Accessory Structures in Tustin, CA (2026)
5 verified accessory structures rules for Tustin, California, sourced directly from the municipal code and official government pages.
Verified from official government sources
ADU Rules
Tustin permits ADUs and JADUs under City Code Section 9279, adopted by Ordinance No. 1517 (Dec. 2021) to match California state law. A single-family lot may add one ADU plus one JADU. Detached ADUs allow studio/1-bedroom up to 850 sq ft and 1,200 sq ft for two or more bedrooms.
Tustin Accessory Dwelling Unit (ADU) Rules
Few RestrictionsShed Rules
In Tustin's R-1 single-family district, detached accessory buildings such as sheds are governed by zoning standards in City Code Section 9223, which allow a maximum height of 25 feet with minimum 1-foot side and rear setbacks (5 feet on an alley). A building permit is generally required once a shed exceeds the California 120-square-foot exemption.
Tustin Shed and Accessory Building Rules
Some RestrictionsGarage Conversions
Tustin allows garages to be converted into living space, most commonly as an ADU or JADU under City Code Section 9279. Single-family homes must keep two enclosed garage spaces (Section 9263), so converting a garage usually requires replacement covered parking unless the unit qualifies for a state ADU parking exemption.
Tustin Garage Conversion Rules
Some RestrictionsCarport Rules
Tustin's off-street parking standards (City Code Section 9263) require single-family homes to provide two spaces within a fully enclosed garage, so a carport alone does not satisfy required parking for a single-family residence. Carport and garage interior dimensions and driveway widths are set in Sections 9266-9268.
Tustin Carport and Covered Parking Rules
Some RestrictionsTiny Homes
Tustin has no separate tiny-home ordinance. A permanent tiny house on a foundation is treated as an ADU under City Code Section 9279 (Ordinance No. 1517), with a 220-square-foot minimum and detached ADUs up to 850 or 1,200 square feet. Tiny homes on wheels are recreational vehicles and cannot be used as permanent dwellings.
Tustin Tiny Homes Rules
Some RestrictionsLooking for Orange County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Tustin city rules.
Accessory Structures in Orange County →