San Diego County, CA Swimming Pools & Spas: Pool Permits (2026)
Swimming pool permit rules in San Diego County, CA, also covering above-ground pools, in-ground pools, and spa installations, set fencing, barrier, alarm, and inspection requirements.
Key Facts
- Covered if
- Water depth over 18 inches
- Enclosure height
- 60 inches (same as in-ground)
- Top-mounted barrier gap
- Up to 4 inches where on a solid surface/structure
- Safety feature
- At least one additional feature required
- Permit
- County PDS Building Division
Summary
Above-ground and on-ground pools holding water over 18 inches deep are 'swimming pools' under unincorporated San Diego County's rules and must meet the same barrier and safety-feature requirements as in-ground pools. A barrier mounted on top of the pool wall may have up to a 4-inch ground/structure gap.
769, Sec. 3. (SB 552) Effective January 1, 2025.) 115922. (a) Except as provided in Section 115925, subject to subdivision (b), and consistent with Section 1596.814, when a building permit is issued for the construction of a new swimming pool or spa or the remodeling of an existing swimming pool or spa at a private single-family home, the respective swimming pool or spa shall be equipped with at least two of the following seven drowning prevention safety features: (1) An enclosure that meets the requirements of Section 115923 and isolates the swimming pool or spa from the private single-family home. (2) Removable mesh fencing that meets the ASTM International F2286 standard in conjunction with a gate that is self-closing and self-latching and can accommodate a key lockable device.
Full Breakdown
The County PDS 379 handout defines a swimming pool to include in-ground, above-ground, and on-ground pools, plus fixed-in-place wading pools, whenever the water depth exceeds 18 inches. Above-ground pools therefore must be separated from neighboring properties by a compliant enclosure (minimum 60 inches high on the side facing away from the pool) and equipped with at least one additional safety feature, exactly as for in-ground pools. The County recognizes that the enclosure may be mounted on top of the above-ground pool structure: in that case, and where the grade is a solid surface such as a concrete deck, the maximum vertical clearance at the bottom of the enclosure may be increased from 2 inches to 4 inches.
The same gate, gap, non-climbable-surface, and chain-link gauge/mesh standards apply, and any ladder or steps providing access should be addressed so the barrier is not defeated. Entrapment-avoidance rules for suction outlets also apply. A building permit from County PDS Building Division is required, and all barrier and safety elements must be inspected and approved before the pool is filled. Temporary or inflatable pools that hold water 18 inches or shallower fall outside this definition, but owners should confirm depth and configuration with PDS.
Violations & Fines
Treating an above-ground pool as exempt is a common error; if it holds water over 18 inches deep it must be permitted and meet the full barrier and safety-feature requirements. Non-compliant barriers must be corrected before filling.
Frequently Asked Questions
Does an above-ground pool need a fence in unincorporated San Diego County?
Are small inflatable kiddie pools regulated?
Sources & Official References
Other rules in San Diego County
California rules heatmap·Compare San Diego County to another location·View the California swimming pools & spas overview
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