Accessory Structures in St. George, UT (2026)
5 verified accessory structures rules for St. George, Utah, sourced directly from the municipal code and official government pages.
Verified from official government sources
ADU Rules
St. George allows one accessory dwelling unit per single-family lot, but only if the owner lives on-site and the ADU is never rented short-term.
St. George ADU & Garage Apartment Rules
Some RestrictionsSt. George City Code § 10-17A-3
B. Occupancy: The city shall only permit an accessory dwelling unit when an owner-occupant lives on the property within either the single-family dwelling or accessory dwelling unit. Short-term rental of an accessory dwelling unit is not permitted. ... D. Number Of Accessory Units Per Parcel: ... Only one (1) accessory dwelling unit or guesthouse shall be allowed on a lot or parcel. Within the D...
ADU Owner Occupancy
St. George requires an owner-occupant to live in either the single-family home or the accessory dwelling unit before the city will permit an ADU, and bars short-term rental of the unit.
St. George ADU Owner-Occupancy Rule
Some RestrictionsSt. George City Code § 10-17A-3(B)
The city shall only permit an accessory dwelling unit when an owner-occupant lives on the property within either the single-family dwelling or accessory dwelling unit. Short-term rental of an accessory dwelling unit is not permitted. C. The total number of residents that reside in an accessory dwelling unit may not exceed the number allowed for a “family” as defined in this title. D. Number O...
ADU Rental Restrictions
St. George bans short-term rental of accessory dwelling units outright and only permits an ADU where the property owner actually lives on-site, in either the main house or the ADU itself.
St. George ADU Short-Term Rental Ban
Heavy RestrictionsSt. George City Code § 10-17A-3(B)
Occupancy: The city shall only permit an accessory dwelling unit when an owner-occupant lives on the property within either the single-family dwelling or accessory dwelling unit. Short-term rental of an accessory dwelling unit is not permitted. C. The total number of residents that reside in an accessory dwelling unit may not exceed the number allowed for a “family” as defined in this title. ...
Shed & Carport Rules
St. George exempts small one-story accessory structures from a building permit: sheds under 200 square feet can go in the side or rear yard without one, but they still have to follow the city's placement, height, and setback rules.
Shed Permits in St. George
Some RestrictionsSt. George City Code § 10-7-1
B. Accessory Structure: A one (1) story accessory structure is subject to the following standards... 5. An accessory structure not exceeding two hundred (200) square feet, that does not require a building permit, is allowed in the side and rear yard, and no separation is required.
Garage Conversions
Converting an existing garage or carport into an accessory dwelling unit is allowed, but St. George requires the lost parking to be replaced elsewhere on the property if the change would leave the home short of its required off-street parking.
St. George Garage-to-ADU Conversion Rules
Some RestrictionsSt. George City Code § 10-17A-3 F
Parking: An additional off-street parking space is required for each ADU. Tandem parking is not allowed for accessory dwelling units. If an accessory dwelling unit is created within an existing garage or carport, parking spaces contained therein shall be replaced elsewhere on the property if the loss of the parking space would cause the single-family dwelling to be noncompliant with the require...
Looking for Washington County county-wide rules?
County ordinances apply to unincorporated areas and may supplement St. George city rules.
Accessory Structures in Washington County →