Accessory Structures in Salt Lake City, UT (2026)
9 verified accessory structures rules for Salt Lake City, Utah, sourced directly from the municipal code and official government pages.
Verified from official government sources
ADU Rules
ADUs (internal, attached, and detached) allowed citywide in single-family zones per SLC 21A.40.200 (2018, expanded 2021).
Accessory Structures: Adu Rules
Few RestrictionsADU Permits
One ADU (internal, attached, or detached) is allowed by right on any lot containing a single-family dwelling under Salt Lake City Code 21A.40.200, in alignment with Utah HB 82 (2021). Building permits are required for all three configurations.
Salt Lake City ADU Permit Requirements
Few RestrictionsADU Impact Fees
ADUs in Salt Lake City pay the city's residential impact fees (parks, fire, police, transportation, water, sewer, stormwater) assessed under SLC Code Chapter 18.98, with exemption pathways available for affordable units under 18.98.060.
Salt Lake City ADU Impact Fees
Some RestrictionsADU Owner Occupancy
Per Utah Code 10-9a-530 (HB 82, 2021), Salt Lake City requires the property owner to occupy either the primary dwelling or the internal ADU as their principal residence. The owner-occupancy requirement can be enforced via affidavit.
Salt Lake City ADU Owner Occupancy Rules
Some RestrictionsADU Rental Restrictions
SLC Code 21A.40.200 expressly prohibits renting an ADU as a short-term rental. ADUs are restricted to long-term rentals of 30 consecutive days or longer; under Utah Code 10-9a-530 internal ADUs must be offered for rentals of 30 days or more.
Salt Lake City ADU Rental Restrictions
Heavy RestrictionsShed Rules
Sheds under 200 sq ft and 12 ft tall exempt from building permit but must meet setbacks (SLC 21A.40).
Accessory Structures: Shed Rules
Some RestrictionsGarage Conversions
Garage conversions require building permit; replacement parking must be provided if required by zone.
Accessory Structures: Garage Conversions
Some RestrictionsCarport Rules
Carports allowed as accessory structures with standard setbacks; front-yard carports require special review.
Accessory Structures: Carport Rules
Some RestrictionsTiny Homes
Tiny homes on foundations treated as dwellings; tiny homes on wheels treated as RVs and not allowed as permanent residences.
Accessory Structures: Tiny Homes
Some RestrictionsLooking for Salt Lake County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Salt Lake City city rules.
Accessory Structures in Salt Lake County →