Trinity County, CA Swimming Pools & Spas: Above-Ground Pools (2026)

Trinity County's zoning code addresses swimming pools generally and does not carve out a separate, lighter standard for above-ground pools. Section 17.30.070 states that "all such swimming pools shall be completely enclosed by a fence at least six feet in height, and all gates shall be self-latching," and the same setback and equipment rules apply. The code does not state a depth threshold (such as 18 or 24 inches) that would exempt small or portable pools, so owners should not assume an above-ground or inflatable pool is exempt; the County Building Division should be asked whether a particular installation needs a building permit and how the fence rule applies to it. At the state level, the Swimming Pool Safety Act is triggered "when a building permit is issued" for a new pool or spa at a single-family home, so whether the Act's two-feature requirement applies can depend on whether the County requires a permit for a given above-ground unit. Because the wall of an above-ground pool can itself serve as part of a barrier under typical residential-code provisions, confirm with the Building Division how the six-foot enclosure and 60-inch barrier rules are measured for above-ground installations before purchasing or filling a pool.