Chico's Swimming Pools & Spas: The Rules That Matter

Every city handles swimming pools & spas a little differently. In Chico, California, there are 5 distinct rules that residents and property owners should be aware of. Some are stricter than what neighboring cities enforce, and others are more relaxed. Here is what you need to know.

Above-Ground Pools

Above-ground pools holding water more than 18 inches deep are 'swimming pools' under Cal. HSC §115921(a) and are treated the same as in-ground pools by the Chico Building Division. A building permit is required, the pool must comply with the California Building Code/California Residential Code, and at least two of the seven SB 442 drowning prevention features must be installed. The pool wall itself (if 60+ inches high) may satisfy the enclosure requirement, provided ladders are removable or secured.

Key details: Depth threshold: Over 18 inches of water = 'swimming pool' (HSC §115921(a)). Wall-as-enclosure: Wall ≥60 inches may serve as SB 442 enclosure if ladder is secured. Permit: Building + electrical permits via Chico Building Division. Setbacks: CMC Title 19 zoning setbacks apply to equipment pads.

Installing an above-ground pool without a permit violates the California Building Code as adopted citywide. Failure to provide compliant SB 442 features bars final sign-off (HSC §115922(c)). Leaving a removable ladder accessible while no other safety feature is in place creates a non-compliant condition.

Pool Permits

Chico does not publish a standalone pool ordinance in the Municipal Code. Pool, spa, and hot tub installations are permitted by the Chico Building Division under Title 24 of the California Code of Regulations (California Building Standards Code), which is enforced citywide per the Building Division's stated mandate. A building permit is required for in-ground pools, above-ground pools, and permanently installed spas before excavation or installation begins; plumbing and electrical sub-permits typically attach.

Key details: Permitting authority: Chico Building Division, 411 Main St. Code basis: Title 24 CCR (CBC/CRC/CPC/CEC) + HSC §115920–115929. Pool threshold: Any structure intended for swimming with water over 18 inches deep (HSC §115921(a)). Final sign-off requirement: Two SB 442 safety features verified by building official (HSC §115922(c)).

Construction without a building permit is a violation of the California Building Code as adopted by Chico and may trigger a stop-work order, double permit fees, and code-enforcement citation. Final inspection sign-off cannot be issued unless the SB 442 / HSC §115922 drowning prevention features are verified by the building official.

Safety Rules

Chico follows the California Swimming Pool Safety Act (Cal. HSC §§115920–115929). At new pool construction or any pool/spa remodel requiring a building permit, the property must have at least two of seven drowning prevention safety features, verified at final inspection by the Chico Building Division. State law preempts the field; there is no separate Chico pool safety ordinance.

Key details: Statute: Cal. HSC §§115920–115929 (Swimming Pool Safety Act). Trigger: New pool/spa construction or remodel requiring permit. Required features: ≥2 of 7 drowning prevention features (HSC §115922(a)). Disclosure at sale: Home inspector identifies features present (HSC §115925).

A building official may not approve final construction unless at least two compliant safety features are present (HSC §115922(c)). Continued violation can result in withholding of certificate of occupancy and code-enforcement action.

This is not one of those rules that cities tend to ignore. Chico actively enforces its safety rules requirements.

Hot Tub Rules

Cal. Health & Safety Code §115921(a) expressly includes 'hot tubs, spas, portable spas' within the definition of 'swimming pool.' Chico enforces the Swimming Pool Safety Act and the California Building/Electrical Codes for spa installation. Permanently installed spas require a building and electrical permit through the Chico Building Division. A locking safety cover meeting ASTM F1346 is the most common way to satisfy one of the two required SB 442 drowning prevention features.

Key details: Statutory inclusion: Hot tubs/spas are 'pools' under HSC §115921(a). Permit: Building + electrical permit for permanently installed spas. Most common compliance: ASTM F1346 locking safety cover + 1 additional SB 442 feature. Portable spas: May skip building permit but SB 442 still applies if >18 inches deep.

Installing a hard-wired spa without an electrical permit violates the California Electrical Code as adopted citywide. Failing to provide two SB 442 features blocks final inspection sign-off (HSC §115922(c)).

Fencing Requirements

Chico does not adopt a standalone pool fence ordinance; the controlling rule is the California Swimming Pool Safety Act enforced through the building permit process. If an isolation enclosure is selected as one of the two required SB 442 safety features, it must be at least 60 inches high with no more than a 2-inch gap from the ground (Cal. HSC §115923). Gates must be self-closing, self-latching, and open outward away from the pool, with the latch located at least 60 inches above ground.

Key details: Minimum enclosure height: 60 inches (Cal. HSC §115923(a)(1)). Maximum ground gap: 2 inches (Cal. HSC §115923(a)(2)). Gate: Self-closing, self-latching, opens away from pool (HSC §115923). Latch height: ≥60 inches above ground.

Failure to install a compliant enclosure (when used as a SB 442 feature) is grounds for the building official to withhold final inspection sign-off under HSC §115922(c). Post-installation removal or non-maintenance of a required enclosure exposes owners to civil liability and potential code-enforcement nuisance abatement under Chico Municipal Code Title 1 general enforcement authority.

Compared to other cities, Chico takes a harder line on fencing requirements. The enforcement and penalty structure reflects that.

The Bottom Line

Chico is tougher than many cities when it comes to swimming pools & spas. Out of the 5 rules covered here, 2 are rated strict. If you are a homeowner, renter, or business owner in Chico, take the time to understand these requirements before they become a problem. Most violations come with fines, and some repeat violations can escalate.

Keep in mind that Chico can amend these rules at any council meeting. For the most current version of any rule mentioned here, check the specific ordinance page, where we track updates as they happen.