Norwalk, CA Swimming Pools & Spas: Pool Permits (2026)

Two layers of law govern a residential pool permit in Norwalk. California's Swimming Pool Safety Act, Health and Safety Code Section 115922, applies whenever a building permit is issued for a new pool or spa, or for remodeling an existing one, at a private single-family home: the pool or spa must be equipped with at least two of seven listed drowning-prevention features, among them an enclosure meeting Section 115923, removable mesh fencing meeting ASTM F2286 with a self-closing, self-latching, key-lockable gate, a safety pool cover meeting ASTM F1346-23, or exit alarms on doors and windows that open directly onto the pool area.

030 makes the permit itself mandatory: no one may construct, reconstruct, enlarge or install a swimming pool without first securing a permit from the Building Department. 070 spells out what the application needs: a plot plan, the pool's dimensions, depth and volume in gallons, the filter system's type and capacity, the piping layout with pipe sizes and materials, pump capacity, the wastewater disposal method, and the pool's fencing or enclosure system, all of which the Building Department can require an engineer or architect to prepare. 120. Final approval, and permission to fill the pool with water, is withheld until the fencing and enclosure requirements are met.