Area profile
ADU permits in Ventura County
Typical timeline
City + County review: 6–10 weeks ministerial under state law.
What changes about the permit here
Ventura County permits run cleanly under state ADU law. Each city (Oxnard, Camarillo, Thousand Oaks, Ventura) has its own building department, but all hold ministerial review at 60 days from a complete submittal. The variables are the Coastal Zone (waterfront parcels) and Very High Fire Hazard Zones along the foothills.
- State ADU law guarantees ministerial review on every single-family lot in the county.
- Coastal Development Permit may be required on Ventura / Oxnard waterfront parcels.
- VHFHSZ areas require Chapter 7A ignition-resistant exterior assemblies.
- Thousand Oaks and Conejo Valley HOAs commonly add a parallel architectural review.
On-the-ground notes
- State ADU law sets the floor — every city in the county runs ministerial review under it.
- Coastal Zone parcels (Ventura, Oxnard waterfront) may add a CDP review.
- VHFHSZ on the foothills (Ventura backcountry, Conejo Valley north) → Chapter 7A assemblies.
Go deeper on Ventura County
Services in Ventura County
Ventura County ADU Builder
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Ventura County Bathroom Remodeling
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Ventura County Home Additions
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Ventura County Whole-Home Remodeling
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