Oxnard is known among designers as one of the most difficult cities to permit ADUs across Southern California.  This is for a number of reasons:​

• Difficult to communicate with City Development Dept. due to lack of staffing and limited counter hours

• Long plan review times with the Building and Safety Dept.

• Strict technical requirements for architectural plans

Aside from the aforementioned drawbacks, Oxnard is the most ADU-friendly city in Ventura County.  In particular, Oxnard's Planning Dept. allows ADU builds beyond state-mandated requirements (for example, 1,200 sqft ADUs, 25' height limits in some zones).