Swimming Pools & Spas in Orange County, CA (2026)

5 county-level rules, plus city-specific rules for 10 cities in Orange County, California.

Verified from official government sources

Note: These county rules apply to unincorporated areas of Orange County. If you live within an incorporated city, that city's own rules apply — see the city list below.

Pool Permits

In unincorporated Orange County, OC Public Works requires a building permit before constructing a swimming pool or spa. Applicants submit a Building Permit Application, a Pool/Spa Questionnaire, and stamped plans through myOCeServices. Planning approval and plan check are required prior to issuance.

Orange County Pool and Spa Building Permits

Some Restrictions

Full ordinance details →Official source ↗

Fencing Requirements

Pools and spas in unincorporated Orange County must be completely enclosed by fencing at least 5 feet high with no openings greater than 4 inches. Gates must be self-closing and self-latching, swing outward, and have the latch a minimum of 5 feet high.

Orange County Pool Fencing and Enclosure Requirements

Heavy Restrictions

Full ordinance details →Official source ↗

Safety Rules

Under County Ordinance 19-006 and the California Swimming Pool Safety Act, new and remodeled pools and spas in unincorporated Orange County must have a secondary drowning-prevention barrier in addition to the perimeter fence, such as a removable mesh fence, safety pool cover, or pool entry alarm.

Orange County Pool Drowning-Prevention Safety Rules

Heavy Restrictions

Full ordinance details →Official source ↗

Above-Ground Pools

The California Swimming Pool Safety Act and Orange County's pool rules apply to any structure intended for swimming that holds water more than 18 inches deep. Above-ground pools meeting that depth need a building permit and must satisfy the same enclosure and drowning-prevention requirements.

Orange County Above-Ground and Portable Pools

Some Restrictions

Full ordinance details →Official source ↗

Hot Tub Rules

Spas and hot tubs are treated like pools in unincorporated Orange County. The OC note sheet's enclosure and secondary-barrier rules apply, and under the California Pool Safety Act a spa holding more than 18 inches of water needs a building permit and at least two drowning-prevention features.