Contra Costa County, CA Swimming Pools & Spas: Pool Permits (2026)
Swimming pool permit rules in Contra Costa County, CA, also covering above-ground pools, in-ground pools, and spa installations, set fencing, barrier, alarm, and inspection requirements.
Key Facts
- Permit Authority
- County Building Inspection Division
- Side/Rear Setback
- 5 ft minimum (in-ground)
- Applicable Codes
- 2022 CBC, CRC, CEC + County MC
- Application Portal
- epermits.cccounty.us
- First Inspection (in-ground)
- Pre-gunite
- Contact
- 925-655-2700
Summary
A building permit from the Contra Costa County Building Inspection Division is required before installing any pool or spa in unincorporated areas. In-ground pools must be at least 5 feet from side and rear property lines to the water's edge, and applicants must submit engineer-stamped structural details and a site plan through the ePermits Center.
PLANNING DIVISION REQUIREMENTS: In ground pools or spas shall be located 5 minimum from side and rear property lines to water's edge. Above ground pools or spas may have greater setbacks and may require administrative review. BUILDING INSPECTION REQUIREMENTS: A building permit is required for all pool and spa installations and shall be obtained prior to start of installation.
Full Breakdown
Per the County's Pool and Spa Installation handout, the Planning Division requires in-ground pools or spas to be located a minimum of 5 feet from side and rear property lines to water's edge in unincorporated Contra Costa County; above-ground pools may require greater setbacks subject to administrative review. us, based on the 2022 California Building Code, Residential Code, Electrical Code, and Contra Costa County Municipal Code. Submittals must include: a Homeowner's Association approval letter (if applicable); a completed Building Permit application; a site plan showing existing structures, utilities, easements, proposed pool/equipment location, and setbacks; Sanitary/Environmental Health approval; and engineer-stamped structural details and calculations (built-in pools/spas) or UL listing for portable above-ground spas.
For in-ground pools the first inspection is pre-gunite (underground conduit, water, and gas piping). Portable above-ground spas require a rough electrical and a final inspection. Multifamily and commercial pools require additional Environmental Health permitting.
Violations & Fines
Installing a pool or spa without a permit constitutes a violation of the Contra Costa County Municipal Code and the California Building Code, subject to stop-work orders, double permit fees, mandatory removal or correction, and abatement proceedings through the Building Inspection Division.
Frequently Asked Questions
Do I need a permit for an above-ground portable spa?
What setback applies to above-ground pools?
Is Environmental Health approval needed for a backyard pool?
Sources & Official References
Other rules in Contra Costa County
California rules heatmap·Compare Contra Costa County to another location·View the California swimming pools & spas overview
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