Swimming Pools & Spas in Rialto, CA

If you live in Rialto or are thinking about moving there, swimming pools & spas are one of those things you probably won't think about until they affect you directly. Rialto has 2 specific rules on the books covering different aspects of swimming pools & spas, and some of them might surprise you.

Pool Permits

Building a pool or spa in Rialto requires a building permit through the city's Online Permit Center, with plans that show compliance with the pool fencing chapter, and the pool cannot be filled until fences and gates pass inspection. State law adds that any new or remodeled residential pool must include at least two of seven drowning prevention safety features verified at final inspection.

Key details: Permit required: Yes - via Rialto Online Permit Center. Building department: Building & Safety Division, 150 S. Palm Ave, (909) 820-2505. Applicable code: 2025 California Building Standards (applications after Dec 31, 2025). Plan requirement: Plans must show compliance with RMC Ch. 15.36 fencing rules. State requirement: 2 of 7 drowning prevention features (HSC 115922).

Building without a permit is a code violation subject to misdemeanor prosecution ($1,000 fine and/or six months) or infraction fines under RMC 1.16.010, and administrative fines of $100 to $1,000 per day under RMC Chapter 1.10. Pools gunited without inspection must be removed back to the excavation cavity (RMC 15.36.050), and a pool filled before fence approval violates RMC 15.36.040.

Fencing & Safety Requirements

Rialto requires every swimming pool to be surrounded by a protective barrier fence or wall at least 60 inches (5 feet) high with self-closing, self-latching gates, and the barrier must be inspected and approved before the pool is plastered or filled with water. The rule covers in-ground, above-ground, portable, and collapsible pools, plus garden ponds, spas, hot tubs, wading pools, and fountains holding water over 18 inches deep.

Key details: Minimum barrier height: 60 inches (5 feet) above grade. Bottom clearance: Max 2 inches (4 inches over solid surface). Opening size: No passage of 1-3/4-inch sphere (city handout); RMC caps openings at 4 inches. Chain link mesh: Max 2-1/2 inches square (1-3/4 inches with slats). Gates: Open outward, self-closing, self-latching, lockable.

Violations of the Rialto Municipal Code are misdemeanors punishable by a fine of $1,000 or six months imprisonment, or both, unless charged as infractions with fines of $100 for a first violation, $200 for a second within two years, and $500 for further violations (RMC 1.16.010). The city may also issue administrative citations with fines of $100 to $1,000 per day per violation under RMC Chapter 1.10. A pool may not be filled with water until the fence and gates pass inspection (RMC 15.36.040).

The Bottom Line

Rialto's swimming pools & spas rules are a mixed bag. Some areas are strict, others are relaxed, and the details matter. The best approach is to check the specific rule that applies to your situation rather than assuming Rialto is broadly strict or permissive.

All of the above reflects Rialto's municipal code as of our last review. If you need specifics on fines, exemptions, or filing requirements, the detailed ordinance pages linked above have the full breakdown.