Contra Costa County, CA Parking Rules: RV & Boat Parking (2026)

Recreational vehicle and boat storage in unincorporated Contra Costa County is regulated by the zoning code (Ordinance Code Title 8) and traffic ordinances (Title 4, Division 46). On public streets, RVs and boat trailers are subject to the 72-hour parking limit under CVC 22651(k), and some posted areas prohibit overnight parking of oversized vehicles under CVC 22507.5. On private residential property, RVs, boats, trailers, and similar recreational vehicles generally must be stored in a side or rear yard, behind the front setback line, and should be screened from public view where feasible. Front-yard storage is typically prohibited except in designated driveway areas when the vehicle is operable and currently registered. Using an RV as a permanent dwelling is prohibited on residential lots; short-term occupancy by guests is limited (commonly 14-30 days). In rural residential zones, looser standards may apply. Bethel Island, with its marina-oriented character, has specific provisions accommodating boat storage. Loading/unloading stays are generally permitted for short durations. Complaints should be directed to the DCD Code Enforcement Division.