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Swimming Pools & Spas in San Marcos, CA (2026)

2 verified swimming pools & spas rules for San Marcos, California, sourced directly from the municipal code and official government pages.

Verified from official government sources

Pool Permits

Above-ground pools in San Marcos are regulated by the California Building Standards Code and the California Swimming Pool Safety Act (Health & Safety Code sections 115920-115929). The city defines a pool as water 24 inches or more in depth, requires perimeter fencing with self-closing self-latching gates, and requires a building permit. Portable above-ground spas are not pools but still need a perimeter fence or a lockable top.

swimming-pools/above-ground-pools

Some Restrictions

Cal. Health & Safety Code §§ 115921-115922 (Swimming Pool Safety Act)

115921. As used in this article, the following terms have the following meanings: (a) "Swimming pool" or "pool" means any structure intended for swimming or recreational bathing that contains water over 18 inches deep. "Swimming pool" includes in-ground and aboveground structures and includes, but is not limited to, hot tubs, spas, portable spas, and nonportable wading pools. (b) "Public swimmi...

Fencing & Safety Requirements

Every San Marcos swimming pool over two feet deep on a lot of an acre or less, plus every hotel, motel, apartment and public pool, must be enclosed by a barrier at least five feet high with no gaps wider than five inches, and gates must self-close and self-latch at least 4'6" above grade.

San Marcos Swimming Pool Fencing Rule

Some Restrictions

San Marcos Municipal Code § 8.40.070

(a)Fence required. In order to obstruct access thereto by persons other than the owners or occupants of the premises on which a swimming pool is located, every swimming pool shall be enclosed by a natural barrier, retaining wall, fence or other structure having a minimum height of five feet measured from the exterior grade of said barrier, wall, fence or structure. Said barrier, wall, fence or ...

Looking for San Diego County county-wide rules?

County ordinances apply to unincorporated areas and may supplement San Marcos city rules.

Swimming Pools & Spas in San Diego County