Accessory Structures in San Rafael, CA (2026)
3 verified accessory structures rules for San Rafael, California, sourced directly from the municipal code and official government pages.
Verified from official government sources
ADU Rules
San Rafael follows state ADU law (Government Code §66341-66342) and has local implementing zoning standards in Chapter 14. ADUs up to 850 sq ft (or 1,000 sq ft for a 2-bedroom) are ministerially approved on lots with an existing or proposed single-family dwelling. Junior ADUs up to 500 sq ft are also permitted.
San Rafael ADU and JADU Standards
Few RestrictionsShed Rules
Sheds in San Rafael must meet zoning setback rules for accessory structures. Under the California Building Code, a building permit is generally required for sheds over 120 square feet; smaller sheds still must meet placement rules.
Accessory Structures: Shed Rules
Some RestrictionsGarage Conversions
Converting a garage to living space in San Rafael requires a building permit and zoning review for egress, light/ventilation and parking; converting to a separate unit is often processed as an ADU under state law.
Accessory Structures: Garage Conversions
Some RestrictionsLooking for Marin County county-wide rules?
County ordinances apply to unincorporated areas and may supplement San Rafael city rules.
Accessory Structures in Marin County →