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

In unincorporated Calaveras County, hot tubs and spas are covered by the same Zoning Code provision as swimming pools. Section 17.16.130 applies to 'swimming pools, spas, and any manmade body of water having a depth of more than 18 inches and related equipment,' requiring the inside wall of the water-containing portion to be at least five feet from any property line and related equipment to meet the standard zone setback or a five-foot setback, whichever is less. Most permanently installed spas require a building permit from the County Building Department under the 2022 California Building Code; the County's permit-exemption list only exempts prefabricated swimming pools less than 24 inches deep, so owners should confirm whether a specific portable spa qualifies. When a building permit is issued for a spa at a single-family home, the California Swimming Pool Safety Act (Health and Safety Code 115922) requires at least two of seven drowning-prevention features. An approved safety pool cover meeting ASTM F1346-23 is one of the listed features and is commonly used for spas. Because rules for portable versus built-in spas differ, verify permit and barrier requirements with the County Building Department before installing a hot tub. The County Environmental Management Agency's pool-spa program covers only public spas, not private backyard units.