Accessory Structures in Sunol, CA (2026)
2 verified accessory structures rules for Sunol, California, sourced directly from the municipal code and official government pages.
Verified from official government sources
ADU Rules
Sunol is an unincorporated CDP in Alameda County governed by Alameda County Code Title 17 (Zoning), specifically the new Chapter 17.55 (Accessory Dwelling Unit and Junior Accessory Dwelling Unit Ordinance) adopted by Ordinance O-2024-XX in 2024. The County allows one ADU plus one JADU on single-family lots in all residential zones with no minimum lot size, consistent with California Government Code §65852.2.
Sunol ADU Rules (Alameda County Title 17)
Few RestrictionsGarage Conversions
Garage conversions to ADUs in unincorporated Sunol are governed by Alameda County Code Title 17, Chapter 17.55 (adopted 2024) and California Government Code §65852.2. No replacement parking is required when a garage is converted, and the existing garage's setbacks are preserved. Most Sunol parcels are on septic systems requiring Alameda County Environmental Health review.
Sunol Garage Conversion to ADU (Alameda County)
Few RestrictionsLooking for Alameda County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Sunol city rules.
Accessory Structures in Alameda County →