Tiny home rules in Lehi, UT — covering tiny houses on wheels (THOWs), park model RVs, and tiny home on foundation builds — determine where they are legal and how they get permitted.
Utah Code §10-9a-530 and §17-27a-526 authorize internal ADUs statewide. Tiny homes on foundations are dwellings; tiny homes on wheels (THOW) are typically classified as RVs and cannot be permanent residences in Provo or Orem.
Utah's 2021 ADU law (UT §10-9a-530 for cities, §17-27a-526 for counties) requires jurisdictions to allow internal accessory dwelling units in owner-occupied single-family homes. Detached ADUs and tiny homes on foundations remain subject to local zoning — Provo Code §14.34 permits detached ADUs up to 1,000 sq ft with 4-foot rear setbacks; Orem's 2023 ADU ordinance allows similar units. IRC Appendix Q (adopted by Utah) governs tiny houses under 400 sq ft on foundations, requiring minimum ceiling heights and emergency egress. Tiny homes on wheels (THOW) with RVIA certification are classified as RVs under Utah Code §41-1a-102, and Utah County, Provo, and Orem prohibit using them as permanent dwellings in residential zones — they may only be parked (not occupied) on a residential lot for limited periods. A few Utah County areas have experimented with RV/tiny-home parks (licensed under UT §26B-7-401 manufactured home community rules). Utility hookups (water, sewer, electric) must meet Utah State Construction Code. The Utah County Health Department enforces septic requirements in unincorporated areas.
Occupying a THOW as a residence in Provo/Orem: zoning violation, $100-$1,000 per day. Unpermitted foundation tiny home: stop-work, required removal or retroactive permit. ADU occupancy without CO: prohibited under Utah Code §15A-1-204.
Lehi, UT
Lehi City Code Title 5, Chapter 3 governs noise control with decibel-based limits. Quiet hours are generally 10 PM–7 AM. The city enforces noise limits by la...
Lehi, UT
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Lehi, UT
Lehi's noise ordinance (Title 5, Chapter 3) restricts construction noise outside daytime hours. Standard quiet hours of 10 PM–7 AM apply. Construction equipm...
Lehi, UT
Lehi City Code §7-1-2 prohibits parking motor homes, trailers, campers, boats, or RVs on public streets or rights-of-way in residential zones at any time, ex...
Lehi, UT
Lehi City Code Chapter 7 governs street parking. Vehicles may not be parked in violation of city parking regulations. Standard prohibitions near fire hydrant...
Lehi, UT
Lehi Development Code Chapter 12 governs off-street parking requirements. Driveways must not obstruct traffic sight lines. ADU properties require at least on...
See how Lehi's tiny homes rules stack up against other locations.
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