Grantsville reviews new Planned Unit Development overlay draft; council to retain final discretion

Grantsville staff and consultants presented a draft Planned Unit Development (PUD) overlay to the Planning Commission and City Council on April 30, describing a process that would make PUD approvals a legislative, discretionary action reserved for the City Council and that would require an application-level development agreement, land-use table, site plan and supporting studies.

Jay Springer, who led the presentation, called the draft "a clean version of the text so that we could just talk about the high level issues" and emphasized it was a discussion draft; staff said no formal adoption would happen at the meeting. The draft is designed to start a negotiation from the most restrictive standards of the underlying zones, allow applicants to request deviations, and make the City Council the ultimate legislative decision-maker for PUD approvals.

Key provisions and points discussed - Discretion and process: The draft frames a PUD as an optional, discretionary overlay. If adopted, the council would have final, legislative authority to approve or deny a PUD and to set conditions. Planning Commission public hearings are still required by state law, and the planning commission would forward recommendations to council. - Baseline and negotiation: The draft’s fallback position is that the PUD inherits the most restrictive standards of the underlying zones (for setbacks, uses, density), and applicants must demonstrate reasons for requested deviations. Staff said that if no changes are requested by the applicant the most restrictive rules would remain in effect. - Land use and density: The draft requires applicants to submit a land-use table specific to each PUD. The draft treats mixed underlying zones conservatively (if a use is prohibited in any underlying zone, it is prohibited in the default PUD). The council discussed how density would be calculated and staff said they are developing a definition of "developable acres" to avoid gross-acre density disputes; roads, steep slopes, retention ponds and rights-of-way would generally be excluded from developable acreage unless the council decides otherwise. - Commercial component and minimum size: The draft includes a 25% commercial land-area baseline for PUD districts that are 1 acre or larger; speakers noted the percentage is negotiable and that a stepped approach depending on project size might be appropriate. Council members discussed whether to keep a minimum acreage threshold for PUD eligibility and whether small Main Street parcels should be treated differently. - Affordable/moderate-income housing: The draft states that if a PUD seeks a density increase above the most restrictive baseline, 50% of the added units would need to meet the city's moderate-income standard (staff noted the requirement would apply to density increases requested by the applicant). - Development standards and buffers: The draft lists fallback dimensional standards (setbacks, height, minimum dwelling size, open space) and proposes a default 30-foot buffer between different uses, with options to modify buffers for narrow sites. Staff also proposed that setbacks and many other standards be negotiable as part of the development agreement. - Parking and state law: Staff noted recent state legislation establishing required minimum parking stall dimensions (19 feet by 8 feet for required parking). The group discussed how state parking rules interact with setback and driveway requirements. - Application contents and studies: Required application contents include a PUD district map, a development plan/site plan showing uses and major infrastructure, a land-use table, written justifications for requested deviations, geotechnical and traffic reports, and a development agreement to record phasing and conditions. - Appeals and vesting: The draft retains the Board of Adjustment as an appeal body by default but the council discussed the option of using an as-needed land-use hearing officer under contract. Staff referenced the state "vesting statute" and the property rights ombudsman guidance when discussing how long an approval can be held open without activity; staff described years-long inactivity cases as one reason to add guardrails for reversion to underlying zoning if a PUD fails to materialize.

Council and commission comments Participants repeatedly emphasized that the draft is intended to invite negotiated proposals rather than automatically grant changes. Several council members asked that planning commission recommendations be the version sent to council for public notice and that changes between the planning commission packet and the council packet be clearly summarized on the record. Staff said administrative minor modifications would be allowed for engineering-driven adjustments, but major modifications (adding land, changing uses or substantial density changes) would require returning to public hearings.

Next steps Staff will incorporate feedback from the joint meeting, refine several definitions (notably "developable acres" and density calculations), and bring the draft to a public hearing before the Planning Commission and then the City Council for action. No formal vote on the draft was taken at the April 30 meeting.

Why this matters If adopted, the PUD overlay would change how large, mixed-use and mixed-zone developments are reviewed in Grantsville by making PUD approvals a legislative decision and by requiring recorded development agreements that can control phasing and affordable-housing commitments. The approach is intended to give the city clearer negotiable standards and to reduce ambiguity that staff and elected officials said caused problems with prior developments.