ADU Permits: Oxnard vs Ventura
How do adu permits rules compare between Oxnard, CA and Ventura, CA?
Ventura has fewer restrictions than Oxnard.
Oxnard, CA
Ventura County
Oxnard processes accessory dwelling units ministerially under City Code Chapter 16 (Zoning Code), Sections 16-467 through 16-468 and related provisions. Review is by the Community Development Department, Planning and Environmental Services Division, with construction permits issued by the Building Division. State law (Cal. Gov. Code §65852.2) preempts most local barriers and requires the City to act within 60 days of a complete application.
View full Oxnard rules →Ventura, CA
Ventura County
Ventura processes ADU and JADU applications as ministerial permits, not discretionary. Under Gov. Code § 65852.2(b), a complete ADU/JADU application must be approved or denied within 60 days. Applications are submitted through Ventura's Permit Services / Ventura OPS online portal.
View full Ventura rules →Key Facts Comparison
| Fact | Oxnard | Ventura |
|---|---|---|
| Code Section | City Code Ch. 16 Sec. 16-467, 16-468 | - |
| Reviewing Body | Community Development - Planning & Environmental Services | - |
| Process | Ministerial - no hearing | - |
| Decision Window | 60 days (Cal. Gov. Code §65852.2(b)) | - |
| Detached Max Height | 16 ft (18-25 ft in statutory exceptions) | - |
| JADU Cap | 500 sf within existing walls | - |
| Review type | - | Ministerial (no discretionary review or hearing) — § 65852.2(b) |
| State deadline | - | 60 days from complete application |
| Apply at | - | Ventura OPS online portal |
| Fee estimator | - | City of Ventura permit fee estimator includes ADUs |
| Coastal zone | - | CDP required under Public Resources Code § 30600 |
Highlighted rows indicate differences between cities.
Oxnard FAQ
Who approves ADU applications in Oxnard?
The Community Development Department's Planning and Environmental Services Division handles zoning review under City Code Sec. 16-467; the Building Division issues construction permits. No public hearing is held — approval is ministerial under Cal. Gov. Code §65852.2.
How many ADUs can I build on my Oxnard lot?
One ADU per legally existing lot developed with one residential use, per City Code Sec. 16-467. A separate JADU (up to 500 sf within the existing walls of the primary dwelling) may also be permitted on single-family lots, consistent with Cal. Gov. Code §65852.22.
Ventura FAQ
How long does Ventura take to approve an ADU permit?
By state law, the city must approve or deny a complete ADU application within 60 days (Gov. Code § 65852.2(b)). Failure to act within that window results in deemed approval.
Can the city require a public hearing for my ADU?
No. Gov. Code § 65852.2(b)(1) requires ministerial processing — no public hearing or discretionary review is allowed.
Where do I file?
Use the Ventura OPS online portal or contact Permit Services at City Hall, 501 Poli Street.
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