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

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

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.

Above-Ground Pools

Above-ground pools in Phoenix are subject to the same barrier requirements as in-ground pools under ARS §36-1681. Any pool with water 18+ inches deep and wider than 8 feet must be enclosed by at least a 5-foot wall or fence. Building permits are typically required for permanent above-ground pool installations.

Key details: State Law: ARS §36-1681. Depth Threshold: 18 inches or more. Width Threshold: Wider than 8 feet. Barrier Required: 5 ft fence, same as in-ground pools. Permit: Required for permanent installations.

Unpermitted pools: removal or retroactive permit with double fees. Safety violations: immediate correction required. Fines $100 to $500.

This is not one of those rules that cities tend to ignore. Phoenix actively enforces its above-ground pools requirements.

Safety Rules

Phoenix enforces strict pool safety per ARS §36-1681 and the federal VGB Act. Anti-entrapment drains, barriers, alarms, and depth markers required.

Key details: Drain Covers: Anti-entrapment required. Federal Law: VGB Act. State Law: ARS §36-1681. Disclosure: Required at sale.

Non-compliant safety: correction order. Fines $250 to $1,000. Real estate disclosure required. Significant liability exposure.

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

Hot Tub Rules

Hot tubs and spas in Phoenix must meet barrier requirements under ARS §36-1681 if they contain water 24+ inches deep. However, hot tubs not more than 8 feet wide may use a lockable ASTM F1346-compliant safety cover in lieu of interior barriers, as long as exterior perimeter fencing exists.

Key details: State Law: ARS §36-1681. Depth Threshold: 24 inches or more. Cover Alternative: ASTM F1346 lockable cover (spas ≤8 ft). Exterior Fence: Required even with safety cover. Permit: May be required for permanent installation.

Unpermitted electrical work: fines and required correction. Drainage violations: remediation required. Safety cover violations: immediate correction.

Fencing 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 requirements requirements.

The Bottom Line

Phoenix is tougher than many cities when it comes to swimming pools & spas. Out of the 5 rules covered here, 3 are rated strict. If you are a homeowner, renter, or business owner in Phoenix, 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 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.