Swimming pool permit rules in Ventura County, CA — also covering above-ground pools, in-ground pools, and spa installations — set fencing, barrier, alarm, and inspection requirements.
In unincorporated Ventura County, a building permit from the Resource Management Agency's Building and Safety Division is required to construct an in-ground or permanent swimming pool or spa. Pools are built to the Ventura County Building Code, which adopts the California Residential Code and the International Swimming Pool and Spa Code.
Building a swimming pool, spa, or hot tub at a home in the unincorporated county requires a building permit from the Ventura County Resource Management Agency (RMA) Building and Safety Division. Construction must comply with the Ventura County Building Code (VCBC). The Board of Supervisors adopted the 2025 VCBC by Ordinance No. 4655 on September 30, 2025 (effective January 1, 2026); the VCBC adopts the California Residential Code and the International Swimming Pool and Spa Code along with prior county amendments for pool provisions, grading, and foundations. Separate from the building permit, the Non-Coastal Zoning Ordinance (NCZO) governs where the pool may sit. Under NCZO Sec. 8106-5.13, swimming pools, spas, hot tubs, and similar structures may be constructed to within 3 feet of rear and interior side lot lines, provided they do not intrude into any required front or street-side setback. Pools designed to hold less than 18 inches of water are exempt from setback requirements. Plan review, inspections, and a final sign-off are part of the permit process. Because the County requires a pre-occupancy pool safety inspection, the drowning-prevention features mandated by California's Swimming Pool Safety Act (Health and Safety Code Sec. 115922) must be verified before final approval. Contact Building and Safety for current fees and submittal requirements.
Building a pool without a permit can trigger stop-work orders, code enforcement, double permit fees, and required correction or removal of non-conforming work before a final sign-off is issued.
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