Planning commission forwards ADU code amendments to county council, asks for clarifications

The Snyderville Basin Planning Commission voted 5-0 on Oct. 10 to forward a positive recommendation to the Summit County Council on a package of accessory dwelling unit (ADU) code amendments, while asking staff to refine several definitions and clarify how the rules will apply in special zones.

Laura Kurmeier, the county planner, told commissioners the package "eliminates the agricultural employee dwelling units from the code, amending the criteria and definition for accessory dwelling units, creating a definition and criteria for internal accessory dwelling units as required by the state code, and then creating a live work dwelling unit use kind of in place of that AG employee dwelling unit" and updates the use table accordingly. She said the changes also "prohibit nightly rentals" for ADUs, clarify floor-area measurement, and reduce parking requirements as part of the county’s moderate-income housing plan.

Why it matters: County staff framed the revisions as part of a larger effort to encourage moderate-income housing while preventing past abuse of the agricultural-employee ADU classification. Several commissioners praised the work but raised practical concerns about parking enforcement and how internal ADUs — which, under state law, may not be limited in size if they meet owner-occupancy and state-code criteria — will function in practice.

Commissioner Thomas pressed the issue of on-street parking in tight neighborhoods, offering a hypothetical where a homeowner repurposes a primary dwelling’s garage space and adds an ADU. "Does this really solve that problem?" he asked, questioning whether a single dedicated off-street spot for an ADU meaningfully addresses real-world vehicle counts. Staff responded that the county’s parking code requires two off-street spaces for the primary single-family dwelling and that the ADU’s required space would be in addition to those two spaces.

The commission also discussed whether to allow the proposed "live-work dwelling unit" use in residential zones. Staff said the live-work use is intended for commercial zones and that adding it to residential zones could invite the same sort of misuse the amendment seeks to stop. Commissioners asked staff to consider clarifying language to allow subordinate ADUs on institutional CUP sites (for example, a caretaker unit tied to a school or church) and to address whether the mixed-use NMU zone should be evaluated in the separate NMU amendment effort.

Motion and next steps: An unidentified commissioner moved to forward a positive recommendation "based on the findings of fact, conclusions of law, and the recommendations in the staff report with the following recommendations to staff," including reviewing state statute language cited for limiting internal ADUs, rewriting ownership language so it is clear which unit must be owner-occupied, and adding a default reference to the International Building Code for undefined terms. The motion was seconded and carried 5-0. The package will be sent to the Summit County Council for final legislative action.

The commission’s direction to staff is procedural rather than substantive policy reversal: staff will return refined redline language to the council as part of the legislative process. The planner said a council hearing could be scheduled as soon as November, subject to calendar and final staff edits.

Sources: Remarks and presentation by Laura Kurmeier (county planner) and commissioner discussion during the Oct. 10 Snyderville Basin Planning Commission meeting.