West Valley City, UT Accessory Structures: ADU Rules (2026)
ADU rules in West Valley City, UT, also called accessory dwelling unit regulations or granny flat ordinances, cover setbacks, owner-occupancy, parking, and permit requirements.
Key Facts
- Detached ADU min lot
- 11,000 sq ft
- Internal ADU min lot
- Over 6,000 sq ft
- Owner-occupancy
- Required for both types
- Detached rental term
- 90+ consecutive days
- Internal rental term
- 30+ consecutive days
Summary
West Valley City sets detailed lot, setback, size, parking, and owner-occupancy standards for both detached and internal accessory dwelling units.
Detached Accessory Dwelling Units shall be prohibited on a Lot that: Is less than 11,000 square feet in area; Does not contain a Single Unit Dwelling... The owner of a Lot where a Detached Accessory Dwelling Unit is located shall reside in the Single Unit Dwelling on the same Lot or in the Detached Accessory Dwelling Unit. A business license shall be required to rent a Detached Accessory Dwelling Unit... rented for a period of at least 90 consecutive days.
Official source re-checked September 8, 2026: no newer edition of the code had been published (publisher’s edition: current through Ordinance 26-30, passed June 23, 2026).
Full Breakdown
West Valley City Municipal Code § 7-7-107.5 governs Detached Accessory Dwelling Units: they are barred on lots under 11,000 square feet, lots without a Single Unit Dwelling, or lots already holding an ADU; must sit in the side or rear yard, be smaller than the primary home, sit back at least 5 feet (10 in Agricultural Zones) from side/rear lines and 20 feet from a street-adjoining line, and the property owner must live in either unit. A companion § 7-7-115.5 governs Internal ADUs, limiting one per parcel, barring a separate utility meter, requiring an added parking space, and prohibiting an internal ADU on a lot of 6,000 square feet or less or where the owner does not occupy the home. Both sections were enacted or amended by Ord. No. 26-28 on 06/23/2026 and expressly operate alongside Utah Code Title 10, Chapter 21, which sets the state floor for internal ADUs.
Violations & Fines
A business license is required to rent either unit type; renting without one, or violating siting/occupancy standards, is enforced through the City's zoning and business-license processes.
Frequently Asked Questions
Can I rent out my West Valley City ADU short-term?
Do I need to live on the property to have an ADU?
Sources & Official References
Other rules in West Valley City
How West Valley City compares: Easiest Cities to Build an ADU·Compare West Valley City to another location·View the Utah accessory structures overview
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ADU Rules in Nearby Cities
How other cities in Salt Lake County handle adu rules.