Utah League summary: House omnibus, MIHP changes and new parking and permit rules among major land-use bills

The Utah League of Cities and Towns and APA Utah held a legislative land‑use and housing briefing summarizing the 2025 session’s changes affecting local planning and permitting.

League staff said the session produced a large volume of legislation tied to land use and housing, including one omnibus measure and several other bills that require changes to local codes, permit procedures and incentive programs.

The League described House Bill 368 as the session’s “meat and potatoes” land‑use omnibus. League presenters said HB 368 reorganizes and clarifies annexation code, removes the separate Salt Lake County annexation track, establishes a new, more structured process for adjusting property lines between adjacent owners, and adds a suite of new requirements for building permits, plan review and public‑infrastructure bonding.

On permits and production housing, the bill creates a specific path for “identical plans.” Under that provision, local governments must treat a plan as identical only when it is the same floor plan submitted within the same building‑code cycle, located on the same site and zone, and requires no structural changes or additional engineering beyond a review to confirm substantial identity. The law narrows review timelines for identical plans to a five‑day approval window and reduces the fee cap for such reviews to the lesser of actual cost or 30% of the original plan fee, League staff said.

HB 368 also sets deadlines for building‑permit review for one‑ and two‑family dwellings: a three‑day screening period to determine whether an application is complete, followed by a 14‑day review clock once an application is deemed complete. If applicants submit required materials late and within the last five days of the 14‑day window, the bill pauses the clock and restarts a five‑day review period from the date the outstanding materials are delivered, the presenters said.

The omnibus also tightens rules on public‑infrastructure assurance (bonds). League staff said municipalities must return 90% of the assurance allocated to a completed infrastructure category within 15 days after acceptance of that work, retaining 10% for warranty. If a municipality fails to provide a specific, written list of deficiencies after a warranty inspection, the applicant may be entitled to a 20% reimbursement of the assurance for that infrastructure category after a follow‑up demand, the League explained. The bill requires interest on cash bonds to be held in an interest‑bearing account.

Separately, the League briefed attendees on HB 37, changes to the Moderate Income Housing Plan (MIHP). League staff said HB 37 creates an optional “affordable homeownership submenu” within MIHP that offers more objective, project‑level compliance pathways. Cities that adopt qualifying actions—such as certain density bonuses, housing overlays or approvals tied to the Utah Homes Investment Fund—can count one qualifying strategy as three MIHP strategies and receive three years of compliance certainty (initial year plus two more years), the presenters said.

The submenu includes two density‑bonus paths: a single‑family version (thresholds described as 6 units per acre or half a unit per acre above an already‑higher base zone) and a multifamily path that requires an area with at least 20 units per acre. The legislation leaves substantial latitude for local governments to set project terms, including affordability duration and targeted beneficiary groups, while matching several incentive thresholds to an 80% AMI affordability concept described elsewhere in the session.

Two bills from the Commission on Housing Affordability were highlighted. League staff said SB 262 (Sen. Lincoln Fillmore) dropped an early move to make general plans binding and instead added a new statutory term, “consent agreement,” aimed at letting city councils resolve some litigation and created a county‑only vesting provision plus a shared‑equity mortgage program for new buyers. SB 181, the other Fillmore bill, focused on parking and garages: it sets statewide stall‑size standards (9 by 20 feet for uncovered, 10 by 20 feet for covered) for single‑family, two‑family and townhome units; requires that tandem spaces count as two parking spaces if they are “unobstructed;” and limits when a city may require a garage by tying the garage waiver to an incentive for units that are owner‑occupied for at least five years and affordable to households at 80% AMI, League staff said.

League speakers cautioned that many details will require local code edits and implementation steps. They said some items—like identical plans, the three‑day screening and the five‑day restart for late materials—will change local plan‑review workflows. The League said it will circulate FAQs and workshop sessions (including sessions at APA Utah spring conference) to help planners adapt.

Other measures noted by League staff included a legacy city pilot (state funding targeted at older neighborhoods), clarified retail incentive definitions (SB 280) that allow housing within a quarter mile to qualify for mixed‑use retail incentives, a transfer‑of‑development‑rights clarification, and several transportation and station‑area requirements that require MPO certification of station plans by the end of 2025. The League also highlighted a change to land‑use noticing: ministerial or clerical updates to land‑use ordinances that implement state or federal law or recodify text can be processed with a lower‑cost notice class (class A), reducing costly mailing requirements in some circumstances.

League presenters asked cities to flag implementation questions or local code conflicts so the League can gather consensus for interim work and future legislation. They said the League is preparing slide packets, an FAQ and follow‑up trainings and encouraged planners to send examples where the new rules raise operational questions.

Ending: The League said it will post slides and FAQs, and that staff will continue interim work on outstanding items before the next legislative session. League contact emails were provided to attendees for follow‑up.