The Supplemental Use Regulations set forth additional standards for certain uses located within the various zoning districts. These regulations recognize that certain use types have characteristics that require additional controls in order to protect public health, safety, and welfare. The regulations contained in this Article pertain both to uses allowed by right within various zoning districts; and to uses that require approval as Conditional Uses by the Board of Adjustment. Nothing contained in this section shall limit the right of the Board of Adjustment to impose additional conditions on developments seeking Conditional Use approval.

Nothing in these provisions shall relieve any property owner or user from satisfying any condition or requirement associated with a previous approval, special permit, variance, development permit, or other permit issued under any local, State, or Federal ordinance or statute.

1.   Horticulture and Crop Production: Retail Sales. Retail operation of garden centers or roadside stands associated with a primary agricultural use may be permitted in the AG District, subject to the following requirements:

   A.   Garden Centers:

      (a)   A garden center is a building or premises used for the retail sale of plant materials or items useful in the growing or display of lawns, gardens, and plants.

      (b)   Garden centers must conform to all site development regulations for the zoning district.

      (c)   Any garden center adjacent to a residential district must maintain a 20-foot landscaped bufferyard, consistent with the standards established in Section 804.

   B.   Roadside Stands

      (a)   A roadside stand is a facility used on a temporary or seasonal basis for the retail sale of produce grown largely on adjacent or surrounding agricultural lands.

      (b)   A roadside stand may be located within a required front yard but no closer than 40 feet to the edge of a traveled roadway.

      (c)   A roadside stand may operate for a maximum of 180 days in any one year.

2.   Animal Production.

   A.   No commercial poultry or livestock operation shall be located within 100 feet of any residential or commercial zoning district.

   B.   Breeding and raising of small animals and fowl, such as birds, rabbits, chinchilla, and hamsters is permitted in the SR District, provided that any building housing such animals shall be at least 100 feet from any property line and 25 feet from any dwelling unit on the site.

   C.   No animals with measurable odors shall be raised for commercial purposes within the city limits.

3.   Commercial Feedlots. No commercial feedlots shall be established within the zoning jurisdiction of the City of Mount Vernon.

1.   Zero-Lot Line Single-Family Detached Residential. Within a common development, one interior side yard may be equal to zero for single-family detached residential use, subject to the following additional regulations:

   A.   The side yard opposite to the zero yard must equal at least twice the normal required minimum side yard and must by itself comply with all side yard requirements for the zoning district.

   B.   The normal side yard setback requirement must be maintained adjacent to any lot with an existing structure not within the common development; or not otherwise designated for zero lot line use.

   C.    An easement for maintenance of the zero lot line facade is filed with the Linn County Register of Deeds and the City Clerk at the time of application for a building permit.

2.   Single-Family Attached. When permitted, the minimum side yard opposite the common wall shall be equal to twice the normal required side yard.

3.   Townhouse Residential. Where permitted, townhouse residential is subject to the following regulations:

   A.   The minimum width for any townhouse lot sold individually shall be 25 feet, except within an approved creative subdivision.

   B.   Coverage percentages are computed for the site of the entire townhouse common development.

4.   Two-Family Residential.

   A.   The second dwelling unit shall be located to the rear of the site and shall be separated from the front dwelling unit by a minimum of 25 feet.

   B.   The second dwelling unit shall be served by a driveway at least ten feet in width, leading from a public street adjacent to the lot.

5.   Multi-Family Residential. Multi-family residential development must comply with the following requirements for dispersion throughout the City.

   A.   Any new multiple-family development containing from three to eight residential units (small-scale Multi-Family Residential) must be located at least 300 feet from any pre-existing multi-family development.

   B.   Any new multi-family development containing over 8 residential units (large-scale Multi-Family Residential) must be located an additional 35 feet for each additional unit over 8 from any pre-existing multi-family development.

   C.   Unit limitations do not apply to the Retirement Residence use type.

6.   Uptown Residential Uses in the TC District. Uptown Residential uses are permitted in the TC District subject to the following conditions:

   A.   Uptown Residential uses are permitted in the TC District only on levels above street level except that a unit specifically designed for occupancy by disabled residents may be developed at street level, subject to approval by the Board of Adjustment.

   B.   Residents of units must be informed by the owner of the building that lawful commercial uses have priority over residential uses.

   C.   All upper level apartments must have two separate means of egress.

   D.   The internal living space of each unit must have a minimum of 576 square feet.

   E.   One parking space marked and reserved for tenants must be provided for each unit.

7.   Group Residential. Where permitted, Group Residential use must comply with the following requirements:

   A.   Within the SR, or TR districts, no more than six persons in addition to the family of the owner shall be permitted to reside in an owner-occupied dwelling unit. No more than five persons shall be permitted to reside in a non owner-occupied dwelling unit.

   B.   Within the HR, or UC districts, no more than ten persons in addition to the family of the owner shall be permitted to reside in an owner-occupied dwelling unit. No more than seven persons shall be permitted to reside in a non owner-occupied dwelling unit.

   C.   A minimum of 250 square feet must be provided in the dwelling unit for each resident.

8.   Mobile Home Parks. The HR High Density Residential District permits mobile home residential use configured in a Mobile Home Park or Mobile Home Subdivision. Following the effective date of this Ordinance, no mobile home shall be located outside of a Mobile Home Park or Mobile Home Subdivision unless said mobile home is placed on a permanent foundation and converted to real property (see Chapter 146 of this Code of Ordinances). A Mobile Home Park is subject to approval as a Conditional Use by the Board of Adjustment and compliance with the following regulations:

   A.   Certification. A certification of compliance with all ordinances and regulations regarding mobile home licensing, zoning, health, plumbing, electrical, building, fire protection and any other applicable requirements shall be issued by the Zoning Administrator prior to the occupancy of any new Mobile Home Park or any expansion of an existing Mobile Home Park.

   B.   Minimum and Maximum Area. A Mobile Home Park shall be considered to be one zoned lot. The contiguous area of a Mobile Home Park shall have a minimum of 5 acres and a maximum of 15 acres.

   C.   Density Requirements.

      (a)   The minimum gross site area per dwelling unit shall be 7,200 square feet.

      (b)   The minimum size of an individual mobile home space shall be 4,500 square feet for single-wide mobile home units and 6,000 square feet for double-wide mobile home units.

      (c)   Each mobile home space shall have a width of at least 40 feet wide and a length of at least 75 feet.

   D.   Site Development Standards.

      (a)   Setbacks: Each Mobile Home Park shall have a minimum perimeter setback of 35 feet from adjacent non-residential uses and 50 feet from adjacent residential uses. No space for a dwelling unit or any other structure shall be permitted in the required setback.

      (b)   Setback landscaping: All area contained within the required setbacks except sidewalks and private drives shall be landscaped and screened in conformance with Article 8 of this Ordinance. Screening shall be provided in conformance with Article 8 for any common property line with another non-residential use.

      (c)   Impervious Coverage: Impervious coverage for a Mobile Home Park shall not exceed 50 percent of the total site area.

      (d)   Open Space: Each Mobile Home Park shall provide a minimum of 400 square feet of open recreational space per unit. Such space shall be provided at a central location accessible from all parts of the park by pedestrians. Required perimeter setbacks or buffers shall not be credited toward the fulfillment of this requirement.

      (e)   Separation Between Mobile Home Units: The minimum separation between a mobile home unit and attached accessory structure and any other mobile home units and/or accessory structure shall be 20 feet.

      (f)   Separation and Setbacks for Accessory Buildings: An accessory building on a mobile home space maintain a minimum rear and side yard setback of five feet. A minimum distance of ten feet shall be provided between any mobile home and an unattached accessory building.

   E.   Street Access and Circulation Requirements.

      (a)   Access to Public Street: Each Mobile Home Park must abut and have access to a dedicated public street with a right-of-way of at least 60 feet. Direct access to a mobile home space from a public street is prohibited.

      (b)   Vehicular Circulation: The Mobile Home Park must provide interior vehicular circulation on a private internal street system. Minimum interior street width shall be 27 feet. The street system shall be continuous and connected with other internal and public streets; or shall have a cul-de-sac with a minimum diameter of 90 feet. No such cul-de-sacs may exceed 300 feet in length.

      (c)   Separation between Units and Circulation Areas: The minimum distance between a mobile home unit and any attached accessory structure and the pavement of an internal street or parking area shall be ten feet.

      (d)   Sidewalks: Each Mobile Home Park shall provide a sidewalk system to connect each mobile home space to common buildings or community facilities constructed for the use of its residents; and to the fronting public right of way. Sidewalk width shall be at least four feet.

      (e)   Street and Sidewalk Standards: All internal streets and sidewalks shall be hard-surfaced. Electric street lighting is required along all internal streets.

      (f)   Parking Requirements: Each Mobile Home Park must provide at least two off-street parking stalls for each mobile home space.

   F.   Tornado Shelters: Underground tornado shelters shall be provided in the Mobile Home Park. Such shelter or shelters shall be built according to the recommendations of the Civil Defense authority and be large enough to meet the specific needs of the park and its residents.

   G.   Utilities.

      (a)   All Mobile Home Parks shall provide individual units and common facilities with an adequate, piped supply of water for both drinking and domestic purposes; and standard electrical service, providing at least one 120-volt and one 240-volt electrical service outlet to each mobile home space.

      (b)   Complete sanitary and sewer service shall be provided within each Mobile Home Park in accordance with the Subdivision Chapter of the Land Development Ordinance.

      (c)   Properly spaced and operating fire hydrants shall be provided for proper fire protection within each Mobile Home Park in accordance with the Subdivision Chapter of the Land Development Ordinance and other applicable city codes and public improvement design standards.

      (d)   All electric, telephone, gas, and other utility lines shall be installed underground.

   H.   Financial Responsibility: Each application for a Mobile Home Park shall include a demonstration by the developer of financial capability to complete the project; and a construction schedule.

   I.   Completion Schedule: Construction must be begin on any approved Mobile Home Park within one year of the date of approval by the Planning and Zoning Commission. Such construction shall be completed within two years of approval, unless otherwise extended by the Commission.

   J.   All other uses and provisions of the Mount Vernon Mobile Home Park regulations are incorporated herein by reference. These provisions include tie-down and other structural requirements included in the Mount Vernon Municipal Codes.

9.   Mobile Home Subdivisions. Mobile Home Subdivisions shall be developed in accordance with all standards and requirements set forth in the zoning and subdivision ordinances of Mount Vernon. Site development regulations shall be the same as those required in the SR Zoning District. Each mobile home shall be considered a single-family detached residential unit for the purpose of determining applicable development regulations.

   A.   Mobile home units within Mobile Home Subdivisions shall be built in accordance with the minimum design standards of the US Department of Housing and Urban Development and display a certification of such compliance.

   B.   Mobile Home Subdivisions shall provide tornado shelter facilities as required by Section 603-8-F.

1.   Community Centers and Clubs. Clubs located adjacent to residential uses shall maintain a bufferyard of not less than fifteen feet along the common boundary with such residential use.

2.   Day Care. Limited Day Care uses are permitted on residential lots in the SR, NR, TR, and HR zoning districts, and may be operated by the occupant of a dwelling unit on the site. Day care facilities are permitted by Conditional Use permit in the LI Limited Industrial Zoning District only if incidental to a permitted primary use.

3.   Group Care Facilities and Group Homes. Each group care facility or group home must be validly licensed by either the State of Iowa or the appropriate governmental subdivision.

1.   Auto Repair, Equipment Repair, and Body Repair. Where permitted in commercial districts, all repair activities must take place within a completely enclosed building. Outdoor storage is permitted only where incidental to Auto Repair and Body Repair, provided that such storage is completely screened so as not to be visible from residential areas or public rights-of-ways. Screening is subject to provisions of Article 8 of this ordinance. Any spray painting must take place within structures designed for that purpose and approved by the Building Official.

2.   Auto Washing Facilities. Each conveyor operated auto washing facility shall provide 100 feet of stacking capacity per washing lane on the approach side of the washing structure and stacking space for two vehicles on the exit side. Each self-service auto washing facility shall provide stacking space for three automobiles per bay on the approach side and one space per bay on the exit side of the building.

3.   Automobile and Equipment Rental and Sales. All outdoor display areas for rental and sales facilities shall be hard-surfaced. Body repair services are permitted as an accessory use to automobile rental and sales facilities, provided that such repair services shall not exceed 25% of the gross floor area of the building.

4.   Bed and Breakfasts. Bed and Breakfasts permitted in the TC District must provide any sleeping facility only on levels above street level except that units specifically designed and reserved for occupancy by handicapped people may be located on the street level.

5.   Campgrounds. Each campground must maintain water supply, sewage disposal, and water and toilet facilities in compliance with all City ordinances; or, alternately, be limited to use by self-contained campers, providing their own on-board water and disposal systems, in addition to meeting the following:

   A.   Minimum Size: Each campground established after the effective date of this Ordinance shall have a minimum size of one acre.

   B.   Setbacks: All campgrounds shall maintain a 50-foot front yard setback and a 25-foot bufferyard from all other property lines.

6.   Convenience Storage. When permitted in the AG, GC, LI, and LC Districts, convenience storage facilities shall be subject to the following additional requirements:

   A.   The minimum size of a convenience storage facility shall be one acre.

   B.   Activities within the facility shall be limited to the rental of storage cubicles and the administration and maintenance of the facility.

   C.   All driveways within the facility shall provide a paved surface with a minimum width of 25 feet.

   D.   All storage must be within enclosed buildings and shall not include the storage of hazardous materials.

   E.   No storage buildings may open into required front yards.

   F.   Facilities must maintain landscaped bufferyards of 35 feet adjacent to any public right-of-way and 20 feet adjacent to other property lines, unless greater setbacks are required by Article 8.

7.   Restaurants. Restaurants in the LC District that include the accessory sale of alcoholic beverages require approval of a Conditional Use Permit, as set forth in Article 13.

8.   Restricted Businesses. Restricted businesses are not permitted within the zoning jurisdiction of the City of Mount Vernon.

1.   Resource Extraction. Resource extraction, where permitted, is subject to the following additional requirements:

   A.   Erosion Control: A resource extraction use may not increase the amount of storm run-off onto adjacent properties. Erosion control facilities, including retention and sediment basins, are required of each facility, if necessary, to meet this standard.

   B.   Surface Drainage: The surface of the use may not result in the collection or ponding of water, unless specifically permitted by the City Council.

   C.   Storage of Topsoil: Topsoil shall be collected and stored for redistribution following the end of the operation.

   D.   Elimination of Hazards: Excavation shall not result in a hazard to any person or property. The following measures are required:

      (a)   Restoration of slopes to a gradient not exceeding 33% as soon as possible.

      (b)   Installation of perimeter safety screening.

      (c)   Installation of visual screening adjacent to any property within a residential or public use district.

   E.   Restoration of Landscape: The topography and soil of the resource extraction site shall be restored and stabilized within nine months of completion of the operation. The site shall be seeded, planted, and contoured in a way that prevents erosion. Alternately, the site may be used as a lake or body of water, subject to approval by the City Council with the recommendation of the City Council and the Department of Natural Resources.

2.   Salvage Services.

   A.   Screening:

      (a)   The perimeter of each new facility shall be fully enclosed by opaque, freestanding fencing or screen walls. Minimum height of this enclosure shall be ten feet. Any such enclosure shall be constructed behind required landscaped bufferyards.

      (b)   Each existing salvage services facility shall be screened as provided above within one year of the effective date of this Ordinance.

   B.   Storage of materials within any salvage services facility may not be higher than the height of the surrounding screen fence or wall.

   C.   No Salvage Services use may be established within 300 feet of the nearest property line of a residential or public use zoning district.

The following performance standards apply to all industrial uses permitted within an LI Limited Industrial zoning district:

1.   Physical Appearance. All operations shall be carried on within an enclosed building except that new materials or equipment in operable condition may be stored outside. Normal daily inorganic wastes may be stored outside in containers, provided that such containers are not visible form the street.

2.   Fire Hazard. No operation shall involve the use of highly flammable gases, acid, liquids, or other inherent fire hazards. This prohibition shall not apply to the normal use of heating or motor fuels and welding gases when handled in accordance with the regulations of Linn County and the City of Mount Vernon.

3.   Maximum Permitted Sound Levels Adjacent to Residential Zoning Districts. No operation in the LI district shall generate sound levels in excess of those specified in Table 608-A at the boundary of a residential district. All noises shall be muffled so as not to be objectionable because of intermittence, beat frequency, or shrillness.

4.   Sewage and Wastes. No operation shall discharge into a sewer, drainage way, or the ground any material which is radioactive, poisonous, detrimental to normal sewer plant operation, or corrosive to sewer pipes and installations.

5.   Air Contaminants. No material may be discharged into the air from any source in such quantity as to cause injury, detriment, nuisance, or annoyance to any considerable number of people or to the public in general; or to endanger the health, comfort, or safety of any considerable number of people or to the public in general; or to damage other businesses, vegetation, or property.

6.   Odor. The emission of odors determined by the Planning and Zoning Commission to be obnoxious to most people shall be prohibited. Such odors shall be measured at the property line of the operation.

7.   Gases. No release of noxious or poisonous gases shall be permitted except as provided in this section. Measurements of sulfur dioxide, hydrogen sulfide, or carbon monoxide shall not exceed 5 parts per million taken at the property line of the operation.

8.   Vibration. All machines shall be mounted to minimize vibration. No measurable vibration shall occur at the property line of the operation which exceeds a displacement of 0.003 inch.

9.   Glare and Heat. All glare generated by a use shall be shielded or directed so as not to be visible at the property line of the operation. No heat may be generated from an operation that raises the air temperature at the property line of the operation by more than five degrees Fahrenheit above the ambient air temperature.

10.   Storage of Chemical Products. If allowed by Special User Permit, any above or below ground storage of liquid petroleum products or chemicals of a flammable or noxious nature shall not exceed 150,000 gallons when stored on one lot less than one acre. Such storage shall not exceed 25,000 gallons in any one tank. Storage of liquid petroleum products or chemicals of a flammable or noxious nature in excess of 25,000 gallons shall be located at least 50 feet from any structure intended for human habitation and at least 200 feet from any Residential, Office, or Commercial zoning district.

The following displays the maximum permitted sound levels that may be generated by uses in the GC, BP, or LI zoning districts where adjacent to residential zoning districts. All measurements shall be taken at or within the boundary between the originating district and the adjacent residential zoning district with a sound level meter meeting ANSI specifications for a Type II or better general purpose sound level meter. The A-weighted response shall be used.

 

 

609   LANDFILLS.

1.   Compliance with Codes. Each landfill must comply with all relevant city, county, State, or Federal codes and statutes.

2.   Prevention of Hazards. No facility shall present a hazard to surrounding residents or properties.

3.   Drainage and Water Supply. No landfill may modify or prevent the flow of major natural drainage ways within the jurisdiction of the City of Mount Vernon. Landfills shall not produce a measurable increase in pollution in any public water-based recreational facility or in any waterway or well that is a part of a public or private water supply.

4.   Minimum Separation from Residential Uses. No non-putrescible landfill may be established within 300 feet of a developed residential or public use. No landfill involving the disposal of putrescible or septic wastes shall be established within one-fourth mile of any residential, public, or commercial zoning district; or any State of Federal Highway.

5.   Restoration of Site. The site of any landfill must be restored, stabilized, planted, and seeded within six months after the end of the operation. Dissipation of waste products must be accomplished in a manner approved by the State of Iowa’s Department of Natural Resources.

6.   Toxic Waste. The disposal of hazardous, toxic, or radioactive wastes as defined by the Federal Environmental Protection Agency shall be prohibited within the City of Mount Vernon and its extra-territorial jurisdiction.

1.   Accessory Dwelling Units (ADU). ADUs that are allowed as a conditional use are subject to the following conditions:

   A.   Type. ADUs may be classified as one of the following:

      (a)   Internal. A dwelling unit that is located wholly within the primary structure without expansion of the footprint (e.g. basement or attic units).

      (b)   Attached. A dwelling unit that is considered part of the primary structure but results in an expansion of the primary structure's footprint.

      (c)   Detached. A dwelling unit that is separate from the primary structure (e.g. garage apartment or standalone structure).

   B.   Standards. ADUs shall comply with the following use-specific standards:

      (a)   One detached or one attached or internal ADU is permitted per lot.

      (b)   The ADU must be a complete, separate dwelling unit that functions independently from the principal use. It must contain its own kitchen and bathroom facilities and a separate exterior entrance, which, for an internal or attached ADU, may not be on the primary facade.

      (c)   Unless specifically addressed in this section, ADUs shall be subject to the regulations for a structure on the underlying zone district with regard to lot and bulk standards (e.g., height, setback/yard requirements, building coverage).

      (d)   The maximum size of an ADU may be no more than the footprint of the primary structure or 800 square feet, whichever is less.

      (e)   One off-street parking space is required for each ADU.

      (f)   ADUs may only be built on the same lot as the primary structure and shall be place on and secured to a permanent frost-free perimeter foundation.

      (g)   The owner of the property on which an ADU is located must occupy at least one of the dwelling units on the premises as the permanent legal resident. The ADU and the principal use must be under the same ownership.

      (h)   Mobile homes, recreational vehicles, travel trailers, and any other wheeled or transportable structure shall not be used as ADUs.

      (i)   An existing accessory structure whose height or setback(s) does not meet the requirements for a dwelling in the zone district may be converted into an ADU, but the structure may not be altered in any manner that would increase the degree of non-compliance.

      (j)   Home occupations may be permitted in an ADU as required in this section. Allowable conditions will be calculated for one dwelling unit except for floor area, which may be based on allowable floor area for all permitted dwellings.

      (k)   ADUs shall not be considered for the site area per housing unit calculations.

      (l)   The ADU must be designed so that the appearance of the building remains that of an allowed use within that zone, and any new entrances, exterior finish materials, trim, windows, and eaves must visually match the principal use.

2.    Home-Based Businesses/Home Occupations. Home-based businesses and home occupations are permitted as an accessory use in residential units subject to the following conditions:

   A.    External Effects:

      (a)   There shall be no change in the exterior appearance of the building or premises housing the home occupation other than signage permitted within this section.

      (b)     No noise, odors, bright lights, electronic interference, storage or other external effects attributable to the home occupation shall be noticeable from any adjacent property or public right of way.

      (c)    The home occupation shall be carried on entirely within the principal residential structure and/or within a detached accessory building approved by the City in accordance with these zoning regulations. All "External Effects" criteria in items a. 1. (a), (b), (d), (e) and (f) of this subsection are applicable for the detached accessory building. Signage is not allowed upon the detached accessory building.

      (d)    Mechanical or electrical equipment supporting the home occupation shall be limited to that which is self-contained within the structure and normally used for office, domestic or household purposes.

      (e)    No outdoor storage of materials or equipment used in the home occupation shall be permitted, other than motor vehicles used by the owner to conduct the occupation. Parking or storage of heavy commercial vehicles to conduct the home occupation is prohibited.

      (f)    No home occupation shall discharge into any sewer, drainageway, or the ground any material which is radioactive, poisonous, detrimental to normal sewer plant operation, or corrosive to sewer pipes and installations.

   B.    Employees: The home occupation shall employ no more than one full time or part time employee on site other than the residents of the dwelling unit, provided that one off-street parking space is made available and used by that non-resident employee. This limitation on the number of employees does not apply to home-based businesses/home occupations in the TC District.

   C.    Extent of Use: For all residential and agricultural zoning districts, a maximum percent floor area of 25% of the dwelling may be devoted to the home occupation, inclusive of any detached accessory buildings used for the home occupation.

   D.    Signage: Each home-based business shall be permitted to have one wall sign not to exceed one square foot in area.

   E.    Traffic Generation and Parking:

      (a)    Home-based businesses may generate no more than 10 vehicle trips per day, corresponding to amount of traffic normally generated by a dwelling unit.

      (b)    Deliveries or service by commercial vehicles or trucks rated at ten tons gross empty weight is prohibited for any home-based business located on a local street.

      (c)    Parking needs generated by a home-based business shall be satisfied with off-street parking. Such parking shall not be located in a required front yard. No more than two on-street parking spaces shall be used at any one time.

      (d)    These traffic generation and parking limitations do not apply to home-based businesses/home occupations in the TC district.

   F.   Prohibited Home-Based Businesses/Home Occupations: The following activities are prohibited as home-based businesses, even if they meet the other requirements set forth in this section:

      (a)   Animal hospitals.

      (b)   Beauty and Barber Shops, except with a Conditional Use Permit in the AG, TC and UC districts.

      (c)   General retail sales.

      (d)   Mortuaries.

      (e)   Repair shops or service establishments including major electrical appliance repair, motorized vehicle repair, and related uses.

      (f)   Stables or kennels.

      (g)   Welding, vehicle body repair, or rebuilding or dismantling of vehicles.

3.   Permitted Accessory Uses: Residential Uses. Residential uses may include the following accessory uses, activities, and structures on the same lot.

   A.   Private garages and parking for the residential use.

   B.   Recreational activities and uses by residents.

   C.   Home occupations, subject to Section 610 of these regulations.

   D.   Residential convenience services for multi-family uses or mobile home parks.

   E.   Garage sales, provided that the frequency of such sales at any one location shall not exceed one during a continuous, two month period or four sales during any twelve month period.

4.   Permitted Accessory Uses: Civic Use Types. Guidance Services and Health Care use types are permitted in the LI Limited Industrial zoning districts only as accessory uses to a primary industrial use.

5.   Permitted Accessory Uses: Other Use Types. Other use types may include the following accessory uses, activities, and structures on the same lot:

   A.   Parking for the principal use.

   B.   Manufacturing or fabrication of products made for sale in a principal commercial use, provided such manufacturing is totally contained within the structure housing the principal use.

   C.   Services operated for the sole benefit of employees of the principal use.

6.   Permitted Accessory Uses: Agricultural Use Types.

   A.   Garden centers and roadside stands, subject to the regulations set forth in Section 602.

   B.   Other uses and activities necessarily and customarily associated with the purpose and functions of agricultural uses.

Outdoor storage is prohibited in all zoning districts except the LI General Industrial zoning district, except as provided in this section.

1.   Agricultural Use Types. Outdoor storage is permitted only where incidental to agricultural uses.

2.   Civic Use Types. Outdoor storage is permitted only where incidental to Maintenance Facilities.

3.   Commercial Use Types. Outdoor storage is permitted where incidental to Agricultural Sales and Service; Auto Rentals and Sales; Construction Sales; Equipment Sales and Service; Stables and Kennels; and Surplus Sales. Outdoor storage is permitted where incidental to Auto Services, Equipment Repair, and Body Repair, provided that such storage is completely screened at property lines by an opaque barrier, as set forth in Article 8. This provision shall apply to any Auto Services, Equipment Repair, or Body Repair use established after the effective date of this Ordinance.

4.   Industrial and Miscellaneous Use Types. Outdoor storage is permitted where it is incidental to industrial uses within the AG and LI zoning districts. Any such outdoor storage is subject to screening requirements set forth in Article 8. Outdoor storage is permitted where incidental to landfills.

1.   Purpose. These provisions are intended to permit occasional, temporary uses and activities, when consistent with the objectives of the Zoning Ordinance and compatible with surrounding uses. They are further intended to prevent temporary uses from assuming the character of permanent uses.

2.   Temporary Use Types. The following temporary uses are permitted, subject to the regulations contained within these sections:

   A.   Model homes or apartments, if contained within the development to which they pertain.

   B.   Development sales offices. Such offices may remain in place until 90% of the lots or units within the development are sold and may not be located within a mobile home or manufactured home/structure.

   C.   Public assemblies, displays, and exhibits.

   D.   Commercial circuses, carnivals, fairs, festivals, or other transient events, provided that events are located on property owned by the sponsoring non-profit organization, or are located within a TC or more intensive zoning district.

   E.   Outdoor art shows and exhibits.

   F.   Christmas tree or other holiday-related merchandise sales lots, provided that such facilities are not located in a residential zoning district.

   G.   Construction site offices, if located on the construction site itself.

   H.   Outdoor special sales, provided that such sales operate no more than three days in the same week and five days in the same month; and are located in commercial or industrial zoning districts.

   I.   Construction Batch Plants in the LI District , provided that:

      (a)   No plant may be located within 600 feet of a developed residential use, park, or school.

      (b)   The facility is located no more than one mile from its job site. The Zoning Administrator may extend this distance to two miles, if such extension avoids use of local streets by plant-related vehicles.

      (c)   Hours of operation do not exceed 12 hours per day.

      (d)   The duration of the plant's operation does not exceed 180 days.

   J.   Additional temporary uses that the Zoning Administrator determines to be similar to the previously described uses in this section.

3.   Required Conditions of All Temporary Uses. Each site shall be left free of debris, litter, or other evidence of the use upon its completion or removal. The Zoning Administrator may establish other conditions which he/she deems necessary to ensure compatibility with surrounding land uses.

4.   Permit Application and Issuance. An application to conduct a temporary use shall be made to the Zoning Administrator and shall include at a minimum a description of the proposed use; a diagram of its location; information regarding hours and duration of operation; and other information necessary to evaluate the application.

   A.   The Zoning Administrator may authorize a temporary use only if he/she determines that:

      (a)   The use will not impair the normal operation of a present or future permanent use on the site.

      (b)   The use will be compatible with surrounding uses and will not adversely affect the public health, safety, and welfare.

   B.   The duration of the permit shall be explicitly stated on the permit.

   C.   Decisions of the Zoning Administrator may be appealed to the Board of Adjustment.