Swimming Pools & Spas in Ontario, CA (2026)
2 verified swimming pools & spas rules for Ontario, California, sourced directly from the municipal code and official government pages.
Verified from official government sources
Pool Permits
A City of Ontario Building Department permit, plan check, and engineered drawings are required to build a residential swimming pool, and site plans must show all property lines, structures, slopes, walls, gates, fences, and barriers controlling access to the pool.
Swimming pool building permit and plan review
Some RestrictionsCity of Ontario, Memorandum 'New Requirements for Swimming Pools,' Kevin Shear, Building Official (Feb. 7, 2008)
The Department policy for plan review, permits and inspections for swimming pools are as follows: 1. All drawings, including the site plan, shall have a 'wet' signature by the civil/structural engineer of record. 2. Every pool drawing submitted is required to pay a plan check fee and permit fees based on the job valuation. 3. Site plans shall indicate all property lines, structures, slopes and ...
Fencing & Safety Requirements
The City of Ontario Building Department requires every outdoor swimming pool, spa, or hot tub to be surrounded by a barrier at least 60 inches high with no more than a 2-inch gap at the bottom, self-closing and self-latching gates, and no climbable design features, in line with the California Swimming Pool Safety Act.
Pool barrier and fence requirements
Some RestrictionsCity of Ontario Building Department, Swimming Pools, Spas and Hot Tub Barriers, Barrier Requirements for Outdoor Swimming Pool, item 3 (rev. 1/16/2008)
A. The top of the barrier shall be as least 60 inches (1219mm) above grade measured on the side of the barrier that faces away from the swimming pool. The maximum vertical clearance between grade and the bottom of the barrier shall be 2 inches (51mm) measured on the side of the barrier which faces away from the swimming pool. This vertical clearance may be increased to 4 inches (102mm) when the...
Looking for San Bernardino County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Ontario city rules.
Swimming Pools & Spas in San Bernardino County →