Accessory Structures in Ventura, CA (2026)
5 verified accessory structures rules for Ventura, California, sourced directly from the municipal code and official government pages.
Verified from official government sources
ADU Rules
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.
Ventura ADU (Accessory Dwelling Unit) Rules
Some RestrictionsShed Rules
Accessory structures in Ventura require building permits for those over 120 sq ft. Must meet setback requirements per SBMC Title 24. In Very High FHSZ areas, non-combustible or fire-resistant materials are strongly recommended.
accessory-structures/shed-rules
Some RestrictionsGarage Conversions
Garage conversions to ADUs are allowed per CA state law. Existing setbacks are exempt. Replacement parking is not required when a garage is converted to an ADU. Thomas Fire rebuild area conversions followed expedited process (expired Dec. 31, 2025).
accessory-structures/garage-conversions
Some RestrictionsCarport Rules
Carports in Ventura require building permits and must comply with zoning setback and lot coverage requirements. Carports count toward the maximum lot coverage in residential zones. Design must be compatible with the residential character of the neighborhood.
Ventura Carport Regulations
Some RestrictionsTiny Homes
Tiny homes on permanent foundations in Ventura are treated as ADUs or JADUs under SBMC Chapter 24.430 and must meet minimum size requirements (150 sq ft). Tiny homes on wheels are generally classified as recreational vehicles and cannot be used as permanent dwellings in residential zones.
Ventura Tiny Home Regulations
Some RestrictionsLooking for Ventura County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Ventura city rules.
Accessory Structures in Ventura County →