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

Hot tubs and spas are explicitly covered alongside pools in Mono County's zoning Section 04.120(7)(e): 'Pools, spas and hot tubs may not be located closer than 5 feet from any side or rear lot line, nor shall they encroach into any easements.' The corner-lot rule — at least 10 feet from the side-street lot line — also applies. A hard-plumbed or hard-wired spa is construction and electrical work that requires a permit from the Mono County Building Division, which enforces state-mandated codes; portable, cord-and-plug units may be handled differently, so check with the Building Division. For PUBLIC spas, Mono County Environmental Health requires a valid health permit, conducts regular inspections, and mandates posted 'Required Signs at Spa Pools' and daily maintenance/operations records. For private residential spas, California's Swimming Pool Safety Act may apply where the spa meets the Act's definition; safety covers (ASTM F1346-91) are among the recognized drowning-prevention features and are commonly used for spas. Owners should also note the County's general fence/screen height limits if enclosing the spa: up to 7 feet, but no more than 4 feet in a required front yard (Section 04.160).