Do you need a pool permit?
By Mario Bailey Last checked
It depends entirely on where you live, and the differences are larger than most national guides admit. We read the code, ordinance, or fee schedule published by each of 137 US counties and cities and recorded what it actually says.
Where are you building?
The rule is set locally and the spread is wide, so start with your own jurisdiction. We have read the published rule in 137 of them.
The short answer
Of the 137 jurisdictions where we have confirmed the rule, 57 require a permit outright, 80 require one only in certain conditions.
The most common published threshold is 24 inches, used by 49 of the 58 jurisdictions that state a threshold in inches. That leaves 9 of them on a different number, which is why a national rule of thumb is not a safe answer for your own address.
The size thresholds, and how much they disagree
82 of the 137 jurisdictions publish a specific number. They do not all measure the same thing: 3 incompatible units are in use for pool permits (inches, sq ft, gallons), and they cannot be averaged into a single figure.
Measured in inches (58 jurisdictions)
| Threshold | Jurisdictions | Where |
|---|---|---|
| 18 inches | 6 | Chandler, Pima County, Los Angeles County, Sacramento County, San Diego County, Indianapolis |
| 24 inches | 49 | Alameda County, Contra Costa County, Fresno County, Riverside County, Santa Clara County, Aurora, Brevard County, Charlotte County, Hernando County, Lee County, Leon County, Manatee County, Marion County, Palm Beach County, Polk County, Seminole County, St. Lucie County, DeKalb County, Gwinnett County, Cook County, Baton Rouge, Prince George's County, Worcester, Detroit, Grand Rapids, St. Louis, Jersey City, Buffalo, Rochester, Wake County, Cincinnati, Portland, Philadelphia, Pittsburgh, Charleston, Memphis, Arlington, Austin, El Paso, Lubbock, Plano, Virginia Beach, Bellevue, Clark County, King County, Pierce County, Snohomish County, Tacoma, Thurston County |
| 30 inches | 1 | Williamson County |
| 42 inches | 1 | Lake County |
| 48 inches | 1 | Chicago |
Measured in sq ft (12 jurisdictions)
| Threshold | Jurisdictions | Where |
|---|---|---|
| 150 sq ft | 10 | St. Johns County, Arlington County, Chesterfield County, Culpeper County, Fairfax County, Fauquier County, Henrico County, Orange County, Prince William County, Stafford County |
| 250 sq ft | 1 | Baltimore County |
| 400 sq ft | 1 | New York City |
Measured in gallons (9 jurisdictions)
| Threshold | Jurisdictions | Where |
|---|---|---|
| 1500 gallons | 1 | Cleveland |
| 3965 gallons | 1 | Milwaukee |
| 5000 gallons | 7 | Peoria, San Diego, Saint Paul, Kansas City, Corpus Christi, Dallas, Fort Worth |
Measured in feet in depth (1 jurisdiction)
| Threshold | Jurisdictions | Where |
|---|---|---|
| 2 feet in depth | 1 | Tulsa |
Measured in inches below grade (1 jurisdiction)
| Threshold | Jurisdictions | Where |
|---|---|---|
| 18 inches below grade | 1 | Town of Brookhaven |
Measured in inches in side wall height (1 jurisdiction)
| Threshold | Jurisdictions | Where |
|---|---|---|
| 24 inches in side wall height | 1 | Sterling Heights |
Thresholds are recorded as the jurisdiction states them. Which side of the number triggers the permit varies, so read your own locality's page before relying on one.
What a pool permit costs
131 of our pool permit rows carry a fee answer taken from the jurisdiction's own published schedule, across 131 localities. There is no single number to quote, and not because we did not look: jurisdictions price this permit in genuinely different ways. Some charge a flat fee, some a percentage of the job's assessed valuation, some a rate per square foot, and some do not price it at all because the work is permitted by a state agency or a utility instead. Each row below is that jurisdiction's own wording.
| Locality | What the schedule says |
|---|---|
| Alameda County California | No swimming pool line item appears in the Building Inspection Department Service Fee Schedule (Schedule A, effective... |
| Kansas City Missouri | The pool building permit is priced from the one- and two-family valuation table in Sec. |
| Charlotte North Carolina | The county building permit is priced off total construction permit value under the LUESA Fee Ordinance (revised July... |
| Greensboro North Carolina | Building Permit Fee Schedule, Document #1005 dated 12/19/24: 'Minimum permit fee - $85'. |
| Charleston South Carolina | The pool guideline says the Application Fee, Plan Review Fee and Building Permit Fee all come from page 4 of the... |
| Williamson County Tennessee | No pool-specific line |
| Charlotte County Florida | At application: $94 flat fee for above-ground pools or $200 for in-ground pools, plus a 0.025 x building-fee surcharge |
| Pinellas County Florida | $550 base covers building, electric and plan review for a pool, spa or hot tub with deck up to $40,000 in value, plus... |
| Tulsa Oklahoma | Priced as a building permit from declared valuation: application fee $64.00 for $0 to $15,000.00 of declared valuation... |
| Contra Costa County California | The Building Valuation Data Supplement sets a "Swimming pool, lump sum of: $39,514.98" valuation, and the permit fee... |
| Detroit Michigan | Building permit fees are based on project cost under the BSEED Fee Schedule effective January 1, 2024, modified... |
| Portland Oregon | Building and Other Permits Fee Schedule for the City of Portland, effective July 10, 2026: Building Permit Fee is... |
A sample of the schedule-verified rows. Full figures, sources, and dates are on each locality's page, and the whole fee study is at what building permits cost.
Pool Permit rules by state
27 states, 137 counties and cities. Pick your state for the locality-by-locality comparison, or go straight to your county.
| State | Localities | Required | Conditional | Not required | Thresholds published |
|---|---|---|---|---|---|
| Florida | 28 | 19 | 9 | 0 | 150 sq ft, 24 inches, 42 inches |
| California | 14 | 5 | 9 | 0 | 18 inches, 24 inches, 5000 gallons |
| Virginia | 12 | 2 | 10 | 0 | 150 sq ft, 24 inches |
| Texas | 10 | 2 | 8 | 0 | 24 inches, 5000 gallons |
| Arizona | 8 | 6 | 2 | 0 | 18 inches, 5000 gallons |
| Washington | 8 | 1 | 7 | 0 | 24 inches |
| New York | 5 | 1 | 4 | 0 | 18 inches below grade, 24 inches, 400 sq ft |
| Georgia | 4 | 2 | 2 | 0 | 24 inches |
| Maryland | 4 | 2 | 2 | 0 | 24 inches, 250 sq ft |
| Michigan | 4 | 1 | 3 | 0 | 24 inches, 24 inches in side wall height |
| North Carolina | 4 | 3 | 1 | 0 | 24 inches |
| Ohio | 4 | 2 | 2 | 0 | 1500 gallons, 24 inches |
| Colorado | 3 | 2 | 1 | 0 | 24 inches |
| Tennessee | 3 | 1 | 2 | 0 | 24 inches, 30 inches |
| Illinois uniform | 2 | 0 | 2 | 0 | 24 inches, 48 inches |
| Indiana | 2 | 1 | 1 | 0 | 18 inches |
| Louisiana | 2 | 1 | 1 | 0 | 24 inches |
| Massachusetts | 2 | 1 | 1 | 0 | 24 inches |
| Minnesota | 2 | 1 | 1 | 0 | 5000 gallons |
| Missouri uniform | 2 | 0 | 2 | 0 | 24 inches, 5000 gallons |
| Nevada uniform | 2 | 2 | 0 | 0 | None published |
| New Jersey uniform | 2 | 0 | 2 | 0 | 24 inches |
| Oklahoma | 2 | 1 | 1 | 0 | 2 feet in depth |
| Oregon uniform | 2 | 0 | 2 | 0 | 24 inches |
| Pennsylvania uniform | 2 | 0 | 2 | 0 | 24 inches |
| South Carolina uniform | 2 | 0 | 2 | 0 | 24 inches |
| Wisconsin | 2 | 1 | 1 | 0 | 3965 gallons |
A state marked uniform applies the same verdict in every locality we checked there, usually because a statewide code forbids local divergence.
How pool permits work, start to finish
Applying
A residential pool permit application covers both construction and safety: a scaled site plan, structural plans for the pool, a barrier plan showing how the pool will be enclosed, and an electrical plan covering bonding and the equipment disconnect.
- Pool and spa design and construction fall under the residential code chapter that folds in the swimming pool and spa code, and permit review checks plans against that chapter (IRC R326).
- The site plan must show pool equipment such as pumps, filters, and heaters set back at least 36 inches from the outside of the required barrier (ISPSC 305.2.9).
- For an in-ground pool, engineered structural plans covering the shell and reinforcing steel, with the responsible structural engineer's license information, are a standard part of the submittal (per official pool submittal checklists).
- A barrier plan identifying the fence, pool structure, or dwelling wall that will enclose the pool must be submitted and must comply with the code's barrier chapter (ISPSC 305).
- Electrical plans must show the pool's equipotential bonding design, since the shell, perimeter surfaces, and metal fittings within 5 feet of the water must all tie into a common bonding grid (NEC 680.26).
- The electrical plan must also show a disconnecting means for the pool equipment that is readily accessible and within sight of the equipment (NEC 680.13).
Inspections and close-out
Pool inspections track the concrete pour: the steel and bonding grid are checked before gunite or shotcrete goes in, bonding is checked again before decking is poured, and the permanent barrier and remaining electrical work are checked at final before the pool can be filled and used.
- Before gunite or shotcrete is sprayed, the inspector checks the rebar against the engineered plans and confirms the equipotential bonding wire is stubbed out and tied into the steel, since it will be buried in concrete afterward (NEC 680.26).
- A bonding inspection separately confirms coping, decking, ladders, handrail cups, and any other metal within 5 feet of the water are tied to the bonding grid, and it must pass before coping is installed (NEC 680.26).
- A temporary barrier at least 4 feet high must enclose the site from the moment excavation starts until the permanent barrier is finished, and inspectors check for it throughout construction (ISPSC 305.1.1).
- A pre-plaster inspection confirms the circulation equipment's electrical work is installed and all bonding is complete before the pool's interior finish goes on (NEC 680.26).
- At final inspection the permanent barrier is checked against the code's requirements and the equipment and cover-mechanism bonding must be complete before the pool can be filled and used (ISPSC 305, NEC 680.26).
General practice; your locality's page carries its own process, fees, and portal. Sources: 2021 IRC R326 (adopting the ISPSC), ISPSC 2021 Section 305, and NEC 2020 Article 680, NEC 2020 Article 680.26 (equipotential bonding) and ISPSC 2021 Section 305 (barriers).
Find the pool permit rule where you live
Look up your locality
Hire it out
Before you sign, ask the contractor:
- Who pulls the permit, you or me, and is the permit fee included in the bid?
- Which inspections will this job need, and who meets the inspector on site?
- Is your contractor license active in this locality, and under which business name?