Swimming Pools & Spas in Sonoma, CA (2026)
5 verified swimming pools & spas rules for Sonoma, California, sourced directly from the municipal code and official government pages.
Verified from official government sources
Pool Permits
Sonoma requires a building permit for any new in-ground or above-ground pool, spa, or hot tub holding water deeper than 18 inches, with plans reviewed by Permit Sonoma against the California Building Code and SMC 19.50.080.
Pool & Spa Building Permits in Sonoma
Some RestrictionsFencing Requirements
Pool enclosures in Sonoma must be at least 60 inches high with self-closing/self-latching gates opening away from the pool, no more than a 2-inch ground gap and no openings that pass a 4-inch sphere - the isolation-enclosure option under SMC 19.50.080 and California Pool Safety Act HSC §115922-115923.
Pool Fencing & Barrier Requirements
Heavy RestrictionsSafety Rules
New and remodeled pools/spas at Sonoma single-family homes must have at least two of seven independent drowning-prevention features under California HSC §115922, plus dual anti-entrapment drains under the Virginia Graeme Baker standards (ASME/ANSI A112.19.8) referenced in Permit Sonoma CNI-044.
Drowning Prevention & Pool Safety Features
Heavy RestrictionsAbove-Ground Pools
Above-ground pools holding water over 18 inches deep are regulated identically to in-ground pools in Sonoma - building permit, 5-foot side/rear setback under SMC 19.40.110, and the HSC §115922 two-feature drowning-prevention requirement all apply.
Above-Ground Pools in Sonoma
Some RestrictionsHot Tub Rules
Hot tubs and spas in Sonoma are treated as swimming pools when their water depth exceeds 18 inches, but a locking safety cover meeting ASTM ES 13-89 can exempt a spa from the full HSC §115922 enclosure mandate under Permit Sonoma CNI-044.
Hot Tub & Spa Rules in Sonoma
Some RestrictionsLooking for Sonoma County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Sonoma city rules.
Swimming Pools & Spas in Sonoma County →