New Haven County, CT Swimming Pools & Spas: Fencing Requirements (2026)

Connecticut adopts a single statewide building code (Conn. Gen. Stat. Sec. 29-252) that incorporates the International Residential Code with state amendments. Residential pool barriers follow IRC Appendix G / AG105. The barrier must completely surround the pool and stand at least 48 inches above grade measured on the side facing away from the pool. The maximum vertical clearance between grade and the bottom of the barrier is 2 inches. Spacing between vertical members may not exceed 1-3/4 inches. Chain-link fences are limited to 2-1/4 inch square mesh, reduced to 1-3/4 inches if slats are added at top or bottom. For lattice fencing, the maximum diagonal opening is also 1-3/4 inches. Gates must open outward, away from the pool, and be self-closing and self-latching, with a lock. Where a dwelling wall serves as part of the barrier, doors providing direct access to the pool must have an alarm or self-closing/self-latching mechanism. Connecticut also requires that no building permit be issued for the construction or substantial alteration of a residential swimming pool unless a pool alarm is installed. Enforcement is by the local Building Official in each New Haven County town (New Haven, Waterbury, Meriden, Milford, Hamden, West Haven, etc.).