ADU rules in Ventura, CA — also called accessory dwelling unit regulations or granny flat ordinances — cover setbacks, owner-occupancy, parking, and permit requirements.
Ventura regulates ADUs under SBMC Chapter 24.430. ADUs cannot be smaller than 150 sq ft. Attached ADUs may be up to 800 sq ft or 50% of the primary residence (whichever is greater). Detached ADUs must provide 6-foot separation from the primary dwelling. Colors and materials must match the primary unit.
SBMC Chapter 24.430 establishes ADU regulations in Ventura. An ADU/JADU may not be smaller than 150 sq ft per Health and Safety Code 17958.1. Attached ADUs cannot exceed the greater of 800 sq ft or 50% of the primary residence floor area. Lot coverage must permit an ADU up to 800 sq ft. Colors and materials must match the primary dwelling. Attached ADUs/JADUs follow the primary dwelling's height requirements or 25 feet, whichever is greater, and may not exceed two stories. Detached ADUs require a minimum 6-foot separation from the primary dwelling. If the primary dwelling requires fire sprinklers, the ADU must also have them. New detached ADUs require solar panels per Energy Code if they are nonmanufactured construction. The Coastal Zoning Code (CZC 24.430.060) has parallel provisions for coastal zone properties.
Unpermitted ADUs face stop-work orders, mandatory permitting with penalty fees, and possible removal. Non-compliant ADUs may not be occupied until brought into compliance.
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Side-by-side rule comparisons with other cities in Ventura County.
See how other cities in Ventura County handle adu rules.
See how Ventura's adu rules rules stack up against other locations.
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