San Antonio, TX Swimming Pools & Spas: Fencing Requirements (2026)

Per ISPSC Section 305.2.1 as adopted by the City, residential pools and spas must be enclosed by a permanent barrier at least 48 inches above grade measured on the side facing away from the pool, around the entire perimeter. Vertical clearance between grade and the bottom of the barrier may not exceed 2 inches over non-solid surfaces (grass, gravel) or 4 inches over solid surfaces. Chain-link mesh openings cannot exceed 1-3/4 inches; vertical-member spacing cannot exceed 4 inches when horizontal members are less than 45 inches apart. Section 305.3 requires gates to open outward away from the pool and be self-closing and self-latching, with the latch release mechanism on the pool side at least 3 inches below the top when below 54 inches. Section 305.4 mandates that where a wall of the dwelling serves as part of the barrier, doors and windows providing direct access to the pool must be equipped with a UL 2017-listed alarm, an ASTM F1346 powered safety cover, or equivalent self-closing/self-latching protection. Permits are required through the Development Services Department before construction.