A. Accessory Buildings, Uses And Equipment:
1. Accessory Building As Principal Building: An accessory building shall be interpreted to be an integral part of the principal building if it is connected to the principal building by a covered passageway or is positioned so that any of its walls are within four feet (4') of the principal structure.
2. Accessory Buildings Not Permitted In Front Yards: Accessory buildings, uses, or equipment shall not be stored or constructed between the front lot line and required front building line.
3. Height Of Accessory Buildings: Accessory buildings and garages in residential districts shall not exceed the height of the principal structure and shall not be located within a utility easement.
4. Detached Structures Setback Requirements:
a. Detached structures shall have a minimum three foot (3') side yard setback from any side property line and a six foot (6') rear yard setback from the rear property line.
b. A detached structure wall shall maintain a minimum four foot (4') separation from the main structure wall.
c. Percentage Of Yard Coverage: Accessory structures may occupy not more than fifty percent (50%) of any required rear yard.
1. Bicycle Lanes May Be Required: Wherever new streets or roads are developed or wherever existing streets are required to be improved, the developer may be required to incorporate striped bicycle lanes into the design and construction or improvement of the streets.
2. Bicycle Racks Required: All development proposals subject to minor or major site plan review shall provide adequate bicycle parking facilities to accommodate residents, employees and customers of the proposed development.
C. Fences, Walls And Hedges:
1. Location: Fences, walls and hedges, in any district may be located on lot lines provided such fences, walls and hedges do not exceed eight feet (8') in height. Fences or walls exceeding eight feet (8') in height shall be subject to the minimum setback requirements of the district in which such fences are located. However, no fences, walls or hedges shall exceed four feet (4') in any corner lot side setback or front setback.
2. Relation To Linear Parks: Fences located in the rear yard setback of properties adjoining any public park shall have a maximum height of four feet (4').
3. Construction, Maintenance And Height Measurement:
a. Construction And Maintenance: Every fence or wall shall be constructed of substantial, suitable material. No fence or wall shall be allowed to become and remain in a condition of disrepair, damage, or unsightliness, or constitute a nuisance, public or private. Any such fence or wall that is, or has become, dangerous to the public safety, health or welfare, or has become unsightly through improper maintenance or neglect is a public nuisance and the zoning administrator shall commence proper abatement proceedings.
b. Barbed Wire And Electric Fences:
(1) Barbed wire, electric or similar type fences shall be prohibited, except in AG districts; except that barbed wire or other similar type fencing materials may be used on the top of security fences in HC and C-I districts if the barbed or electrified strands are at least eight feet (8') above the adjacent ground.
(2) When electrically charged fences are used, such fences shall be posted with warning signs at intervals not to exceed one hundred fifty feet (150') where such fences are adjacent to public rights of way or residential zoning districts.
c. Fence And Wall Height Measurement: In case of a fence erected on top of a retaining wall, the height shall be measured from the grade of the high side of the wall. All other fence height shall be measured as height above the adjacent grade.
4. Screening Walls And Fences: Refer to the performance standards set forth in this chapter for specific screening provisions.
D. Outdoor Sales, Storage And Display:
1. Merchandise: Merchandise offered for sale, rental or lease to the ultimate consumer or user:
a. Temporary Display: If not of a type customarily sold outside a building, may be temporarily displayed and sold outside in a commercial district, but the area occupied by such display shall not exceed ten percent (10%) of the ground floor area of the building housing the principal sales area.
b. Permanent Display: If of a type customarily displayed for sale outdoors, such as automobiles and garden supplies, shall not use in excess of seventy five percent (75%) of the total lot area and shall be subject to the screening requirements set forth in the performance standards of this chapter
. c. No Use Of Yard: Permanent display activities shall not be conducted within any required setback space or parking area.
2. Vehicles And Equipment:
a. Screening: All areas designated for vehicle, equipment and materials storage shall be screened per the performance standards set forth in this chapter.
b. Surface: Such areas need not be paved but shall be treated to control dust and shall meet all storm water management requirements.
c. No Use Of Yard: Vehicle, equipment and materials storage shall not be conducted within any required setback space or parking area.
E. Recreational Vehicle On Residential Lot: A recreational vehicle shall not be located on a residential lot outside of any approved mobile home park, except that:
1. Recreational Vehicle Storage: Only one recreational vehicle may be stored on a single-family homesite. One recreational vehicle per dwelling unit may be stored on a multi-family homesite but only as approved pursuant to zoning review. In no event shall living quarters be maintained or any business practiced in the recreational vehicle while stored.
2. Temporary Use Permit: Temporary use permits, not to exceed one year in duration, may be granted by the town commission for occupying such recreational vehicle or manufactured home during construction or reconstruction of a single- or two-family dwelling.
F. Setback And Height Encroachments:
1. Permitted Setback Encroachments: The following encroachments into required yards shall be permitted:
a. Architectural features such as porches, covered terraces, and covered decks, chimneys, balconies, stairways, wing walls, bay windows, sills, pilasters, lintels, cornices, eaves, gutters, awnings, and steps, provided such architectural features do not extend more than five feet (5') into any required yard;
b. Terraces and patios, uncovered decks and stoops, or similar features, provided that such features shall not extend above the height of the ground floor level of the principal structure nor more than five feet (5') into any required setback;
c. Fire escapes may be permitted in required side or rear yards only;
d. Wheelchair ramps may encroach into any required yard, but shall not be located closer than three feet (3') from any property line; and
e. Flagpoles, ornamental features, trees, shrubs, walkways, nameplate signs, and lights.
2. Zero Lot Line Conditions: Where an individual owns two (2) adjoining lots or where the owners of two (2) adjoining lots make legal written agreement, a zero lot line concept may be used for single-family dwelling unit development. This may result in the creation of a two-family residential structure, only in districts permitting such structure, or the creation of townhouse clusters in districts permitting such structure. In all cases a minimum ten foot (10') side yard shall be maintained adjacent to the exterior side, or nonzero lot line side, of the structure.
3. Special Setback Requirements:
a. The corner lot side setback for any corner lot not located on an arterial street shall be equal to the adjacent side yard of the adjacent lot.
b. A twenty five foot (25') corner lot side or front setback shall be provided on all arterial streets.
4. Watercourse Setbacks: No newly constructed structure, addition to an existing structure, parking lot or similar improvements shall be located closer than fifteen feet (15') to the mean high water mark of a watercourse. For the purpose of this subsection, the "mean high water mark" shall be defined as the line that the water marks on the soil by covering it for sufficient periods to deprive it of vegetation. A minimum of five feet (5') of the required fifteen foot (15') setback immediately adjacent to the watercourse shall be left in a natural vegetative state. The foregoing provisions shall in no way invalidate the provisions set forth in the floodplain overlay district of this title and/or the minimum setback of five hundred feet (500') from the Madison River established for all new land subdivisions reviewed under the provisions of the town subdivision regulations.
5. Height Limitation Exceptions:
a. Nonspecific Exemptions: No building, or part thereof, or structure shall be erected, reconstructed, or structurally altered to exceed in height the limit herein designated for the district in which such building is located, except as may be specifically authorized as an approved condition of a traditional neighborhood development. Such approved condition must include the recommendation of the town fire chief. (Ord. 131, 3-14-2002)
(1) Height limitations shall not apply to church spires, belfries; monuments, chimneys; public utility facilities; transmission towers of commercial and private radio broadcasting stations; television antennas; parapet walls. Wind turbines/windmills and solar collector panels must be submitted for conditional use permit. (Ord. 131, 3-14-2002; amd. per motion dated 3-12-2009)
(2) Public and semipublic buildings containing auditoriums or large assembly spaces may exceed height limitations, provided that for each foot of height such building exceeds the maximum height permitted in the district, its side and rear setbacks shall be increased by an additional foot over the setbacks required in the district.
G. Street Vision Triangle: The area of unobstructed vision across property lines outside the rights of way of streets and/or alleys shall be as follows:
1. Streets: On corner lots in all districts, no fence, wall or planting in excess of thirty inches (30") above the street centerline grade shall be permitted within a triangular area defined as follows: Beginning at the intersection of the property lines, twenty five feet (25') along one property line, then diagonally to a point on the intersecting property line a distance of twenty five feet (25') from the property line intersection, then to the point of beginning.
2. Driveways And Alleys: On corner lots in all districts, no fence, wall or planting in excess of thirty inches (30") above the street centerline grades shall be permitted within a triangular area defined as follows: Beginning at the intersection of the projected curb lines of an alley or driveway with a street, thence fifteen feet (15') along one drive path, thence diagonally to a point fifteen feet (15') from the point of beginning on the other drive path, then to the point of beginning.
3. Provision For Trees In Street Vision Triangle:
a. Single stem canopy trees may be permitted in street vision triangles as described in this section, provided that mature trees do not significantly affect safe driving conditions and are maintained such that no canopy foliage exists below a height of ten feet (10') above centerline of intersecting streets.
b. Trees which are located in the street vision triangle and which preexisted the adoption of this title may be allowed to remain, provided the trees are trimmed such that no limbs or foliage exist below a height of ten feet (10') above centerline grades of intersecting streets.
H. Swimming Pools, Public And Private:
1. Location: A swimming pool shall not be located in any required front yard area in any zoning district; however, if not more than two feet (2') in height above the adjacent grade, a swimming pool may be located within a required side or rear yard area.
2. Security: All swimming pools shall be:
a. Entirely enclosed by a childproof fence or wall not less than forty two inches (42") in height. Gates or doors shall have automatic, childproof closure and locking mechanisms, or
b. Have a secure, locking hard cover.
I. Unfinished Structures Use: No cellar, basement, garage, tent, tepee, recreational vehicle, accessory structure, vehicle or any other type of structure not meeting acceptable health and sanitation requirements shall at any time be used as a dwelling unit.
J. Water And Sanitary Sewer System Requirements:
1. Central Facilities Required: Central water distribution and central sanitary sewer collection systems shall be provided to all building lots or building sites created inside the town limits, except for those lying within AG or R-RD zoning districts. Such systems shall be in place prior to the issuance of any building permits on such lots or sites. Each building site must utilize and be connected to both the Ennis central water distribution and central sanitary sewer collection systems.
2. Design Standards: These improvements shall be designed, constructed and installed according to the standards and criteria adopted by the state of Montana, Madison County or the town.
K. Storm Drainage Design, Criteria: All land development and construction activities shall comply with the town of Ennis storm drainage design policy. (Ord. 131, 3-14-2002)