Tiny Homes Zoning — State ProfileReviewed 2026-08-23
Can you put a tiny home in Utah?
Current tiny-home-on-wheels and ADU rules for Utah, sourced and dated — plus verified local builders.
DEPENDS ON LOCATION
Utah — Statewide law covers internal ADUs only, not detached units (verified 2026-08)
Tiny home on wheelsNo statewide tiny-home-on-wheels law; regulation is set city and county by city and county. Rural counties in southern and eastern Utah tend to have lighter zoning than the Wasatch Front metro area.
ADU / accessory unitThis corrects and narrows an earlier, vaguer draft. Utah's real statewide law is House Bill 82 (2021), codified at Utah Code §10-9a-530, effective October 1, 2021 — but it applies only to internal ADUs (units within the existing footprint of the primary home, like basement apartments), not detached backyard units. Cities must allow at least one internal ADU as a permitted use and cannot require owner-occupancy, but they may still require an extra parking space, restrict internal ADUs from up to 25% of single-family-zoned land (67% in college towns), and require a rental permit. Detached ADUs remain entirely under local control.
Minimum square footageNo statewide minimum for internal ADUs; detached ADU size is set locally
Foundation requirementInternal ADUs have the clearest statewide-guaranteed path; detached and wheeled units depend entirely on the specific city or county
Local notesDon't assume Utah's ADU law covers a backyard tiny home — HB 82 specifically protects internal conversions (like a basement apartment), which is a narrower right than most 'statewide ADU law' framing suggests.
!Zoning is set by your specific city or county, not the state as a whole. Use this as a starting point, then confirm with the local building or planning department before you buy land or start a build. Not legal advice.
Last reviewed 2026-08-23