Accessory Structures in Santa Maria, CA (2026)
4 verified accessory structures rules for Santa Maria, California, sourced directly from the municipal code and official government pages.
Verified from official government sources
ADU Rules
Santa Maria allows ADUs on residential lots zoned RA, R-1, RSL-1, R-2, R-3, and RMH per California state law. ADUs are approved ministerially within 120 days of a complete application.
Santa Maria ADU (Accessory Dwelling Unit) Rules
Some RestrictionsShed Rules
Small sheds under 120 square feet generally do not require a building permit in Santa Maria per California building code. Larger structures require permits and must meet setback requirements.
Santa Maria Shed & Outbuilding Rules
Few RestrictionsGarage Conversions
Garage conversions in Santa Maria require building permits. Converting a garage to living space may qualify as an ADU under California law. Replacement parking may not be required per state ADU legislation.
Santa Maria Garage Conversion Rules
Some RestrictionsCarport Rules
Carports in Santa Maria are governed by Title 12 of the Municipal Code, including Chapter 12-27 (Accessory Structures) and the Off-Street Parking and Loading chapter. Any street-facing carport must sit at least 20 feet from the property line, each covered space must be at least 9.5 by 20 feet, and detached accessory structures must stand at least 5 feet from any dwelling on the lot.
accessory-structures/carport-rules
Some RestrictionsLooking for Santa Barbara County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Santa Maria city rules.
Accessory Structures in Santa Barbara County →