-10-2010)

8-3K-9: OPEN SPACE REQUIREMENTS:

   A.   Purpose: The purpose of this article is to encourage well designed open space at Cartwright Ranch.
   B.   Applicability: These regulations shall apply to open space lots within Cartwright Ranch.
   C.   General Regulations:
      1.   Preliminary Plat: In approving each preliminary plat within Cartwright Ranch, the board shall determine that the plat is in accordance with the open space parks and trails plan, which is part of the Cartwright Ranch development plan attached to the Cartwright Ranch comprehensive plan, with consideration of the flexibility provisions of this article and the plan.
      2.   Allowed Open Space Uses: Allowable uses on open space lots shall include, but not be limited to, the uses set forth in section 8-3K-5, figure 8-3K(b) of this article and otherwise described in this article.
   D.   Design Standards:
      1.   The design shall be consistent with Cartwright Ranch comprehensive plan and other adopted regional or local open space and recreation plans including the Ada County ridge to rivers pathway plan.
      2.   All open space lots shall be accessible to residents of Cartwright Ranch.
      3.   The number of private or public roadways that divide open space lots shall be limited to those necessary for proper traffic circulation, and the roadways shall not detract from the efficient use of the open space.
      4.   Open space lots shall be free of all structures, except those that enhance the use of the open space including, but not limited to, structures related to outdoor recreational use, structures of historic and/or cultural significance, educational buildings, well houses, utilities, infrastructure and facilities, and stormwater retention basins.
      5.   No more than ten percent (10%) of the total open space in Cartwright Ranch shall be impervious surface.
      6.   Open space lots shall be connected to open space areas on neighboring properties wherever possible including provisions for pedestrian walkways to create linked walkway or pathway systems. (Ord. 739, 2-10-2010)

8-3K-10: STREET FRONTAGE AND ACCESS REQUIREMENTS:

See section 8-3K-5, figure 8-3K(a) of this article. (Ord. 739, 2-10-2010)

8-3K-11: SIGN REQUIREMENTS:

   A.   Applicability: Except as set forth in this article, Cartwright Ranch shall be exempt from the sign requirements of this title.
   B.   Standards:
      1.   All signs within Cartwright Ranch shall conform to the following standards:
         a.   Freestanding signs should be in proportion/scale to the surrounding elements.
         b.   Identification signs will be provided at project entrances and appropriately illuminated by indirect and screened or ground mounted lighting.
         c.   Commercial signs shall be small and subdued to respect the residential character of the community; maximum commercial sign size is thirty two (32) square feet per side.
         d.   The following signs are prohibited:
            (1)   Signs that constitute a hazard to traffic or pedestrians;
            (2)   Signs located within any stream or drainage channel;
            (3)   Mobile signs or portable signs; balloons, flags or kite style signs;
            (4)   Inflatable signs;
            (5)   Signs that produce odor, sound, smoke, flame or other emissions;
            (6)   Signs that imitate or simulate official signs or that use yellow or red blinking or intermittent lights resembling danger or warning signals;
            (7)   Signs using strobe lights or individual light bulbs exceeding seventy five (75) watts;
            (8)   Signs on public property or right of way or signs attached to utility poles, streetlights, fences, barns, sheds, or similar structures; and
            (9)   Roof signs and billboards. (Ord. 739, 2-10-2010)

8-3K-12: ON AND OFF STREET PARKING REQUIREMENTS:

All parking shall meet federal Americans with disabilities act (ADA) requirements and shall be in accordance with the parking provisions of this title, except as set forth in section 8-3K-5, figure 8-3K(a) of this article or elsewhere in this article. (Ord. 739, 2-10-2010)

8-3K-13: STANDARDS FOR ENERGY AND WATER CONSERVATION:

   A.   All development within Cartwright Ranch shall conform to the following standards:
      1.   Indoor Water And Energy Use:
         a.   Water heaters will be energy star qualified or have equivalent performance specifications.
         b.   Cooling equipment will consist of energy star qualified air conditioning unit or heat pump or have equivalent performance specifications.
         c.   Heating equipment will consist of energy star qualified gas furnace, heat pump or boiler or have equivalent performance specifications.
         d.   At least three (3) energy star labeled light fixtures or energy star labeled compact fluorescent light bulbs will be installed.
         e.   Windows will be energy star qualified or have equivalent performance specifications.
      2.   Outdoor Water And Energy Use:
         a.   Turf areas will be zoned separately from other planted beds, based on watering needs. A timer/controller will activate valves for each watering zone.
         b.   View lots will concentrate irrigated landscaping within landscape envelopes. (Ord. 739, 2-10-2010)

8-3K-14: GRADING REQUIREMENTS:

Grading within Cartwright Ranch shall be in conformance with this title and title 7, chapter 2, "Building Codes", of this code. Grading on slopes greater than fifteen percent (15%) shall comply with the hillside adaptive grading standards found in Cartwright Ranch comprehensive plan policies CR 5.3-2, CR 6.1-1, and 12.1-2. (Ord. 739, 2-10-2010)

8-3K-15: DESIGN STANDARDS FOR STRUCTURES AND SITE IMPROVEMENTS:

   A.   All structures and site improvements within Cartwright Ranch shall be consistent with Cartwright Ranch comprehensive plan objectives CR 8.3 and CR 12.2, and the following standards:
      1.   The visual bulk of hillside residential development should be reduced so structures do not standout prominently when seen from a distance.
      2.   Building form should conform to site topography and not overshadow natural site features.
      3.   Step structures with slope, and cut into hillsides should be utilized to reduce visual bulk.
      4.   Building height should be minimized on highly visible ridge areas by avoiding multi-story houses that "skyline" on ridges and by locating residential buildings so as not to impact views near ridges.
      5.   No adjacent single-family detached home will be permitted to have the same plan, elevation or color.
      6.   Homes in village lots shall provide rear entry garages where access is provided.
      7.   Wood shake roofs are prohibited.
      8.   On view lots, building materials and color schemes should blend with the natural landscape of earth tones and grassland vegetation but minimize fuel potential for wildfires.
      9.   Buildings, accessory structures, fences, etc., shall be oriented to minimize impact on views and adjacent uses.
      10.   Mechanical equipment on roofs, aboveground transformers, satellite dishes, active solar panels, utility equipment and loading, service and storage areas shall be screened from view from the streets, pathways, public areas and adjacent uses.
      11.   Trash enclosures and maintenance structures shall be designed to be compatible in style, materials and colors with the main building and shall be of masonry type construction. (Ord. 739, 2-10-2010)

8-3K-16: AMENDMENTS:

Amendments to this article shall be in accordance to section 8-7-3 of this title. (Ord. 739, 2-10-2010)

8-3N-1: SHORT TITLE:

This article shall be known, cited and referred to as the DRY CREEK RANCH PLANNED COMMUNITY ZONING ORDINANCE. (Ord. 703, 2-10-2010)

8-3N-2: PURPOSE AND INTENT:

Generally, this article is enacted with the purpose and intent of promoting, on behalf of the Dry Creek Ranch Planned Community, public health, safety, comfort and general welfare; to conserve and control the population density and to facilitate adequate and economical provisions for public improvements, all in accordance with the Dry Creek Ranch Comprehensive Plan for the desirable future physical development of the Dry Creek Ranch Planned Community; all as authorized by the Ada County Comprehensive Plan, the Ada County zoning ordinance, the State statutes and the Constitution of the State.
Specifically, the purpose and intent of this article is to set forth the development standards for implementing the land use policies of the Dry Creek Ranch Comprehensive Plan. This article shall be consistent with the adopted Dry Creek Ranch Comprehensive Plan. Furthermore, it is the purpose of this article to:
   A.   Provide for the design of quality, mixed use development within the Dry Creek Ranch Planned Community;
   B.   Provide distinctive, efficient and effective standards to guide development in the Dry Creek Ranch Planned Community;
   C.   Allow flexibility and creativity for reconfiguration of residential and nonresidential uses and/or population density as long as these reconfigurations do not conflict with the Dry Creek Ranch Comprehensive Plan and this article;
   D.   Provide for the integration and balance of a variety of uses in the Dry Creek Ranch Planned Community; and
   E.   Identify and define standards for uses which may occur in each of the land use categories. (Ord. 703, 2-10-2010)

8-3N-3: APPLICABILITY:

This article governs the development of the Dry Creek Ranch Planned Community, as shown on the Dry Creek Ranch Land Use Map found in the Dry Creek Ranch Comprehensive Plan. Where this article specifically references other sections of this Code, such other sections of said Code shall apply and govern. This article shall not apply to any land not incorporated within the Dry Creek Ranch Planned Community boundary. Land outside the Dry Creek Ranch Planned Community may be annexed per the Dry Creek Ranch development agreement and this Code, as applicable.
   A.   Scope And Content: For the purpose of administration and enforcement, the Dry Creek Ranch Planned Community Land Use Map as adopted by Ada County shall be considered as the official land use map.
   B.   Flexibility: The development standards contained in the Dry Creek Ranch Comprehensive Plan and this article depict the general nature and relative intensity of residential and nonresidential development in the Dry Creek Ranch Planned Community, while allowing sufficient flexibility at the time of detailed planning and platting so that the overall goals, and policies of the Dry Creek Ranch Comprehensive Plan can be achieved. The configuration and densities of development parcels and phases may be altered to accommodate site and other conditions and revisions to the project's implementation strategy providing that the reconfiguration does not conflict with the land use map, specific restrictions contained within section 8-3N-5 of this article, or the Dry Creek Ranch Comprehensive Plan and this article. (Ord. 703, 2-10-2010; amd. Ord. 864, 2-21-2017)

8-3N-4: DEFINITIONS:

The following definitions shall be used in the interpretation of the Dry Creek Ranch zoning ordinance. Any term used in this article not defined herein, shall have the meaning set forth in chapter 1, article A of this title. Any term not defined herein or in chapter 1, article A of this title, shall have its plain and ordinary meaning.
ACTIVE ADULT COMMUNITY: An age-restricted development, which may be in any housing form, including detached and attached dwelling units, apartments, condominiums and residences, offering private and semi-private rooms.
ALLEY, DRY CREEK RANCH: A service roadway that may be public or private, providing a means of access to an abutting property and may be utilized for general traffic circulation. An alley may also provide required frontage to a building lot.
BULK: A building's shape, size, and mass. Often expressed and determined by its floor area ratio (FAR).
BUSINESS PARK: A development on a tract of land that contains a number of separate office structures, with accessory and supporting uses, and open space designed, planned, constructed and managed on an integrated and coordinated basis.
COMMON DRIVEWAY: An access shared by adjacent property owners that is privately owned and maintained.
COMMUNITY CENTER: A structure or structures utilized for recreational, social, educational and cultural activities by Dry Creek Ranch residents.
COMMUNITY INFORMATION CENTER: A temporary structure, administrative facilities, and parking area principally used as an information pavilion and/or office for the sale of homes in the community.
DESIGN GUIDELINES: Sub-Element F-9 of the currently adopted Dry Creek Ranch Development Plan on file with the Ada County Development Services Department.
DESIGN REVIEW COMMITTEE (DRC): The Design Review Committee for the Dry Creek Ranch Planned Community created in accord with the requirements established in the recorded covenants, conditions and restrictions for the Dry Creek Ranch Planned Community.
DRUGSTORE: A store where the primary business is the filling of medical prescriptions and the sale of drugs, medical devices and supplies and nonprescription medicines but where non-medical products may be sold as well.
DRY CREEK RANCH COMPREHENSIVE PLAN: The Dry Creek Ranch Comprehensive Plan consists of the vision, goals, objectives, policies, and maps as adopted by the Board, and serves as a guide for development of the Dry Creek Ranch Planned Community. The Dry Creek Ranch Development Plan and economic impact analyses are included as addenda to the Dry Creek Ranch Comprehensive Plan. A copy of the approved Dry Creek Ranch Comprehensive Plan with addenda is on file with the Ada County Development Services Department.
DRY CREEK RANCH DEVELOPMENT PLAN: The Dry Creek Ranch Development Plan includes a) a natural features map and analysis, b) a narrative describing the proposed land uses and design of the project, c) a map showing existing land uses within one mile of the project site, d) a narrative assessment of development and population trends in Ada County, e) a transportation and mobility plan, f) a community services and utilities plan, g) an open space, parks and trails plan, h) a wildlife mitigation plan, i) narrative and examples of proposed central design concepts, j) a phasing plan, k) a letter from the public-school entity who receives the designated school site from Dry Creek Ranch that indicates how it will meet the district needs, and l) a Storm water management plan and narrative. The Dry Creek Ranch Development Plan is on file with the Ada County Development Services Department.
DRY CREEK RANCH LAND USE MAP: A map identifying land use designations and/or land use districts within the Dry Creek Ranch Planned Community and found in the Dry Creek Ranch Planned Community Comprehensive Plan.
DRY CREEK RANCH, OPEN-SPACE: See definition of open-space.
DRY CREEK RANCH OR THE DRY CREEK RANCH PLANNED COMMUNITY: That area depicted as such on the Dry Creek Ranch Land Use Map and Ada County Zoning Map.
DRY CREEK RANCH PROPERTY OWNERS' ASSOCIATION: The Idaho nonprofit or for-profit corporation whose members or stockholders consist exclusively of property owners within the Dry Creek Ranch Planned Community and whose purpose is to provide for the administration and governance of the affairs of the Dry Creek Ranch in accordance with the covenants and restrictions of Dry Creek Ranch.
DWELLING, ACCESSORY:
   A.   An independent dwelling unit that has been added onto or created within a single-family dwelling;
   B.   A dwelling unit that is located in a completely separate structure on the same lot as the principal dwelling and is subordinate to the principal dwelling, such as a guesthouse.
DWELLING, LIVE/WORK: A residential use type that combines a dwelling and a commercial space under single ownership in a structure.
DWELLING, LOFT: A residential dwelling unit located above a non- residential use.
FENCE, OPEN: A fence constructed with openings between the materials used in its construction.
FENCE, SOLID: A fence, including gates, constructed of solid material, wood or masonry through which no visual images may be seen.
FIRE DEPARTMENT: The Eagle Fire District.
FLOOR AREA RATIO (FAR): The sum of the horizontal areas of the several floors inside the exterior walls of a building or portion thereof, divided by the lot area.
FRONTAGE, DRY CREEK RANCH: That side of a lot abutting either a public or private street or alleyway.
GREENWAY:
   A.   A linear open space established along either a natural corridor, such as waterway, ridgeline, scenic roadway or other route;
   B.   Any natural or landscaped course for pedestrian, equestrian or bicycle passage;
   C.   An open-space connector linking parks, community gardens, natural spaces, cultural features or historic sites with each other and with populated areas;
   D.   Locally, certain strip or linear parks designated as a parkway or greenbelt; or
   E.   Any man-made linear open space along a canal, lateral or ditch. Greenways shall be considered "developed open space".
HEALTH CLUB FACILITY: An establishment that provides facilities for aerobic exercise, running and jogging, exercise equipment, game courts, swimming facilities, saunas, therapeutic massage, lockers, showers, personal training and nutritional services and products.
HOSPITAL, LARGE ANIMAL: Any building or portion thereof designed or used for the care of the following animals: cattle, sheep, goats, horses, hogs, large exotic cats or similar animals.
HOSPITAL, SMALL ANIMAL: Any building or portion thereof designed or used for the care of the following animals: dogs, cats, primates, birds, water fowl, reptiles, rodents and similar animals.
LANDSCAPE PLAN: A component of a development plan on which are shown: proposed landscape species (such as number, spacing, size at time of planting and planting details); proposals for protection of existing vegetation during and after construction; proposed treatment of hard and soft surfaces; proposed decorative features; grade changes and buffers and screening devices.
LARGE ANIMAL GROOMING: Any building or portion thereof designed or used for the grooming of the following animals: cattle, sheep, goats, horses, hogs, large exotic cats or similar animals.
LOT, CORNER: A lot or parcel abutting upon two (2) or more streets at their intersection or upon two (2) parts of the same street, such streets or parts of the same street forming an interior angle of less than one hundred thirty five degrees (135°). The point of intersection of the street lines is the "corner".
LOT, FLAG: A lot where access to the public or private road is by a private right-of-way or driveway. Minimum lot frontage for flag lots shall be as specified in section 8-3N-5, table 8-3N-5D of this article.
MEW: Dwelling units built around a common open space area or court where the units face the open space area and are generally not accessed from a public street.
MODEL HOME: A single-family dwelling which is shown to prospective buyers of lots or dwellings for the purpose of promoting the retail sale of lots or dwellings within Dry Creek Ranch.
OPEN-SPACE: An open area used for passive or active recreation by the residents of Dry Creek Ranch or for conservation.
OPEN-SPACE, DEVELOPED: An open area for human activities that range from recreation activities to pastimes. Developed open space includes those parcels of property, such as roadway medians, which are improved and landscaped. Parks, pathways, and trailways shall be considered developed open space.
OPEN-SPACE, NATURAL: An open space area generally not occupied by any structures. These open spaces may include pathways, and trailways with or without pavement, wayfinding and/or interpretative signage.
PARKWAY: A landscaped area located between the edge of a street section or curb and a sidewalk dedicated to separate pedestrian and vehicular traffic.
PATHWAY: A clear way for pedestrians; equestrians or bicyclists that may or may not be improved.
RESTAURANT, OUTDOOR: Any part of a food establishment located outdoors, not used for any other purposes, open to the sky, with the exception that it may have retractable awning or umbrellas, and may contain furniture including: tables; chairs; railings and planters.
SHOPPING CENTER, CONVENIENCE COMMERCIAL: A small shopping center that typically features an approximately two thousand five hundred (2,500) square foot groceries/sundries store as an anchor tenant and may also provide other services such as gasoline sales, dry cleaners, coffee shop, dentist office, beauty shop, day care, etc. A convenience shopping center may have an average building area ranging from fifteen thousand (15,000) to thirty five thousand (35,000) square feet and occupy one (1) to three (3) acres.
SHOPPING CENTER, NEIGHBORHOOD COMMERCIAL: A moderate sized shopping center planned and developed as a unit, typically composed of a grocery up to sixty thousand (60,000) square feet in size, and usually containing additional smaller tenants serving a local market area. A neighborhood shopping center may have a gross floor area ranging from thirty five thousand (35,000) to one hundred thousand (100,000) square feet and may occupy up to ten (10) acres.
SMALL ANIMAL GROOMING: Any building or portion thereof designed or used for the grooming of the following animals: dogs, cats, primates, birds, water fowl, reptiles, rodents and similar animals.
STABLE, BOARDING: A structure designed for the feeding, housing and exercising of horses not owned by the owner of the premises for which the owner of the premises may receive compensation.
STABLE, PRIVATE: A detached accessory building or structure for the keeping of one (1) or more horses or cows owned and used by the occupant of the premises and not for remuneration, hire or sale.
STREET, ISLAND, DRY CREEK RANCH: A landscape island located within or surrounded by public or private street right-of-way.
STREET, KNUCKLE, DRY CREEK RANCH: An expansion of a local street typically around curves providing access to abutting properties and enlarged turning movement.
STREET, PRIVATE, DRY CREEK RANCH: A street approved by Ada County, which provides both access and street frontage for individual lots. Private streets are to be owned and maintained by the Dry Creek Ranch Property Owners' Association.
SUBSTANTIAL CONFORMANCE, DRY CREEK RANCH: A final plat located within the Dry Creek Ranch Planned Community shall be deemed to be in substantial conformance with the approved preliminary plat when:
   A.   1.   The proposed lots have a twenty-five percent (25%) or less deviation in the dimensional standards;
      2.   The proposed lots meet the dimensional standards of the base zoning district; and
      3.   The entire Dry Creek Ranch Planned Community (1, 414 acres) does not exceed the overall residential lot count of one thousand eight hundred fifteen (1,815) residential lots; or
   B.   1.   The widths of the proposed lots immediately adjacent to existing recorded lots are the same size or larger as the lots shown on the preliminary plat or the lot widths are the same size or larger as the lots shown on the preliminary plat or the lot widths are the same size or larger than the existing adjacent recorded lots;
      2.   The proposed lots meet the dimensional standards of the base zoning district; and
      3.   The entire Dry Creek Ranch Planned Community (1,414 acres) does not exceed the approved overall residential lot count of one thousand eight hundred fifteen (1,815) residential lots.
TREES, CLASS I, II, III: The classes of trees are defined for the purposes of this title by the publication Tree Selection Guide for Streets and Landscapes Throughout Idaho. In general, Class I trees are smaller ornamental trees, Class II trees are medium/large trees appropriate for street tree planting, and Class III trees are very large trees.
WATER TOWER: A water storage facility, usually above ground.
XERISCAPE: Landscaping that is characterized by the use of vegetation that is drought tolerant or of low water use in character.
(Ord. 703, 2-10-2010; amd. Ord. 864, 2-21-2017; Ord. 952, 5-10-2023; Ord. 980, 8-27-2024)

8-3N-5: LAND USE DISTRICTS:

The purpose of this section is to implement the Dry Creek Ranch Comprehensive Plan. These districts are intended to provide appropriate density for residential, commercial, open space and other development based on the Dry Creek Ranch Comprehensive Plan.
The Dry Creek Ranch Comprehensive Plan depicts the general nature and relative intensity of residential and nonresidential land use districts subject to the appropriate flexibility discussed elsewhere in this article.
   A.   Land Use Districts: It is the purpose of these districts to provide regulations and standards for development of residential; mixed-use; commercial; village center development in a variety of typologies including but not limited to single-family detached dwellings; zero-lot line developments of single-family detached dwellings; single-family attached dwellings, duplexes, townhouses and multi-family dwellings; office; retail; and neighborhood commercial where a municipal wastewater collection and treatment system and community water system are provided. A general description of the allowed uses within each district is provided below. For a detailed list of allowed uses see section 8-3N-6, tables 8-3N-6A and 8-3N-6B of this article and for dimensional standards see table 8-3N-5D of this section.
The Dry Creek Ranch Planned Community is divided into the following land use districts as shown on the land use map contained in the Dry Creek Ranch Comprehensive Plan and in Figures B-3.a, B-3.b, and B-3.c of the Dry Creek Ranch Development Plan.
Gross and net density calculations for individual development areas within the project may be calculated with decimal figures. Gross and net density calculations for the entire property shall be rounded to the nearest whole number.
Equestrian District: The Equestrian District allows for a gross density between 0.5 and 3.5 dwelling units per acre. This district may include single-family detached dwellings.
Hillside District: The Hillside District allows for a gross density between 1.5 and 5.5 dwelling units per acre. This district may include single-family detached dwellings, single-family attached dwellings, duplexes, and townhouses.
Low Density District: The Low Density District allows for a gross density between 2.5 and 4.0 dwelling units per acre. This district may include single-family detached dwellings, single-family attached dwellings, duplexes, and townhouses.
Medium Density District: The Medium Density District allows for a gross density between 4.0 and 7.0 dwelling units per acre. This district may include single-family detached dwellings, single-family attached dwellings, duplexes, and townhouses.
Mixed-Use District: The Mixed-Use District provides for a wide range of commercial, office, retail, industrial, and residential uses that allow property owners the flexibility to respond to the long-term evolution of development trends. All uses and structures will be sited and designed to be compatible with one another with a variety of complementary and integrated uses such as: various single-family and multi-family residential uses with gross densities of 1.0 to 20.0 dwelling units per acre. A minimum of twenty five percent (25%) of the Mixed-Use District shall be devoted to multi-family residential uses at a density range of between seven (7) to twenty (20) dwelling units per acre. Only fifty percent (50%) of the Mixed-Use District shall be residential uses. Other permitted uses include civic, office (including a business park), neighborhood retail, public and quasi- public use, and recreation in a compact, urban form. This district is intended to provide creativity and flexibility in planning and design of buildings and encourages both vertical and horizontal mixing of uses.
Village Center District: The Village Center Districts allow uses that promote the farm-to-table concept of Dry Creek, including community gardens, orchards, and small-scale nurseries that may take advantage of existing geothermal resources in the community. The Village Center Districts will also provide recreational opportunities, including riding arenas, sports fields, amphitheaters, clubhouses, and pools, as illustrated in the Dry Creek Ranch Development Plan. The Village Center District will also allow for limited commercial uses, as further set forth in section 8-3N-6, table 8-3N-6B of this article.
Park District: The Park District allows for the ability to provide developed open space, including active and passive uses. Areas designated as park areas are intended to provide both active and passive recreational opportunities. Park area uses include, but are not limited to: neighborhood and community parks; trail systems; greenbelts along Dry Creek and Spring Valley Creek; parkways; village park(s); community gardens; outdoor amphitheaters and interpretative centers.
Institutional/School Site District: The Institutional/School Site District allows a public use, such as a religious building; library; public or private school; hospital; or government-owned or operated building, structure or land used for public purpose.
Natural Open Space District: The Natural Open Space District allows for protection of natural or enhanced areas that are environmentally sensitive areas with characteristics such as steep slopes, habitat or areas of significant biological productivity or uniqueness that have been designated for protection. This district shall be thought of as natural open space for the Dry Creek Ranch Planned Community. However, paths; trails, both paved and unpaved; along with interpretative signage shall be allowed within this district.
Commercial District: The Commercial District allows for neighborhood or convenience commercial opportunities that will serve residents of the Dry Creek Ranch Planned Community and other surrounding developments.
TABLE 8-3N-5D
DRY CREEK RANCH DIMENSIONAL STANDARDS BY LAND USE DISTRICT
Dimensional Standards
Land Use Designations - Single Family Residential
Equestrian
Hillside
Low
Medium
Dimensional Standards
Land Use Designations - Single Family Residential
Equestrian
Hillside
Low
Medium
Density (dwelling units/gross acre)
0.5 - 3.5
1.5 - 5.5
2.5 - 4.0
4.0 - 7.0
Minimum lot size:
 
 
 
 
 
Single-family detached dwelling
13,000 sq. ft.
8,000 sq. ft.
8,000 sq. ft.
4,000 sq. ft.
 
Other principal structure
13,000 sq. ft.
8,000 sq. ft.
8,000 sq. ft.
4,000 sq. ft.
Minimum lot frontage 1:
 
 
 
 
 
Interior lot
30'2
15'3
15'3
15'3
 
Corner lot
35'
18'
18'
18'
Minimum setbacks:
 
 
 
 
 
From front property line:
 
 
 
 
 
    Dwelling or principal structure
15'
10'
10'
10'
 
    Garage
20'
15'
15'
15'
 
From rear property line:
 
 
 
 
 
    Dwelling or principal structure
10'
10'
10'
10'
 
    Garage
10'
10'
10'
10'
 
From interior side property line4:
 
 
 
 
 
    Detached dwelling or principal structure or garage
5'
5'
5'
3'
 
    Attached dwelling or principal structure or garage
0'
0'
0'
0'
 
From street side property line:
 
 
 
 
 
    Dwelling or principal structure or garage
10'
10'
10'
10'
Maximum coverage
No maximum
No maximum
No maximum
No maximum
Maximum impervious surface
No maximum
No maximum
No maximum
No maximum
Maximum floor area ratio
No maximum
No maximum
No maximum
No maximum
Maximum structure height
40'
40'
40'
40'
 
   Notes:
      1.    See section 8-3N-15 of this article for minimum frontage when served by a common driveway.
      2.    Minimum frontage for flag lots shall be 15 feet.
      3.    Minimum frontage for flag lots shall be 10 feet.
      4.    A minimum distance of 6 feet shall be required between structures on adjacent lots.
Dimensional Standards
Land Use Designations
Mixed Use
Village
Center
Park
Institutional/
School Site
Natural
Open Space
Commercial
Dimensional Standards
Land Use Designations
Mixed Use
Village
Center
Park
Institutional/
School Site
Natural
Open Space
Commercial
Density (dwelling units/gross acre)
1.0 - 20.0
n/a
n/a
n/a
n/a
n/a
Minimum lot size:
 
 
 
 
 
 
 
Single-family detached dwelling
1,200 sq. ft.
n/a
n/a
n/a
n/a
n/a
 
Other principal structure
1,200 sq. ft.
n/a
n/a
n/a
n/a
n/a
Minimum lot frontage 1:
 
 
 
 
 
 
 
Interior lot
0'
0'
0'
20'
0'
0'
 
Corner lot
0'
0'
0'
20'
0'
0'
Minimum setbacks:
 
 
 
 
 
 
 
From front property line:
 
 
 
 
 
 
 
    Principal structure
0'
0'
n/a
20'
n/a
0'
 
    Accessory structure
0'
0'
n/a
20'
n/a
0'
 
From rear property line:
 
 
 
 
 
 
 
    Principal structure
0'
0'
n/a
20'
n/a
0'
 
    Accessory structure
0'
0'
n/a
20'
n/a
0'
 
From interior side property line
0'
0'
n/a
10'
n/a
0'
 
From side street property line
6'
6'
n/a
15'
n/a
n/a
 
From side property line adjacent to alley:
 
 
 
 
 
 
 
    Dwelling or principal structure
10'
10'
n/a
n/a
n/a
n/a
 
    Garage
0'
0'
n/a
n/a
n/a
n/a
Maximum coverage
No maximum
No maximum
No maximum
No maximum
No maximum
No maximum
Maximum impervious surface
No maximum
No maximum
15%
No maximum
10%
90%
Maximum floor area ratio
No maximum
No maximum
No maximum
No maximum
No maximum
No maximum
Maximum structure height
60'
60'
60'
60'
65'
65'
 
Note:
   1.    See section 8-3N-15 of this article for minimum frontage when served by a common driveway.
(Ord. 703, 2-10-2010; amd. Ord. 864, 2-21-2017)

8-3N-6: LAND USE REGULATIONS:

Tables 8-3N-6A through 8-3N-6B of this section list allowed uses within each land-use district. Approval of these uses shall follow the approval process outlined in section 8-3N-7 of this article.
TABLE 8-3N-6A
ALLOWABLE USES IN THE DRY CREEK RANCH LAND USE DISTRICTS
Principal permitted (P); accessory (A); conditional (C); or prohibited (-) use
Use
Equestrian
Hillside
Low
Medium
Use
Equestrian
Hillside
Low
Medium
Accessory structure
A
A
A
A
Active adult community
C
P
P
P
Agricultural structure
A
-
-
-
Agricultural use
P
-
-
-
Amusement or recreation facility, indoor
C
C
C
C
Amusement or recreation facility, outdoor
C
C
C
C
Animal boarding with outside runs
C
-
-
-
Animal clinic, animal hospital or veterinary office
C
C
C
C
Automobile, major repair
-
-
-
-
Bar, brew pub or nightclub
-
-
-
-
Bed and breakfast establishment
C
C
C
C
Brewery or distillery
-
-
-
-
Business park
-
-
-
-
Car wash
-
C
C
C
Church or place of worship
C
C
C
C
Clinic, medical
-
C
C
C
Club, lodge, or social hall
-
C
C
C
Community center
P
P
P
P
Community information center
P
P
P
P
Daycare facility (more than 12 children)
C
C
C
C
Daycare home, family (6 or fewer children)
A
A
A
A
Daycare home, group (7 - 12 children)
A
A
A
A
Drive up window service
-
-
-
-
Drugstore
-
-
-
-
Duplex or single-family attached dwelling
-
P
P
P
Dwelling, accessory
A
A
A
A
Dwelling, caretaker for an approved use
A
A
A
A
Dwelling, live/work
-
-
-
-
Dwelling, loft
-
-
-
-
Dwelling, multi-family
-
-
-
-
Dwelling, secondary attached or detached
A
A
A
A
Dwelling, single family attached
-
P
P
P
Dwelling, single family detached
P
P
P
P
Farm, garden, lumber, or building supply store
-
-
-
-
Fence, open (no barbed wire)
P
P
P
P
Fence, solid
P
P
P
P
Gasoline or diesel fuel sales facility
-
-
-
-
Health club facility
-
C
C
C
Home occupation
A
A
A
A
Hospital
-
-
-
-
Hospital, large animal
C
-
-
-
Hospital, small animal
C
C
C
C
Hotel or motel
-
-
-
-
Kennel, commercial
-
-
-
-
Kennel, hobby
A
A
A
A
Large animal grooming
C
C
C
C
Laundromat
-
-
-
-
Model home
P
P
P
P
Nursery, wholesale or retail
C
C
C
C
Nursing facility, skilled
C
C
C
C
Off-street parking facility
P
P
P
P
Office, related to an approved use
A
A
A
A
Office, temporary construction
A
A
A
A
Outdoor storage
A
A
A
A
Package and letter delivery service
-
-
-
-
Personal, business or professional services
-
-
-
-
Portable classroom
-
-
-
-
Public or quasi public use 1
C
C
C
C
Radio and television broadcasting station
-
-
-
-
Recycling center
-
-
-
-
Research and development facility
-
-
-
-
Residential care facility
C
C
C
C
Restaurant or eating place
-
-
-
C
Restaurant, outdoor
-
-
-
C
Retail sales, relating to an approved use
A
A
A
A
Retail store
-
C
C
C
School, public or private
C
C
C
C
School, university
-
C
C
C
School, vocational or trade
C
C
C
C
Shopping center, convenience commercial
-
-
-
-
Shopping center, neighborhood commercial
-
-
-
-
Signs, non-accessory, off premises
-
-
-
-
Small animal grooming
C
C
C
C
Stable, boarding
P
-
-
-
Stable or riding arena, commercial
P
-
-
-
Stable, private
P
-
-
-
Storage facility, self service
-
-
-
-
Studio
C
C
C
C
Swimming pool, private
-
A
A
A
Swimming pool, public
P
P
P
P
Tower or antenna structure, commercial
C
C
C
C
Tower or antenna structure, private
A
A
A
A
Transit facility
C
P
P
P
Water tower
P
P
P
P
Winery
C
C
C
C
 
Note:
   1.    Wells, potable water, and wastewater treatment facilities are required infrastructure considered in connection with the approval of the Dry Creek Ranch zoning ordinance and development plan. Accordingly, no conditional use review is required in connection with the construction of these facilities. Administrative, staff-level review of site plans associated with such facilities will be required at the time of building permit.
TABLE 8-3N-6B
ALLOWABLE USES IN THE DRY CREEK RANCH LAND USE DISTRICTS
Principal permitted (P); accessory (A); conditional (C); or prohibited (-) use
Use
Mixed Use
Village Center
Park
Natural
Open Space
Institutional/
School Site
Commercial
Use
Mixed Use
Village Center
Park
Natural
Open Space
Institutional/
School Site
Commercial
Accessory structure
A
A
A
A
A
A
Active adult community
P
P
-
-
-
-
Agricultural structure
A
A
P
-
A
A
Agricultural use
P
P
P
-
-
-
Amusement or recreation facility, indoor
C
P
-
-
-
P
Amusement or recreation facility, outdoor
C
P
P
-
P
C
Animal boarding with outside runs
C
C
-
-
-
P
Animal clinic, animal hospital or veterinary office
P
P
-
-
-
P
Automobile, major repair
C
-
-
-
-
C
Bar, brew pub or nightclub
P
P
-
-
-
P
Bed and breakfast establishment
P
C
-
-
-
P
Brewery or distillery
P
P
-
-
-
P
Business park
C
-
-
-
C
P
Car wash
A 1
-
-
-
-
P
Church or place of worship
P
P
-
-
C
P
Clinic, medical
P
P
-
-
-
P
Club, lodge or social hall
P
P
C
-
C
P
Community center
P
P
P
-
-
P
Community information center
P
P
P
-
C
P
Daycare facility (12 or more children)
P
P
-
-
-
P
Daycare home, family (6 or fewer children)
A
A
-
-
-
A
Daycare home, group (7 - 12 children)
A
A
-
-
-
A
Drive up window service
C
-
-
-
-
C
Drugstore
P
-
-
-
-
P
Duplex or single-family attached dwelling
P
-
-
-
-
-
Dwelling, accessory
A
-
-
-
-
-
Dwelling, caretaker of an approved use
A
-
-
-
-
A
Dwelling, live/work
P
P
-
-
-
P
Dwelling, loft
P
-
-
-
-
P
Dwelling, multi-family
P
-
-
-
-
C
Dwelling, secondary attached or detached
A
-
-
-
-
A
Dwelling, single family attached
P
-
-
-
-
-
Dwelling, single-family detached
P
-
-
-
-
-
Farm, garden, lumber, or building supply store
C
C
-
-
-
P
Fence, open (no barbed wire)
A
A
A
A
A
A
Fence, solid
A
A
A
A
A
A
Gasoline or diesel fuel sales facility
C
-
-
-
-
P
Health club facility
P
P
-
-
-
P
Home occupation, large
A
A
-
-
-
-
Home occupation, small
A
A
-
-
-
-
Hospital
P
-
-
-
-
P
Hospital, large animal
C
-
-
-
-
P
Hospital, small animal
P
-
-
-
-
P
Hotel or motel
C
-
-
-
-
P
Intermediate care facility
P
-
-
-
-
P
Kennel, commercial
P
-
-
-
-
P
Kennel, hobby
A
-
-
-
-
-
Large animal grooming
P
-
-
-
-
P
Laundromat
P
-
-
-
-
P
Model home
P
-
-
-
-
P
Nursery, wholesale or retail
P
P
-
-
-
P
Nursing facility, skilled
P
-
-
-
-
P
Off-street parking facility
P
P
P
P
P
P
Office, related to an approved use
A
A
-
-
A
A
Office, temporary construction
P
P
-
-
A
P
Outdoor storage
P
P
-
-
A
P
Package and letter delivery service
P
P
-
-
-
P
Personal, business or professional services
P
P
-
-
-
P
Portable classroom
-
-
-
-
A
-
Public or quasi public use
P
P
P
C
P
P
Radio and television broadcast station
C
-
-
-
-
C
Recycling center
C
-
-
-
-
P
Research and development facility
P
-
-
-
-
P
Residential care facility
P
-
-
-
-
C
Restaurant or eating place
P
P
-
-
-
P
Restaurant, outdoor
P
P
-
-
-
P
Retail sales relating to an approved use
A
A
-
-
-
A
Retail store
P
P
-
-
-
P
School, public or private
P
-
-
-
P
P
School, university
P
-
-
-
P
P
School, vocational or trade
P
-
-
-
P
P
Shopping center, convenience commercial
P
P
-
-
-
P
Shopping center, neighborhood commercial
P
P
-
-
-
P
Signs, non-accessory, off premises
C
C
-
-
C
P
Small animal grooming
P
P
-
-
-
P
Stable, boarding
P
-
-
-
P
P
Stable or riding arena, commercial
P
P
-
-
P
P
Stable, private
P
-
-
-
P
P
Storage facility, self service
P
-
-
-
P
P
Studio
P
-
-
-
-
P
Swimming pool, private
A
A
A
-
A
A
Swimming pool, public
P
P
P
-
P
P
Tower or antenna structure, commercial
C
C
C
C
C
C
Tower or antenna structure, private
A
A
-
-
A
A
Transit facility
P
P
P
-
P
P
Water tower
P
P
P
P
P
P
Winery
P
P
-
-
-
P
 
Note:
   1.    Accessory to gasoline or diesel fuel sales facility.
(Ord. 703, 2-10-2010; amd. Ord. 864, 2-21-2017)

8-3N-7: ADMINISTRATIVE REGULATIONS:

   A.   Principal permitted uses shall be reviewed in accordance with the specific use standards in chapter 5 of this title and section 8-3N-8 of this article; the master site plan standards of chapter 4, article E of this title, unless specifically exempt under subsection 8-4E-2B of this title; and with the Dry Creek Ranch Comprehensive Plan.
   B.   Accessory uses shall be reviewed in accordance with the procedures in chapter 7 of this title; the specific use standards in chapter 5 of this title and section 8-3N-8 of this article; the accessory use regulations of chapter 5, article A of this title and table 8-3N-7 of this section; and with the Dry Creek Ranch Comprehensive Plan.
   C.   Conditional uses shall be approved in accordance with the procedures in chapter 7 of this title; the specific use standards in chapter 5 of this title and section 8-3N-8 of this article; the conditional use regulations of chapter 5, article B of this title; and with the Dry Creek Ranch Comprehensive Plan.
   D.   The development of any allowable use within the Dry Creek Ranch Planned Community requires a zoning certificate in accordance with section 8-7-1 of this title. A zoning certificate will not be issued until such time as the applicant has provided to the County a design review letter issued by the Dry Creek Ranch Design Review Committee (DRC) stating that the plan complies with the design guidelines of the Dry Creek Ranch Comprehensive Plan. Ada County may issue a zoning certificate if the DRC fails to respond to an application within a reasonable period of time.
   E.   Prior to approval of any preliminary plat for Dry Creek Ranch, the Board must find that the plat is in accordance with the Dry Creek Ranch Comprehensive Plan.
   F.   Building permits and grading permits shall be issued in accordance with Ada County Building Code; provided however, that no building or grading permit shall be issued to an applicant until such time as the applicant has provided to the County: 1) a design review letter issued by the Dry Creek Ranch Design Review Committee recommending approval, denial, or conditional approval, of the proposed building improvements and/or grading for which the building permit or grading permit is being sought.
TABLE 8-3N-71
ACCESSORY USES AND REQUIRED APPROVAL
Accessory Use
Required Approval
Zoning
Certificate
Administrative
Approval
Accessory Use
Required Approval
Zoning
Certificate
Administrative
Approval
Accessory structure (over 1,500 sq. ft.)
Yes
Yes
Accessory structure (under 1,500 sq. ft.)
Yes
No
Car wash
Yes
Yes
Dwelling, accessory
Yes
Yes
Dwelling, secondary attached or detached
Yes
Yes
Fence, open (no barbed wire)
No
No
Fence, solid
No
No
Home occupation, large
Yes
Yes
Home occupation, small
Yes
No
Tower or antenna structure, private
Yes
Yes
 
Note:
      1.    This table supplements section 8-5A-2, table 8-5A-1 of this title.
(Ord. 703, 2-10-2010; amd. Ord. 864, 2-21-2017)

8-3N-8: SPECIFIC USE STANDARDS:

The purpose of this section 8-3N-8 is to provide specific standards for all uses as set forth in section 8-3N-6, tables 8-3N-6A and 8-3N-6B of this article that are not listed in chapter 5 of this title or where the specific use standards differ from those standards found in chapter 5 of this title. These standards are in addition to the requirements of chapter 4 of this title. (Ord. 703, 2-10-2010)

8-3N-8-1: AMUSEMENT OR RECREATION FACILITY, OUTDOOR:

   A.   General Standards:
      1.   All structures or outdoor recreation areas shall maintain a minimum setback of twenty feet (20') from all abutting residential districts.
      2.   Any outdoor speaker system associated with the amusement or recreation facility shall comply with the noise regulations of section 5-13-3 of this Code.
      3.   All outdoor activities and events shall be scheduled so as to complete all activity before or as near to nine thirty o'clock (9:30) P.M. as practical. Illumination of the outdoor amusement or recreation facility shall not be permitted after ten o'clock (10:00) P.M. except to conclude a scheduled event that was in progress before ten o'clock (10:00) P.M. and circumstances prevented concluding before ten o'clock (10:00) P.M. All illumination shall be terminated no later than one (1) hour after conclusion of the event.
   B.   Golf Driving Range: Accessory sales and rental of golf equipment shall be allowed. The golf driving range shall be designed to protect abutting property and roadways from golf balls.
   C.   Swimming Pool: Any outdoor swimming pool shall be completely enclosed within a six foot (6') barrier that meets the requirements of the Ada County Building Code as set forth in title 7, chapter 2 of this Code. (Ord. 703, 2-10-2010; amd. Ord. 864, 2-21-2017)

8-3N-8-2: BAR, BREWPUB OR NIGHTCLUB:

   A.   The facility shall comply with all Idaho Code regulations regarding the sale, manufacturing, or distribution of alcoholic beverages.
   B.   The bar, brewpub, or nightclub shall not be located within five hundred feet (500') of a church or school property.
   C.   For properties abutting a residential district, no outside activity or event shall be allowed on the site, except as provided for in chapter 4, article L, "Temporary Use", of this title. (Ord. 703, 2-10-2010)

8-3N-8-3: BED AND BREAKFAST ESTABLISHMENT:

   A.   The minimum property size for a bed and breakfast establishment shall be one-half (1/2) acre.
   B.   Any such facility shall be an owner occupied dwelling. For the purposes of this subsection, an "owner" shall be defined as a person with a fifty percent (50%) or greater interest in the bed and breakfast establishment.
   C.   If remodeling an existing structure, the exterior appearance of the structure shall be that of a single-family dwelling. Fire escapes and other features may be added to protect public safety; however, structural alterations may not be made that would prevent future use of the structure as a single-family dwelling.
   D.   No more than ten (10) occupants (including, but not limited to, the owner, the owner's family, and any resident or nonresident employees) shall be permitted to occupy the facility at any one (1) time (daytime, evening, or night).
   E.   The maximum stay shall be two (2) weeks for any guest.
   F.   Only business signs referring solely to a principal permitted use of the bed and breakfast are permitted. (Ord. 703, 2-10-2010)

8-3N-8-4: BUSINESS PARK:

There are no additional standards for this specific use. (Ord. 703, 2-10-2010)

8-3N-8-5: CAR WASH:

   A.   All businesses providing self-service or drive-through car wash facilities shall identify the stacking lane and wash location on the master site plan.
   B.   If within the Mixed Use District, a car wash facility shall be allowed only as an accessory use to a gasoline or diesel fuel sales facility. The car wash facility shall be limited in capacity to a single vehicle.
   C.   A one hundred foot (100') separation shall be maintained between any car wash facility and any residential district.
   D.   Any outdoor speaker system associated with the car wash shall comply with the noise regulations of section 5-13-3 of this Code.
   E.   Vehicle stacking lanes shall be available on the property but outside the car wash facility entrance. Stacking lanes shall have sufficient capacity to prevent obstruction of the public right- of-way by patrons. Such stacking lanes shall be separate from areas required for access and parking. The stacking lanes shall not be located within ten feet (10') of any residential district. (Ord. 703, 2-10-2010; amd. Ord. 864, 2-21-2017)

8-3N-8-6: COMMUNITY CENTER:

All structures shall meet the minimum required setbacks for the applicable land use district. (Ord. 703, 2-10-2010)

8-3N-8-7: COMMUNITY INFORMATION CENTER:

There are no additional standards for this specific use. (Ord. 703, 2-10-2010)

8-3N-8-8: DRUGSTORE:

The applicant or owner shall secure and maintain the proper license(s) from the State of Idaho. (Ord. 703, 2-10-2010)

8-3N-8-9: DWELLING, ACCESSORY:

   A.   An accessory dwelling unit (ADU) shall not be larger than twenty percent (20%) of the lot area and the ADU shall not have more than one (1) bedroom. Where practical, the twenty percent (20%) size standard may be altered to accommodate logical expansions or internal conversions. Examples of this include, but are not limited to, the addition of a second floor to a detached garage or the separation of a basement as an accessory unit.
   B.   ADUs shall meet all of the dimensional requirements of the land use district and requirements of the Ada County Building Code as set forth in title 7, chapter 2 of this Code.
   C.   The design of the ADU shall be compatible with the existing neighborhood by taking into account height, bulk, and site location, and incorporating materials, colors and a design motif that is compatible with and complements the architectural theme and style of the principal dwelling unit. The principal and the ADU shall be designed to portray the character of a single family dwelling. Only one (1) entrance to the structure may be located on the front building elevation of the house unless multiple entrances are already in existence.
   D.   Off-street parking shall be provided as per section 8-4G-6 of this title, in addition to the required off-street parking for the principal permitted dwelling. The driveway apron (driveway space within the front yard setback) may be utilized for this requirement.
   E.   Input from adjacent property owners should be considered in the design and siting of an ADU in order to maintain privacy between adjacent housing units. (Ord. 703, 2-10-2010; amd. Ord. 864, 2-21-2017)

8-3N-8-10: DWELLING, LIVE/WORK:

   A.   The living space shall contain at least four hundred (400) square feet of gross floor area.
   B.   The living space shall include a bedroom, closet, bathroom and kitchen. The bedroom shall be for the exclusive use of the living space. All other spaces may be shared with the workspace.
   C.   The live/work unit shall meet all of the requirements of the Ada County Building Code as set forth in title 7, chapter 2 of this Code.
   D.   A minimum of eighty (80) square feet of outdoor open space shall be provided for each living space. This requirement can be satisfied through porches, patios, decks, and/or yards. Required property setback, landscaping, entryway and other access ways shall not count toward this requirement.
   E.   Off-street parking shall be provided as per section 8-4G-6 of this title, in addition to the required off-street parking for the dwelling.
   F.   The commercial space activities shall be compatible with residential use with respect to noise, smoke, vibration, smell, electrical interference, and fire hazard; and may include such uses as professional services and offices; and the creation, display and sale of art, craftwork, jewelry, fabrication of cloth goods; and similar activities.
   G.   The live/work unit shall comply with the design guidelines of the Dry Creek Ranch Comprehensive Plan.
   H.   The design of the live/work unit shall be compatible with the existing neighborhood by taking into account height, bulk, and site location; and incorporating materials, colors and a design motif that is compatible with and complements the architectural theme and style of the vicinity. (Ord. 703, 2-10-2010; amd. Ord. 864, 2-21-2017)

8-3N-8-11: FENCE, OPEN:

   A.   No fence, hedge, wall, latticework, or screen shall violate the "clear vision triangle" requirements at a street intersection.
   B.   No fence, wall, latticework, or screen shall be erected over three feet (3') in height within the required front yard.
   C.   No fence, wall, latticework, or screen on the perimeter boundary or within any required setback area shall exceed a height of six feet (6'), unless approved by a variance by the board or as part of an approved use.
   D.   Where any fence or wall is required by this title to protect adjacent properties, said fence or wall shall be kept free from advertising and graffiti and maintained in good repair. (Ord. 703, 2-10-2010; amd. Ord. 864, 2-21-2017)

8-3N-8-12: FENCE, SOLID:

   A.   No sight-obscuring fence, hedge, wall, latticework, or screen shall violate the "clear vision triangle" requirements at a street intersection.
   B.   No fence, wall, latticework, or screen shall be erected over three feet (3') in height within the required front yard.
   C.   No fence, wall, latticework, or screen on the perimeter boundary or within any required setback area shall exceed a height of six feet (6'), unless approved by a variance by the Board or as part of an approved use.
   D.   Where any sight-obscuring fence or wall is required by this title to protect adjacent properties, said fence or wall shall be kept free from advertising and graffiti and maintained in good repair. (Ord. 703, 2-10-2010; amd. Ord. 864, 2-21-2017)

8-3N-8-13: HEALTH CLUB FACILITY:

The facility shall comply with all County and State regulations relative to such use. (Ord. 703, 2-10-2010)

8-3N-8-14: HOSPITAL:

   A.   The use shall have frontage on an arterial or collector street.
   B.   Accessory retail uses including, but not limited to, retail shops, food or beverage service, and personal service shops, may be allowed if designed to serve patrons of the hospital and their visitors only.
   C.   The use shall comply with the Flood Hazard Overlay District as set forth in chapter 3, article F of this title. (Ord. 703, 2-10-2010)

8-3N-8-15: HOSPITAL, LARGE ANIMAL:

The facility shall comply with all County and State regulations relative to such use. (Ord. 703, 2-10-2010)

8-3N-8-16: HOSPITAL, SMALL ANIMAL:

The facility shall comply with all County and State regulations relative to such use. (Ord. 703, 2-10-2010)

8-3N-8-17: PUBLIC OR QUASI-PUBLIC USE:

   A.   Minimum Setbacks; Compatibility: All structures shall meet the minimum required setbacks for the applicable base district, except within a residential district where there shall be a minimum setback of thirty five feet (35') from any public street and twenty five feet (25') from any other property line. Structures shall be designed and constructed to be compatible with the surrounding properties.
   B.   Public Recreation Facilities: The standards as set forth for amusement and recreation facilities shall apply for all public recreation facilities.
   C.   Storm Drainage And Storm Detention Facilities: A storm drainage facility and/or storm detention facility that are an accessory use to a roadway on the same property shall be exempt. For the purposes of this standard, the contiguous parcel regulations of section 8-4A-8 of this title shall not apply.
   D.   Underground Utilities: Underground utilities within an easement or within a public street right-of-way shall not require additional approval.
   E.   Power Distribution Facilities:
      1.   Electric distribution lines shall be principal permitted uses. Master site plan approval is not required.
      2.   Electric sub-transmission lines shall be principal permitted uses. Master site plan approval shall be required.
      3.   Electric transmission lines and substations shall require conditional use approval.
      4.   All electric transmission, sub-transmission, and distribution line rights-of-way shall be exempt from the landscaping regulations of chapter 4, article F of this title.
      5.   Electric substations and other utility structures shall be deemed outdoor storage areas and shall meet the standards in section 8-5-3-78 of this title.
      6.   Towers for the purpose of communicating from the substation to remote devices shall be deemed an accessory use to an approved substation, provided that the pole and antenna are no taller than the existing towers.
      7.   All wire fences, metal structures, and metal objects shall be grounded as required by section 8-4A-20 of this title. (Ord. 703, 2-10-2010; amd. Ord. 864, 2-21-2017)

8-3N-8-18: RESTAURANT OR EATING PLACE:

No additional standards are required for this specific use. (Ord. 703, 2-10-2010)

8-3N-8-19: RESTAURANT, OUTDOOR:

No additional standards are required for this specific use. (Ord. 703, 2-10-2010)

8-3N-8-20: RETAIL, LIFESTYLE CENTER:

No additional standards are required for this specific use. (Ord. 703, 2-10-2010)

8-3N-8-21: RETAIL SALES, RELATING TO AN APPROVED USE:

Accessory retail sales shall be allowed for an approved commercial use. The area devoted to retail sales shall not occupy more than forty percent (40%) of the gross floor area of the approved use. (Ord. 703, 2-10-2010)

8-3N-8-22: SCHOOL, PUBLIC OR PRIVATE:

   A.   Locations for public school sites shall be determined in conformance with the Dry Creek Ranch Land Use Map. The following location criteria shall apply unless in conflict with the applicable comprehensive plan:
      1.   Elementary schools shall take access off a public street, unless otherwise approved by the applicable school district and ACHD.
      2.   No school shall be located in a floodplain or adjacent to a hazardous land use.
   B.   All structures shall meet the minimum setbacks of the Institutional/School Site Land Use District.
   C.   Accessory uses including, but not limited to, daycare centers, community services, social services, meeting facilities for clubs and organizations, and administrative offices for the individual school facility may be allowed. (Ord. 703, 2-10-2010; amd. Ord. 864, 2-21-2017)

8-3N-8-23: SCHOOL, VOCATIONAL OR TRADE:

No vocational or trade school shall be located in a floodplain or adjacent to a hazardous land use. (Ord. 703, 2-10-2010)

8-3N-8-24: SCHOOL, UNIVERSITY:

No university school shall be located in a floodplain or adjacent to a hazardous land use. (Ord. 703, 2-10-2010)

8-3N-8-25: SHOPPING CENTER, COMMUNITY COMMERCIAL:

(Ord. 703, 2-10-2010; rep. by Ord. 864, 2-21-2017)

8-3N-8-26: SHOPPING CENTER, CONVENIENCE COMMERCIAL:

No additional standards are required for this specific use. (Ord. 703, 2-10-2010)

8-3N-8-27: SHOPPING CENTER, NEIGHBORHOOD COMMERCIAL:

No additional standards are required for this specific use. (Ord. 703, 2-10-2010)

8-3N-8-28: SHOPPING CENTER, REGIONAL COMMERCIAL:

(Ord. 703, 2-10-2010; rep. by Ord. 864, 2-21-2017)

8-3N-8-29: STABLE, PRIVATE:

No additional standards are required for this specific use. (Ord. 703, 2-10-2010)

8-3N-8-30: WATER TOWER:

No additional standards are required for this specific use. (Ord. 703, 2-10-2010)

8-3N-8-31: WINERY:

   A.   The facility shall comply with all Idaho Code regulations regarding the sale, manufacturing, or distribution of alcoholic beverages.
   B.   The winery shall not be located within five hundred feet (500') of a church or school property.
   C.   For properties abutting a residential district, no outside activity or event shall be allowed on the site, except as provided for in chapter 4, article L, "Temporary Use", of this title. (Ord. 703, 2-10-2010)

8-3N-9: OPEN SPACE:

   A.   Purpose: The purpose of this article is to encourage well- designed open space within the Dry Creek Ranch Planned Community and to provide standards for dedicated open space areas as specified in the Dry Creek Ranch Comprehensive Plan and/or uses approved as part of a development application.
   B.   Applicability: The following regulations shall apply to open space lots created within the Dry Creek Ranch Planned Community.
   C.   General Regulations:
      1.   Plat Approval: In approving each preliminary plat within Dry Creek Ranch, the Board shall determine that the plat is in accordance with the open space plan as was approved with the Dry Creek Ranch Comprehensive Plan with consideration of the flexibility provisions of this article and the plan.
      2.   Allowed Open Space Uses: Allowable uses on lands designated as in the "Park District" or "Natural Open Space District" shall include the uses set forth in section 8-3N-6, table 8-3N-6B of this article.
      3.   Restrictions For Permanent Open Space: All open space lots in the "Park District" or "Natural Open Space District" shall be dedicated open space protected by either a deed restriction or a conservation easement prepared subject to the regulations of Idaho Code section 55-2105.
   D.   Design Standards: The provision, development and use of open space shall be in conformance with this article and the Dry Creek Ranch Comprehensive Plan.
      1.   Consistency: The design shall be consistent with the Dry Creek Ranch Comprehensive Plan.
      2.   Accessibility: The dedicated open space shall be easily accessible to residents of Dry Creek Ranch as deemed appropriate by the Dry Creek Ranch Wildlife Management Plan.
      3.   Roadways: The number of private or public roadways that divide the dedicated open space shall be limited to those necessary for proper traffic circulation, and the roadways shall not detract from the efficient use of the open space.
      4.   Structures: The dedicated open space shall be free of all structures, except those that enhance the use of the dedicated open space including, but not limited to: structures related to outdoor recreational use; structures of historic and/or cultural significance, educational buildings; way-finding or informational signage; parking facilities; well houses; and utility infrastructure and facilities.
      5.   Stormwater Basins: Stormwater retention or detention basins designed and approved as part of the stormwater management system for the property may be located within the dedicated open space.
      6.   Impervious Surface: Please see section 8-3N-5, table 8-3N-5D of this article for maximum coverage for impervious surfaces per land use district.
      7.   Additional Standards For Open Space In The "Park District" Or "Natural Open Space District":
         a.   Width: The dedicated open space shall be an appropriate width as determined by the Director and may include natural open space, a trail system, pathway network, greenways, parkways, pocket parks, recreational fields or pocket parks for active or passive recreational use or linear open spaces.
         b.   Neighboring Properties: The dedicated open space shall be connected to open space areas on neighboring properties wherever possible including provisions for pedestrian walkways to create linked walkway or pathway systems.
         c.   Parking Spaces: The dedicated open space shall have the required number of automobile and bicycle parking spaces as set forth in this title.
            (1)   Parking areas shall have safe and convenient access from an abutting public street or other rights-of-way or easements capable of accommodating pedestrian, bicycle or vehicle traffic.
            (2)   Required parking areas for outdoor amusement or recreation facilities may be included in calculating the amount of dedicated open space.
         d.   Alternative Open Space Plan: Following recommendations from the DRC, the Director may approve, or recommend approval of, an alternative open space plan when the overall design as proposed by the applicant, meets or exceeds the requirements of this article and the Dry Creek Ranch Comprehensive Plan and shall not be detrimental to the public health, safety and welfare. (Ord. 703, 2-10-2010; amd. Ord. 864, 2-21-2017)

8-3N-10: SIGN REQUIREMENTS:

Signs are allowed throughout the Dry Creek Ranch Planned Community and shall be in conformance with this article, the Dry Creek Ranch Comprehensive Plan, and the provisions of chapter 4, article I of this title. (Ord. 703, 2-10-2010; amd. Ord. 864, 2-21-2017)

8-3N-11: ON- AND OFF-STREET PARKING:

All parking shall meet Federal Americans with Disabilities Act (ADA) requirements and shall be in accordance with the provisions of chapter 4, article G of this title, except as follows:
   A.   Improvements:
      1.   Except as otherwise provided in this section, all off-street parking areas shall be improved as an approved pavement design and parking layout prepared by a licensed civil engineer in the State of Idaho. This standard shall not apply to temporary uses, the education center, or temporary construction offices.
      2.   When a bumper overhangs onto a landscape area, with properly designed ground coverage or lawn area, the parking stall dimensions may be reduced two feet (2') in length. If parking is adjacent to the sidewalk, the parking dimensions may also be reduced by two feet (2') in length if the width of the sidewalk is increased by two feet (2').
      3.   Parking spaces and access lanes shall be marked including handicapped symbols and signs per ADA and the Manual on Uniform Traffic Control Devices standards.
      4.   All lighting provided to illuminate a parking area shall comply with the lighting standards provided in chapter 4, article H of this title and the Dry Creek Ranch Comprehensive Plan.
   B.   Alternative Plan:
      1.   Following recommendation from the DRC, the Director may approve, or recommend approval of, an alternative off-street parking and loading plan, when the overall design, as proposed by the applicant, meets or exceeds the intent and the requirements of this article and shall not be detrimental to the public health, safety, and welfare.
   C.   Required Number Of Off-Street Parking: See section 8-4G-6 of this title.
The required parking for clubs, lodges and social halls may be provided by on-street parking located within one-eighth (1/8) mile of the lot on which the club, lodge, or social hall is located. (Ord. 703, 2-10-2010; amd. Ord. 864, 2-21-2017)

8-3N-12: STANDARDS FOR ENERGY AND WATER CONSERVATION:

Development standards for energy and water conservation shall be consistent with the Dry Creek Ranch Design Guidelines, as located within the Dry Creek Ranch Comprehensive Plan.
   A.   Energy Conservation: All new construction shall meet or exceed the requirements of the Energy Conservation Code as set forth in title 7, chapter 2 of this Code.
   B.   Water Conservation: All landscaping shall comply with the water conservation requirements of section 8-3N-17 of this article. (Ord. 703, 2-10-2010)

8-3N-13: GRADING REQUIREMENTS:

All grading shall be in conformance with this article and title 7, chapter 2, "Building Codes", of this Code. Grading on slopes greater than fifteen percent (15%) shall comply with article H of this chapter. (Ord. 703, 2-10-2010; amd. Ord. 864, 2-21-2017)

8-3N-14: DESIGN STANDARDS FOR STRUCTURES AND SITE IMPROVEMENTS:

The design standards for structures and site improvements shall be in conformance with this article and the Dry Creek Ranch Comprehensive Plan. (Ord. 703, 2-10-2010)

8-3N-15: FRONTAGE AND ACCESS:

Development shall only be approved on a property that meets the minimum dimensional standards of section 8-3N-5, table 8-3N-5D of this article. Access shall be taken from the required frontage unless the property also has frontage on an alley, an approved private road, or an approved common driveway.
   A.   Alleys:
      1.   Alleys may be permitted in all land use districts within the Dry Creek Ranch Planned Community.
      2.   The width of an alley shall typically be twenty feet (20'), but shall not be less than sixteen feet (16') and shall be paved.
      3.   Alley intersections and sharp changes in alignment should be avoided, but where necessary, corners will be cut off sufficiently to permit safe vehicular movement.
      4.   Dead-end alleys shall be permitted, with written approval from the applicable fire district.
      5.   Alleys may count as required lot frontage in all residential zones.
      6.   Alleys may be public or private. If private, the alley must be owned and maintained by the Dry Creek Ranch Property Owners' Association.
      7.   An alley may intersect an alley.
      8.   An alley may curve and/or turn.
   B.   Common Driveways:
      1.   Common driveways may be permitted in all land use districts within the Dry Creek Ranch Planned Community.
      2.   A three foot (3') wide landscaped area shall be constructed and maintained between the common driveway and lots which do not utilize the common driveway.
      3.   The street frontage requirement of each flag lot served by the common driveway may be reduced to five feet (5').
      4.   All individual private driveways, on lots that are contiguous to the common driveway, shall originate from the common driveway, not the public street, unless existing site conditions preclude this design. On arterials and collector street, all lots or parcels within the subdivision that abut the lot or parcels that have reduced street frontage and contain the common driveway shall take access from the common driveway to minimize access points, unless the parking for an existing dwelling cannot be reasonably reconfigured to take access from the common driveway.
      5.   A perpetual ingress/egress easement and maintenance agreement shall be recorded and provided with the final plat application. The easement shall be delineated on the final plat or recorded by a separate document.
      6.   The common driveway and all necessary support utilities shall be constructed concurrently with public improvements. (Ord. 703, 2-10-2010; amd. Ord. 864, 2-21-2017)

8-3N-16: EASEMENTS:

Easements shall be provided for utilities, drainage and irrigation outside of public street rights-of-way as needed. The width of said easement will be determined by the land use and negotiated with the entity(ies) responsible for the construction and/or maintenance of the utility. (Ord. 703, 2-10-2010)

8-3N-17: LANDSCAPING:

   A.   General Requirements:
      1.   All landscaping shall be in conformance with this article, and the Dry Creek Ranch Comprehensive Plan.
      2.   All landscape areas shall be served with an automatic underground irrigation system with the exception of those lots in the hillside portions of Dry Creek Ranch. The irrigation system shall comply with the following design criteria:
         a.   The irrigation system shall be designed to provide appropriate spacing to avoid overspray onto impervious surfaces such as sidewalks, driveways, and parking areas.
         b.   Sprinkler heads irrigating lawn or other high-water-demand areas shall be circuited so that they are on a separate zone or zones from those irrigating trees, shrubs, or other reduced- water-demand areas.
      3.   All developed lots shall use low water and drought tolerant grasses and shrubs, including xeriscape where appropriate.
      4.   Non-potable water shall be the first source of irrigation water for common area irrigation where available.
      5.   All non-residential development shall be provided with a pressurized irrigation system.
      6.   Landscape irrigation systems shall be designed to meet the needs of the plants in the landscape.
      7.   Landscape irrigation systems shall be equipped with automatic controller with operational flexibility to adjust for seasonal water conservation and temporary water shortage restrictions.
      8.   Landscape street buffer requirements shall be as follows:
         a.   Abutting State Highway 55: Fifty feet (50');
         b.   Abutting minor and major arterials: Thirty feet (30');
         c.   Abutting collectors: Twenty feet (20').
      9.   No final plat shall be approved until such time as the applicant has provided a landscape plan to Ada County, for review and approval. In addition to those standards set forth in chapter 4, article F of this title, the landscape plan shall contain the following:
         a.   The location, size, and type of all proposed landscaping materials (including specific references as to the species of plant materials), and verification that minimum landscaping requirements have been satisfied. All plants shall be shown at seventy five percent (75%) mature growth.
         b.   Existing vegetation to be saved shall be identified on the landscaping plan along with protection measures to be used during grading and construction. (Ord. 703, 2-10-2010; amd. Ord. 864, 2-21-2017)

8-3N-18: AMENDMENTS:

Amendments to this article shall be in accordance to 8-7-3 of this title. (Ord. 703, 2-10-2010)