Bathroom Remodel Permit Requirements — Orinda, CA
Yes. Bathroom remodels with plumbing relocation in Orinda require a residential building permit issued by Contra Costa County, plus mandatory prior review and approval from the City of Orinda Planning Department.
Get exact requirements for your address →3 free searches. No account required.
What affects your permit requirement
Typical requirements
- Fee range
- $800–$1200[fee schedule]
- Department
- Contra Costa County Department of Conservation and Development, Building Inspection Division(925) 655-2700https://epermits.contracosta.ca.gov
These figures reflect typical jurisdiction data. Fees and timelines change. Run a free search on your exact address for jurisdiction-confirmed requirements before you bid or apply.
Frequently asked questions
Do I need a permit for a bathroom remodel in Orinda if I'm just replacing fixtures?
Yes, if plumbing lines are being relocated or moved, a full building permit is required. If you are only replacing fixtures in place without relocating drains or supply lines, you may qualify for a simpler trade permit; contact Contra Costa County Building Inspection at (925) 655-2700 to confirm your specific scope.
Where do I start the permit process in Orinda?
Submit your application first to the City of Orinda Planning Department at (925) 253-4210, using their Building Permit Application Form. After Planning Department approval, submit the building permit to Contra Costa County through their ePermits Center at https://epermits.contracosta.ca.gov.
How much does a bathroom remodel permit cost in Orinda?
For a typical 50–80 sq. ft. bathroom, estimated combined fees range from $800–$1,200 based on the Contra Costa County fee schedule. This is a formula estimate; actual fees depend on confirmed square footage and project valuation calculated by county staff at intake, so call (925) 655-2700 for a project-specific quote before submitting.
Does Orinda have its own building department?
No. Orinda does not have its own building department; it contracts with Contra Costa County Department of Conservation and Development for building permits and inspections. However, all projects requiring a building permit must also receive prior approval from the City of Orinda Planning Department.
What building code applies to my Orinda bathroom remodel?
The 2025 California Building Standards Code applies, including the 2025 California Residential Code (Part 2.5), 2025 California Plumbing Code (Part 5), and 2025 California Electrical Code (Part 3), all effective as of January 1, 2026.