Condos or townhomes (attached or detached).

Apartments (rental or owner-occupancy).

Residential planned developments.

Parks and open spaces (public).

Household pets (two maximum).

Nursing homes or convalescent care centers.

Public and quasi-public buildings and uses.

Group day care.

Golf course (public or private) as part of a planned development.

Medical clinics.

Residential facilities for disabled.

Independent senior citizen housing.

Other compatible uses, not elsewhere specified, approved by the city council after recommendation by the planning commission.

Accessory Buildings. Garage, shed, and any building on a foundation (maximum one story or 15 feet).

Accessory Structures. Pools and jacuzzis, subject to this chapter.

Recreation Facilities. Basketball courts, tennis courts, and similar structures.

Parcel Size. Each application pursuant to this chapter shall be for a site of not less than 10 acres and not more than 20 acres.

Open Space. Each development in the RM-18 zone shall have a minimum of 40 percent of the site reserved for common open space.

Front Yard Setback. The minimum setback from the facade of the residential building to the dedicated public right-of-way shall be no less than 30 feet, and 50 feet from an arterial street. The minimum setback shall be 20 feet from the back of curb which abuts a private driveway, private road, and/or parking areas.

Side Yard Setback. All buildings shall have a setback of 10 feet between all detached buildings. Where buildings are two stories, setbacks between buildings shall be a minimum of 25 feet. Where a side yard is located contiguous with a public street, the side yard setback shall not be less than 20 feet.

Rear Yard Setback. All buildings shall have a rear setback of 25 feet which may include both private yard and common open space. Parking areas shall have a setback of 10 feet from the rear property line. Adjacent to a single-family residential zone, a minimum of 10 feet of landscaping shall be installed.

Accessory Buildings and Uses.

Dwelling units with one bedroom shall be a minimum of 700 square feet.

Dwelling units with two or more bedrooms shall be a minimum of 900 square feet.

Number and Width of Driveways. For each multiple-family residential lot, no more than two driveways shall be used for each 200 feet of parcel frontage or fraction thereof. Each driveway shall have a minimum width of 24 feet and a maximum width of 40 feet exclusive of turnout areas to allow access to a garage or side yard. Units with attached garages shall comply with Riverton City's residential driveway standard.

Restrictions on Corner Lots. On any corner lot, no driveway shall be closer than 30 feet to the point of intersection as measured at the property line.

Restrictions of Driveways on Collector Streets. Any lot fronting on a collector street shall have the driveway designed so that automobiles will not back onto the street.

Minimum Number of Parking Spaces. Multiple-family developments shall have a minimum of two parking spaces per dwelling unit, with one and one-half spaces per one-bedroom unit. The city may require additional stalls based on size of each unit, cost of units, lifestyle characteristics, size of project, future expansion capability, workplace relationship, comparable projects in the area, or other issues as it sees fit. Condominium developments shall have a minimum of two parking spaces per dwelling unit, one of which shall be enclosed in a garage or in a carport. All parking shall comply with Chapter 18.145 RCC, Automobile Parking.

Garage Requirements. A minimum of one-half of the units shall have a fully enclosed garage sized and designed to Riverton City standards and ordinance. The city may allow covered parking in place of garages depending on development type. Garages shall be sized to accommodate a full-size vehicle, with minimum dimensions to match a Riverton City standard parking stall. Such garage must be free of clutter and stored materials enough to house a car at all times. Multi-unit structures may construct underground parking structures to meet this requirement. Carports may not substitute for an enclosed garage if so required by the city. At the discretion of the city council, garages may not necessarily count towards the required number of parking stalls.

Carport Requirements. When carports are used in parking areas, they shall be required to be constructed with the following elements:

Other Requirements. Parking in the RM-18 zone shall follow all other applicable parking regulations as listed in Chapter 18.145 RCC.

Access to Parking. Each multi-unit building shall have reasonable access to parking.

Inoperable Vehicles. No licensed or unlicensed motor vehicle of any kind or part(s) thereof, which is in a wrecked, junked, partially dismantled, inoperative or abandoned condition, whether attended to or not, shall be parked on private property in the RM-18 zone for a period of time in excess of 72 hours, except that not more than two such vehicles or parts thereof may be stored or parked within a building or behind an opaque screening fence.

RV Storage. The planning commission and city council may require each multifamily or condominium development to provide recreational vehicle storage areas for one recreational vehicle for a minimum of five percent of dwelling units within the development, to be evaluated with respect to size of each unit, cost of units, lifestyle characteristics, and size of project. Storage areas shall be fully enclosed and screened.

All areas shall be properly graded so as to cause no drainage problems to adjacent homes or other uses.

All open space shall be sodded or seeded to provide a visually pleasing as well as functional space for appropriate activities.

Where it is deemed appropriate, native grasses and plants may be used along equestrian trails, bicycle paths, etc. Steps shall be taken by developers to guard against such spaces becoming a fire hazard or haven for insects and/or rodents.

All areas shall have a minimum number of both deciduous and evergreen trees to provide for shade and to provide visual relief. The following minimums shall be required:

Open Space Guarantees. Within all areas where common open space is required in the RM-18 zone, adequate assurance in a form approved by the city attorney shall be provided for permanent retention and maintenance of all open space and areas of common ownership. A building permit shall not be issued until all required guarantees have been reviewed by the planning commission and approved by the city council. Such open space guarantees could include easements to the city for perpetual use as open space.

Landscaping Guarantee. Whenever a residential dwelling is constructed, landscaping, in the form of lawn, trees, or other plantings or landscape features, except for areas covered by walls, driveways, and other structures, shall be installed before issuing a certificate of occupancy unless weather forces the developer to bond with the city for the landscaping for a maximum period of six months.

All landscaping shall be of sufficient quality, durability and survivability.

Recreation Facilities. Recreation facilities, including tot lots, swimming pools, basketball courts, tennis courts, and other play areas and equipment, shall be provided as part of the open space requirements at a ratio of one facility for every 25 units, with a minimum of one tot lot per development. A club house may be considered an individual recreational facility if it houses a room with workout equipment. An exception to these requirements may be granted where the subject development is specifically set aside for senior citizens or elderly persons. All recreation facility types and designs shall be approved as part of site plan approval for the project. The city may accept expanded or enhanced facilities or uses as fulfilling the requirement for multiple facilities within a development at its sole discretion.

Conditions. Residential facilities for elderly persons shall be subject to the following conditions before being granted a conditional use permit, and said permit shall not be denied where a facility is found to meet all conditions set forth in this chapter:

Application Accompanied by Plot Plan. An application for a residential facility for elderly persons pursuant to this chapter shall be accompanied by a plot plan in duplicate, drawn to scale, showing the actual dimensions of the property, the size and locations of existing building, all hard-surfaced areas, landscaped areas and such other information as may be necessary to provide for the compliance of this chapter.

Discrimination Prohibited. Discrimination against elderly persons and against residential facilities for elderly persons is prohibited. All decisions regarding an application for a residential facility for elderly persons must be based on legitimate land use criteria, and may not be based on the age of the facility's residents.

Duration. A conditional use granted under this chapter is transferable only upon prior approval of the city council and terminates if the structure in which the facility is housed is devoted to use other than as a residential facility for elderly persons; if the structure fails to comply with applicable health, safety and building codes; or if the operation of the facility is transferred. If any of the above takes place, the structure cannot be sold or used as a multifamily unit unless a permit is obtained from the city.

Licensing. Upon receipt of a conditional use permit, the applicant shall obtain a license from the Utah State Department of Health and a business license from the city. In order to obtain the city business license, the applicant shall submit a copy of the state license. Thereafter, the business license shall be renewed from year to year by paying the proper fees and maintaining the facility according to the standards set forth herein. The business license and conditional use permit shall be subject to revocation for violation or noncompliance with any of the requirements set forth herein or nonpayment of the proper fees.

Lot Area. For single detached units, the minimum lot area shall be 5,000 square feet. For multifamily units, the minimum lot area shall be 7,000 square feet.

Lot Width. For single detached units, the minimum lot width shall be 50 feet. For multifamily units, the minimum lot width shall be 70 feet. Lot width shall be measured at the front yard setback line.

Lot Depth. The minimum lot depth shall be 80 feet.

Front Yard.

Main Building: 15-foot minimum front yard setback measured to foundation.

Garage: 20-foot minimum setback measured to foundation.

Side Yards.

Main Building: Five feet minimum side yard setback measured to foundation. Where adjacent to existing incompatible zoning or use, the setback shall be one foot for every foot in building height, with a maximum setback of 25 feet.

On corner lots, the street side yard setback shall be 15 feet from the right-of-way.

Rear Yard.

Main Building: The minimum rear yard setback shall be 15 feet. Where adjacent to existing incompatible zoning or use, the setback shall be one foot for every foot in building height, with a maximum setback of 25 feet.

Minimum Living Area Square Footage. The minimum finished living area square footage shall be 1,000 square feet for a single-story dwelling unit and 1,200 square feet for a two-story or split level dwelling unit.

Maximum Building Height.

Main Building: 35 feet. No dwelling shall contain less than one story.

Accessory Buildings. Accessory buildings shall comply with the requirements of Chapter 18.225 RCC, Accessory Structures.

Exterior Materials. Brick, tile, stone, or fiber-cement siding is required on the front exterior walls of all residential buildings and the street side(s) of a corner lot. The minimum required amount of brick, tile, stone, fiber-cement siding, or combination thereof (measured in square feet) is 20 percent of the facade on which it is required. Vinyl, aluminum, or other metal siding products are not permitted.

Open Space. Areas where individual dwelling lots are utilized shall not be included in the open space requirements or calculations, with the exception of shared driveway clusters, as described below. Projects over 10 acres shall include a minimum of one acre of open space. A 10 percent reduction in lot size may be allowed to compensate for this requirement, except where a stormwater management area is utilized as open space. Said open space shall be privately owned and maintained unless otherwise approved by the city council prior to recordation of a plat and/or issuance of any building permits within the project.

Shared Driveway Clusters. Where two or more units are clustered on a common shared driveway, the units shall be considered multifamily structures and this section shall not apply, regardless of whether the units are detached. All other applicable standards and requirements of this chapter shall apply.