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Stanislaus County, CA Swimming Pools & Spas: Fencing & Safety Requirements (2026)

Some Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified August 2026

Key Facts

Governing section
§16.25.030(O), amending IPMC §303.2
Barrier standard
California Building Code Part 2, Vol. 2, §3109
Enforcing officials
Chief building official & environmental resources director
Appeal deadline
30 days from notice to Board of Appeals
Max misdemeanor penalty
$1,000 fine and/or 6 months jail
Applies only in
Unincorporated county, not Modesto or Turlock

Summary

In unincorporated Stanislaus County, Section 303.2 of the county's amended International Property Maintenance Code sends every private pool, hot tub, and spa straight to state law: the barrier must comply with California Building Code Part 2, Volume 2, Section 3109, the statewide swimming pool safety standard. The chief building official and the director of environmental resources jointly enforce the housing code chapter that contains this rule.

City-specific rules exist: Modesto has its own fencing & safety requirements rules that differ from Stanislaus County's county-level regulations. If you live in Modesto, check the city-specific page instead.

Section 303.2 Enclosures, is deleted in its entirety and replaced with the following: Private swimming pools, hot tubs and spas, shall comply with California Building Code, Part 2 Volume 2, Section 3109.

Full Breakdown

25, then rewrote several sections to fit county practice. 2, titled 'Enclosures,' is one of them: rather than spelling out its own fence-height or gate-latch numbers, the county deleted the ICC's stock enclosure language and replaced it with a straight cross-reference to the California Building Code's pool-safety chapter, Part 2, Volume 2, Section 3109. That means any private swimming pool, hot tub, or spa built or maintained on unincorporated land, outside Modesto, Turlock, Ceres, Riverbank, Oakdale, Patterson, Newman, Waterford, or Hughson, which enforce their own municipal codes, must meet the state's drowning-prevention barrier standard rather than a county-specific fence spec.

020 for the whole housing code chapter. If the code official finds a substandard condition tied to a missing or noncompliant enclosure, the property owner receives a written notice describing the defect and the corrective deadline; anyone with a recorded interest in the property may appeal that notice and order to the county's Building Code Board of Appeals, but the appeal must be filed in writing within 30 days of service or the right to a hearing is waived. 3) and governs light, ventilation, and plumbing fixtures, so a pool-enclosure complaint often arrives alongside other property-maintenance findings during a single inspection.

Violations & Fines

Noncompliance with a Section 303.2 enclosure order is treated as a Property Maintenance Code violation: Section 16.25.030(K) ties penalties for unresolved notices and orders to Section 109.4 of the housing code, and county-wide, violating any code chapter without a specific penalty listed is a misdemeanor under Section 1.36.010, a fine up to $1,000, up to six months in county jail, or both. Where the county instead charges the matter as an infraction, Section 1.36.020 sets escalating fines of $100, $200, and $400 for repeat violations of the same ordinance within a year.

Frequently Asked Questions

Does Stanislaus County require a fence around a residential pool?
Yes. Section 303.2 of the county's amended Property Maintenance Code requires every private pool, hot tub, and spa in the unincorporated area to comply with California Building Code Part 2, Volume 2, Section 3109, the state's swimming pool safety law, rather than a separate county fence-height table. Building on unincorporated land must meet that state barrier standard before final inspection.
Do hot tubs and spas need the same enclosure as a full-size pool?
Yes. Section 303.2 names 'private swimming pools, hot tubs and spas' together and applies the same California Building Code Section 3109 barrier standard to all three, without carving out a lighter rule for smaller spa installations. A hot tub project on unincorporated land is inspected against the identical enclosure standard as an in-ground pool.
Who enforces the pool enclosure rule in Stanislaus County?
The chief building official and the director of environmental resources jointly enforce Chapter 16.25, the county's Property Maintenance Code, and either may act as the 'code official' under Section 16.25.020. They issue the notice and order when an enclosure is missing or defective, and the property owner has 30 days to appeal to the county's Building Code Board of Appeals.
Does this rule apply inside Modesto or Turlock?
No. Stanislaus County's code chapter only governs the unincorporated area. Modesto, Turlock, Ceres, Riverbank, Oakdale, Patterson, Newman, Waterford, and Hughson each enforce their own adopted building and property maintenance codes, so a pool on incorporated city land is inspected under that city's ordinance, not the county's Chapter 16.25.

Sources & Official References

Other rules in Stanislaus County

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