Santa Cruz County, CA Swimming Pools & Spas: Hot Tub Rules (2026)

Under the California Building Code and Santa Cruz County Code, a spa or hot tub containing water over 18 inches deep is defined as a swimming pool and therefore requires a building permit for installation or alteration. Per County form IB-282, hot tub and spa submittals must include a site plan showing property lines, setbacks, and any windows or doors with glazing within 5 feet of the spa or hot tub edge, plus an electrical layout complying with the California Electrical Code and a weatherproof GFCI receptacle between 10 and 20 feet of the water's edge. Under the Swimming Pool Enclosure Ordinance (SPEO), a spa or hot tub that is separate from the pool area and not protected by a compliant pool enclosure must have a lockable, fully functioning safety cover. A self-contained spa or hot tub equipped with a listed safety cover is recognized by the County and the California Building Code as one acceptable barrier option in lieu of a full enclosure. When a building permit is issued to remodel or modify an existing spa or hot tub, the suction outlet must be upgraded to an anti-entrapment cover meeting current ASTM or ASME standards. The SPEO applies to single-family homes and duplexes in the unincorporated area of the County that have a swimming pool, spa, or hot tub.