Accessory Structures in Cupertino, CA (2026)
5 verified accessory structures rules for Cupertino, California, sourced directly from the municipal code and official government pages.
Verified from official government sources
ADU Rules
Cupertino permits accessory dwelling units (ADUs) on lots in any residential or mixed-use residential district under Municipal Code Chapter 19.112. Conforming ADUs are approved ministerially, and standard ADUs carry no owner-occupancy requirement, consistent with California ADU law (Government Code Sections 66310 to 66342).
Cupertino Accessory Dwelling Unit (ADU) Rules
Few RestrictionsShed Rules
Sheds and other detached accessory structures in Cupertino are regulated as accessory structures under Municipal Code Chapter 19.100 and must meet setback, height, and size standards. Structures over 120 square feet generally require a building permit under the adopted California Building Code.
Cupertino Shed and Accessory Structure Rules
Some RestrictionsGarage Conversions
Cupertino allows converting a garage or accessory structure into an accessory dwelling unit under Municipal Code Chapter 19.112, and no replacement parking is required when covered parking is removed for an ADU. A building permit is required to confirm the converted space meets dwelling standards.
Cupertino Garage Conversion Rules
Some RestrictionsCarport Rules
Carports in Cupertino are regulated as accessory structures under Municipal Code Chapter 19.100 and must meet the setback and height standards of the underlying zoning district. Off-street parking design is governed by Municipal Code Chapter 19.124.
Cupertino Carport and Covered Parking Rules
Some RestrictionsTiny Homes
A permanent tiny home on a foundation is treated as an accessory dwelling unit in Cupertino under Municipal Code Chapter 19.112, which allows detached ADUs up to 800 to 1,000 square feet. Movable tiny homes on wheels are not recognized as standalone permanent dwellings.
Cupertino Tiny Home Rules
Some RestrictionsLooking for Santa Clara County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Cupertino city rules.
Accessory Structures in Santa Clara County →