The text
A.
Required Elements. Planned developments shall be guided by a comprehensive design plan in which the following development standards may be varied to allow flexibility and creativity in site design, building design, and location. The administrative land use authority may require such arrangements of structures, open spaces, landscaping, buffering, and access within the site development plan as they determine appropriate. The administrative land use authority may require specific setbacks, a higher or lower residential density, and a height limitation. These criteria shall be used by the administrative land use authority principally to ensure the design objectives in this section of this chapter are met.
1.
Feasible Development. A planned development shall be of sufficient size, composition, and arrangement to enable its feasibility as a complete development, in accordance with the minimum site area set forth in this chapter.
2.
Density. Within a planned development, development may occur in one (1) or more phases. The density of any individual phase, whether residential, commercial, or mixed-use, shall be permitted to vary from the base zoning standards applicable to the site, provided that the overall density and intensity of the entire planned development do not exceed the maximum density, floor area, or trip generation assumed or permitted by this title or approved PD development plan. Residential density within any single phase may exceed or be less than the base zoning density, and commercial or mixed-use phases may be developed at varying intensities, so long as the cumulative development across all phases remains in compliance with the approved PD density calculations, transportation assumptions, and public utility capacity. Density transfers between phases may be permitted where such transfer does not increase net trip generation beyond approved limits listed on the approved PD plan and supported by adequate infrastructure and access.
3.
Site Calculations. Specific calculations addressing the percentage of open space (common and private), impervious versus pervious coverage, and site improvements must be submitted with all project applications.
4.
Lot Requirements. No specific yard, setback, or lot size requirement shall be imposed in the planned development. However, the purpose and objectives of this chapter must be complied with in the final development plan. The administrative land use authority may require certain setbacks within all or a portion of the planned development.
5.
Building Height. No residential structure shall exceed a maximum of thirty-five (35) feet to the peak of roof from average finished grade. No commercial, multi-family, or mixed-use structure shall exceed a maximum of fifty (50) feet to the peak of roof from average finished grade.
6.
Traffic Circulation. Points of primary vehicular access to the planned development shall be designed to provide smooth traffic flow with controlled turning movements and minimum hazards to vehicular, pedestrian, and bicycle traffic. Minor streets within the planned development shall not be connected to streets outside the development in such a manner as to encourage their use by through traffic. Adequate emergency vehicle access shall be provided.
7.
Driveways and Alleys. A private driveway or alley must comply with all established standards in this code.
8.
Privacy. Each planned development shall provide reasonable visual and acoustical privacy for dwelling units. Fences, insulation, walks, barriers, landscaping, and sound-reducing construction techniques shall be used as appropriate for the aesthetic enhancement of the property, the privacy of its occupants, the screening of objectionable views or uses, and the reduction of noise.
9.
Noise Attenuation. When, in the opinion of the community development director, a proposed planned development may be situated in a noisy environment which will adversely affect the peace, tranquility, and privacy of its inhabitants or surrounding inhabitants, an acoustical analysis may be required. Said analysis shall be conducted by a qualified acoustical engineer and include a description of the noise environment and the construction or other methods necessary to attenuate the noise to the required level according to the noise standards of this code.
10.
Security. The development shall be designed to support security services and measures, taking into account public safety recommendations from the Riverdale City Police Department.
11.
Pedestrian and Bicycle Paths. Where appropriate, the internal circulation system shall provide pedestrian and bicycle paths which may be physically separated from vehicular traffic to serve residential, nonresidential, and recreational facilities in or adjacent to the development. The administrative land use authority may require connections to regional trail systems, activity centers, pedestrian and/or bicycle overpasses, underpasses, or traffic signalization in the vicinity of schools, playgrounds, parks, shopping areas, or other uses that will receive considerable pedestrian and/or recreational trails use from the development.
B.
Desirable Amenities. The following are desirable amenities or design options which may be required by the administrative land use authority depending on the size, scale, impacts, and nature of each individual planned development project:
1.
Increase in common or private open space above the twenty percent (20%) minimum, particularly when the project contains significant non-buildable open space.
2.
Creation of significant public or private recreation or site amenities, including, but not limited to, clubhouse, pool, sport courts, playgrounds, play fields, trails, and nature areas.
3.
Additional project landscaping and open space may be deemed appropriate.
C.
Construction of Private Amenities in Phase 1. All public and private amenities proposed, required, or relied upon as part of the planned development approval shall be fully constructed, completed, and ready for use no later than the completion of phase 1 of the development, as defined in the approved phasing plan, and prior to issuance of any certificate of occupancy for phase 1, [except] as provided for in this chapter.
D.
Improvement Completion Assurance in Lieu of Phase 1 Construction. The city may approve deferral of construction of one (1) or more public/private amenities beyond phase 1 only if the applicant provides an improvement completion assurance in compliance with Utah Code Title 10, chapter 20 and this code. The improvement completion assurance shall secure the full and timely construction of the deferred private amenities in accordance with the approved plans and phasing schedule. The improvement completion assurance shall be in an amount equal to one hundred ten percent (110%) of the estimated cost to fully construct the deferred public/private amenities, including labor, materials, mobilization, contingency, and all improvements necessary for the amenities to function as approved. Cost estimates shall be prepared by the applicant's licensed engineer or supported by qualified contractor bids and are subject to review and approval by the city engineer or designee. The improvement completion assurance shall be provided in a form authorized by Utah law and acceptable to the city, which may include a surety bond, letter of credit, bank escrow, or other equivalent security. If public/private amenities are not fully constructed and accepted prior to phase 1 occupancy, the required improvement completion assurance shall be submitted and approved before issuance of the first building permit within phase 1, or at an earlier time specified in the approved phasing plan or development agreement. Failure to comply with this section may result in withholding of building permits or certificates of occupancy, to the extent authorized by law and consistent with the approved phasing plan
E.
Partial Release. The city shall maintain a system for partial release or reduction of the improvement completion assurance as public/private amenities, or separable components thereof, are completed, inspected, and verified for compliance with the approved plans. If the applicant fails to complete the deferred public/private amenities within the approved timeframe, the city may draw upon the improvement completion assurance to complete the improvements or cause them to be completed, including reasonable administrative costs.
Nothing in this section shall be construed to require dedication of private amenities to the city or acceptance of ownership or maintenance responsibility by the city.
(Ord. No. 999, § 1, 4-7-2026)