Salt Lake City, UT Accessory Structures: Tiny Homes (2026)
Tiny home rules in Salt Lake City, 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.
Key Facts
- Max floor area
- 400 sq ft (excludes loft)
- Foundation
- Permanent foundation required
- Allowed district
- RMF-30 only
- Rooftop decks
- Prohibited
- Parking
- 1 space per unit
Summary
Salt Lake City's zoning code defines a "Tiny House" as its own building type, capped at 400 square feet on a permanent foundation, but only inside the RMF-30 Low Density Multi-Family Residential District.
Tiny House: A detached residential structure that contains one (1) dwelling unit with a permanent foundation that is four hundred square feet (400 ft2) or less in usable floor area excluding lofted space. The structure has a single entry facing the street, an alley or open space on a lot, but shall not face an interior property line. Rooftop decks on tiny houses are prohibited.
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: 2026 S-21: Code current through: Ord. 40-26, passed June 16, 2026).
Full Breakdown
Under City Code § 21A.24.120, a tiny house is a detached, one-unit dwelling on a permanent foundation with 400 square feet or less of usable floor area, not counting lofted space. It needs a single entry facing the street, an alley, or open space: never an interior lot line. Balconies and decks above ground level are capped at 80 square feet and must sit at least 10 feet from a side or rear lot line unless that line abuts an alley. Rooftop decks are banned outright, and each unit needs one off-street parking space. The form is only permitted in the RMF-30 district, not citywide.
Violations & Fines
Constructing or occupying a tiny house without zoning compliance and required building permits violates § 21A.40.030; the city can require correction, deny occupancy, or pursue standard zoning enforcement remedies.
Frequently Asked Questions
Can I put a tiny house anywhere in Salt Lake City?
Do wheeled tiny homes qualify under this rule?
Sources & Official References
Other rules in Salt Lake City
Compare Salt Lake City to another location·View the Utah accessory structures overview
See something wrong?
Help us keep this page accurate. If you notice an error or outdated information, let us know.