Swimming pools are uncommon inside San Francisco, where the yards are small and the summers are cool. They are much more common in the warmer towns we serve down the Peninsula, such as Burlingame and San Mateo, and across the bridge in Marin. Wherever the pool is, the fence around it is a safety barrier with dimensions set by state law, and a hot tub or spa built under permit is treated the same way.
California's Swimming Pool Safety Act describes the enclosure in Health and Safety Code section 115923. It has to be at least 60 inches high, with no more than 2 inches between the ground and the bottom, no opening that a 4 inch sphere can pass through, and an outside face without handholds or footholds a young child could climb. Access gates must open away from the pool, close and latch by themselves, and have the latch release at least 60 inches above the ground.
On the sloped lots common in the hills here, holding the 60 inch height and the 2 inch bottom gap along the whole run takes care, so we lay out the line before choosing panels. Powder-coated aluminum is the usual material because it does not rust in fog or pool chemicals and it leaves the yard open. The local building department inspects the barrier when a pool or spa is built or remodeled under permit, and it can ask for more than the state minimum.
Pool fences in San Francisco: common questions
How tall does a pool fence have to be in California?
At least 60 inches when the enclosure is the pool's safety barrier, under Health and Safety Code section 115923. The gate must swing away from the pool, close and latch on its own, and have its latch release at least 60 inches above the ground. Your city's building department can add requirements.
Does a hot tub or spa in San Francisco need a fence?
State law requires approved drowning-prevention safety features when a pool or spa is built or remodeled under a building permit, and an enclosure is one of the listed options. Ask the Department of Building Inspection what your permit requires. We build the enclosure to the inspector's written requirements.
Can my existing yard fence serve as the pool barrier?
Only if it meets every point of the state rule: 60 inches high, no more than 2 inches of gap at the bottom, no 4 inch openings, nothing climbable on the outside and gates that self-close and self-latch. Older wood fences usually fail on the gate hardware and the gap underneath. We can check it against the list.
How it works
- Free estimate: Call, text or book online. We visit, measure and talk through options.
- Written quote: Clear pricing with material choices side by side.
- Permits & planning: We check local rules and help with permits before we dig.
- Install & clean-up: Our crew installs, cleans up and walks the finished fence with you.