What's Required in Phoenix
- Permit required for any pool, spa or hot tub over 18 in deep; only prefab above-ground pools under 18 in and 5,000 gallons are exempt (2024 PBCC 105.2; ISPSC 202 amended)
- Fee: Table A on valuation ($21,000 residential minimum, $413), $234 minimum permit fee, $30 aquatics surcharge on every pool permit
- Standard plan: $98 plot plan review, two sealed engineer letters, engineering details on site; custom pool: sealed site-specific engineering, 100% plan review
- Barrier: 5 ft high, 4-inch sphere rule, 2 in max under the fence, 45 in between horizontals, gates self-closing and self-latching with latch 54 in up, opening outward
- House wall as barrier: self-closing, self-latching doors, no pet doors, sliding door closers, window latches at 54 in
- Pools at least 3 ft from exterior property lines; survey waiver within 5 ft; encroachment letter for utility easements
- Pre-gunite and pre-plaster inspections; barrier must remain for the life of the pool and needs a permit to alter
- Separate gas line permit for a heater on a standard plan; ramadas and cabanas are separate permits
- Owner-occupant may file under ARS 32-1121.A.5; otherwise an ROC-licensed pool contractor
Do You Need a Permit to Build a Pool in Phoenix?
Yes for anything you would call a pool. Phoenix's amendments to the 2024 International Swimming Pool and Spa Code define a residential pool as any structure for swimming or recreational bathing that contains water over 18 inches deep, including in-ground, above-ground and on-ground pools, hot tubs, spas and fixed wading pools, matching the 18-inch line in Arizona's pool enclosure statute, ARS 36-1681. The only exemption in the 2024 Phoenix Building Construction Code is for prefabricated pools less than 18 inches deep, not more than 5,000 gallons and installed entirely above ground. So a soft-sided above-ground pool that holds 2 feet of water needs a permit, and its barrier is inspected like any other. Once a barrier is approved it must stay for the life of the pool, and a new permit is required to alter, remove or replace it.
Phoenix Pool Permit Rules by Scenario
| What you are doing | City filing | Rule |
|---|---|---|
| Prefab above-ground pool under 18 in deep and up to 5,000 gallons | None | 2024 PBCC 105.2 Building item 9 |
| Above-ground or inflatable pool 18 in or deeper | Pool permit with barrier inspection | ISPSC 202 as amended; ARS 36-1681 |
| In-ground pool on an approved standard plan | Pool application, plot plan, $98 plot plan review, Table A permit fee + $30 | TRT 00914; Fee Schedule Table A |
| Custom pool, or standard plan with a grotto, slide or waterfall | Custom submittal with sealed engineering; 100% plan review | TRT 00914; Fee Schedule plan review |
| Pool with a gas heater on a standard plan | Separate gas line permit | Pool/Spa Permit Application TRT 00916 |
| Pool edge within 5 ft of a property line, or in a utility easement | Survey waiver, or utility encroachment letter | TRT 00913 |
| Changing a door, window or fence that is part of an existing pool barrier | Permit; new work must meet current barrier rules | TRT 00144 |
How Much Does a Pool Permit Cost in Phoenix?
The 2026 Development Fee Schedule (Appendix A.2, effective January 20, 2026) says swimming pools are subject to a minimum permit fee of $234, and a $30 aquatics program surcharge is added to every swimming pool permit. In practice the valuation rule sets the number: the city's Miscellaneous Construction guide puts the residential pool minimum at $21,000, and Table A charges $303 on the first $10,000 plus $10 for each additional $1,000, so the permit fee on a minimum pool is $303 + 11 x $10 = $413, plus the $30 surcharge. A standard plan pays a plot plan review, listed at $98 per permit for single-family dwellings on the 2026 schedule, for about $541 in city fees. A custom pool pays a plan review fee of 100% of the permit fee, so a $40,000 custom pool costs $603 permit + $603 review + $30, about $1,236. A pool heater adds $1,050 of valuation and a grotto with waterfall $5,000. Ramadas, cabanas and shade structures are separate permits.
The Barrier Is the Inspection That Matters
Phoenix inspects pools twice, pre-gunite and pre-plaster, and the barrier is checked at pre-plaster. The city's Pool Barriers Requirements sheet, updated for the 2024 ISPSC, requires a fence 5 feet high measured from the outside, no opening a 4-inch ball can pass through, no more than 2 inches of clearance under the fence (4 inches over concrete), horizontal members at least 45 inches apart, chain link or mesh openings no larger than 1 3/4 inches, and gates that are self-closing, self-latching, swing outward and latch at least 54 inches above ground. Where the house wall forms part of the barrier, every door to the pool must self-close and self-latch, doggie doors are prohibited, sliding doors need an approved closer or a separate fence, and window latches must be 54 inches up. Mesh fencing is accepted only if it meets ASTM F2286 at 60 inches with a 1-inch clearance. Zoning requires pools to sit at least 3 feet from exterior property lines, and the city's FAQ says a standard plan review averages 5 days.
Who Files and How
The Pool and Spa Residential Permit Application asks for the standard plan number or engineering, dimensions, pump and heater data, fence heights and whether the applicant is the owner or an ROC-licensed contractor; applications and plot plans go to plotplan.submittals@phoenix.gov, and residential permits are also handled in SHAPE PHX. Standard plan submittals include two sealed letters from the engineer of record permitting use of the plan. An owner-occupant may build under ARS 32-1121.A.5. Skipping the permit costs an investigation fee of at least $250 plus a doubled permit fee, and the barrier rules apply regardless.
How to Get a Pool Permit in Phoenix
Decide standard or custom
An approved standard plan used as-is is a standard submittal; any structural change, grotto, waterfall or slide makes it custom with sealed engineering.
Draw the plot plan
To scale with north arrow, property lines, all structures, setbacks, pool and equipment footprint, easements and the barrier location; survey waiver if within 5 ft of a line.
Submit the Pool and Spa Residential Permit Application
Email the application and plot plan to plotplan.submittals@phoenix.gov or file in SHAPE PHX; standard plans add two sealed permission letters.
Pay review and permit fees
$98 plot plan review for a standard plan (100% plan review for custom), then the Table A permit fee plus the $30 aquatics surcharge.
Pre-gunite and pre-plaster inspections
Barrier, gates, doors and windows are verified at pre-plaster; an adult must be home if the house wall is part of the barrier.