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

Every city handles swimming pools & spas a little differently. In Phoenix, Arizona, there are 2 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.

Pool Permits

Building a swimming pool, spa, or pool barrier in Phoenix requires a building permit from the Planning & Development Department, with two mandatory inspections (pre-gunite and pre-plaster). Only small above-grade prefabricated pools (≤ 5,000 gallons) are exempt from the structure permit, and even those still require a separate permit for the pool barrier.

Key details: Code Section: PBCC Admin. Provisions § 105.2 (Work Exempt from Permit). Permit authority: Phoenix Planning & Development Dept. (602) 262-7811. Inspections: Pre-gunite + pre-plaster. Structure-permit exemption: Prefab above-grade pool ≤ 5,000 gallons (R-3 only). Barrier permit: Required even for exempt prefab pools.

Constructing a pool, spa, or barrier without the required permit, or filling/plastering a pool before barrier inspection approval, is a code violation that can trigger stop-work orders and after-the-fact permitting through Planning & Development. Barrier non-compliance can additionally be charged as a petty offense under A.R.S. Section 36-1681.

Fencing & Safety Requirements

Phoenix requires every residential pool, spa, or hot tub holding 18 inches or more of water to be enclosed by a barrier at least five feet (60 inches) high with self-closing, self-latching gates, plus a separate inner-yard barrier between the dwelling and the pool. The rules are set in the 2024 International Swimming Pool and Spa Code as amended by Phoenix Ordinance G-7397, building on Ordinance G-3316 adopted May 4, 1990.

Key details: Code Section: 2024 ISPSC § 305 (Phoenix amendments, Ord. G-7397). State Statute: A.R.S. § 36-1681. Original ordinance: Ord. G-3316 (May 4, 1990). Minimum barrier height: 60 inches (5 ft). Max opening: No 4-inch sphere may pass; chain-link mesh ≤ 1-3/4 in.

Pool barriers are inspected during the pre-plaster inspection; a pool cannot be plastered or filled until the barrier is installed, inspected, and approved. Under A.R.S. Section 36-1681 a barrier violation is a petty offense, though the court may suspend fines if the owner installs a compliant barrier within 45 days and completes an approved pool-safety education course. Removing or altering an approved barrier without a permit is a code violation subject to Planning & Development and Fire Department enforcement.

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

The Bottom Line

Phoenix'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 Phoenix is broadly strict or permissive.

Keep in mind that Phoenix 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.