Mendocino County, CA Swimming Pools & Spas: Fencing & Safety Requirements (2026)
Key Facts
- Safety features required
- At least 2 of 7 (HSC §115922)
- Governing local code
- §18.04.025(C) adopts CRC Appendix CI
- Enforcing agency
- Dept. of Planning and Building Services
- Violation fee
- 1x, 2x, or 3x normal permit fee
- Applies to
- New pool/spa construction or remodel with permit
Summary
Mendocino County has no standalone pool-fence chapter; it enforces pool safety by adopting the California Residential Code's Appendix CI, the state Swimming Pool Safety Act, at County Code § 18.04.025(C). Under Health and Safety Code § 115922, any new pool or spa built or remodeled under a county permit needs at least two of seven listed drowning-prevention features, most often an isolation enclosure.
(a) Except as provided in Section 115925, subject to subdivision (b), and consistent with Section 1596.814, when a building permit is issued for the construction of a new swimming pool or spa or the remodeling of an existing swimming pool or spa at a private single-family home, the respective swimming pool or spa shall be equipped with at least two of the following seven drowning prevention safety features: (1) An enclosure that meets the requirements of Section 115923 and isolates the swimming pool or spa from the private single-family home. (2) Removable mesh fencing that meets the ASTM International F2286 standard in conjunction with a gate that is self-closing and self-latching and can accommodate a key lockable device.
Official source re-checked September 7, 2026: the cited page had not changed since it was quoted.
Full Breakdown
025(C) adopts the 2025 California Residential Code "together with... " Appendix CI implements California Health and Safety Code § 115922, which requires that any new pool or spa construction or remodel needing a building permit at a private single-family home in the unincorporated county carry at least two of seven listed drowning-prevention features. Owners commonly pair a compliant isolation enclosure under § 115923 with a second layer such as removable mesh safety fencing meeting ASTM F2286, exit-door alarms, self-latching door hardware set at least 54 inches high, a pool cover meeting ASTM F1346, or a water-detecting submersion alarm.
040 amendments to the Residential Code touch only permit timing and refunds, not Appendix CI, the state's seven-feature list controls unmodified inside Mendocino. Building permits and pool inspections run through the Department of Planning and Building Services, whose Building Official signs off on the safety-feature choice before final approval. A pool built or remodeled without meeting the two-feature minimum can be held at final inspection until the owner documents compliance, since occupancy sign-off under Title 18 requires code compliance.
Violations & Fines
Building without a permit, or without at least two of the seven required drowning-prevention features, exposes an owner to enforcement under County Code § 18.08.030: a violation fee equal to the normal permit fee if self-reported, double if the County discovers it by complaint, or triple for a commercial pool. Section 18.04.075 separately makes a Title 18 violation an infraction punishable under Government Code § 25132, with a new offense charged each week a citation goes uncorrected, and the County may record a lien for unpaid costs after 30 days' written notice.
Frequently Asked Questions
Does Mendocino County require a pool fence?
What counts toward the two required safety features?
Who enforces pool safety compliance in unincorporated Mendocino County?
Sources & Official References
Other rules in Mendocino County
California rules heatmap·Compare Mendocino County to another location·View the California swimming pools & spas overview
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