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

Under the County's pool safety handout, a non-self-contained spa or hot tub is 'considered a swimming pool' and the enclosure must comply with CBC 3109 and Placer County Code 15.04.320. A self-contained spa is defined as a continuous-duty appliance in which all control, water-heating and water-circulating equipment is integral and located entirely under the spa skirt. The key exception: hot tubs or spas that meet the self-contained definition and have a locking safety cover complying with ASTM F1346-91 are exempt from the fence enclosure requirement, and a self-contained unit may be recessed below an adjoining floor, deck or grade if allowed by the manufacturer's specifications and the cover operates normally. Spas that are not self-contained, or that lack a complying locking cover, must meet the full enclosure rules (60-inch permanent barrier, 2-inch bottom clearance, no 4-inch sphere passage, self-latching gate) plus one drowning-prevention safety feature, the same as a pool. A building/electrical permit through CDRA Building Services is generally required for spa installation and bonding.