Pool Permit in Pierce County, Washington
It depends
Sometimes, depending on the project
Before installing an in-ground pool, or any prefabricated pool 24 inches deep or deeper, in unincorporated Pierce County
Issued byPierce County Planning and Public Works
By Mario Bailey, verified against official sources
Quick answer
In unincorporated Pierce County a prefabricated swimming pool accessory to a single family residence does not require a building permit if it is less than 24 inches deep; Pierce County sets no separate gallon volume cap for this exemption. Self-contained spas and hot tubs installed entirely above ground and not connected to the potable water system or to a septic or sewer drain are separately exempt regardless of depth. In-ground pools and pools 24 inches deep or deeper require a building permit applied for through the PALS Online permit portal, and all pools, whether exempt or permitted, must still meet zoning and pool barrier safety requirements.
Typical threshold: Prefabricated swimming pools accessory to a single family residence (Group R-3 occupancy) are exempt if less than 24 inches deep, with no separate gallon volume cap; in-ground pools and pools 24 inches deep or deeper require a building permit. Self-contained spas and hot tubs installed entirely above ground and not connected to the potable water system or a septic or sewer drain are separately exempt regardless of depth.
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When a permit is usually needed
Before installing an in-ground pool, or any prefabricated pool 24 inches deep or deeper, in unincorporated Pierce County
What your pool permit must meet in Washington
Washington's 2021 Residential Code (WAC 51-51, effective statewide March 15, 2024) requires backyard swimming pools, spas, and hot tubs at single-family and duplex homes to be designed and built to the 2021 International Swimming Pool and Spa Code, incorporated by direct statewide reference rather than left to local option.
- The design and construction of swimming pools, spas, and other aquatic recreation facilities must comply with the 2021 International Swimming Pool and Spa Code whenever the facility falls into one of three defined residential categories (WAC 51-51-0327).
- That mandatory ISPSC standard covers pools for the sole use of a single-family dwelling's residents and guests, the sole use of a resident-owned duplex, or a facility used exclusively for medical physical therapy under a licensed practitioner's supervision (WAC 51-51-0327).
- Any other water recreation facility outside those residential categories is regulated under separate Washington Department of Health rules, not the Residential Code (WAC 246-260; WAC 51-50-3109).
Based on 2021 International Swimming Pool and Spa Code (ISPSC), incorporated by WAC 51-51-0327 into the 2021 Washington State Residential Code. Read the code. Local amendments can be stricter; confirm the current requirement with your office before you build.
What a pool permit costs in Pierce County
How Pierce County compares in Washington
| Jurisdiction | Permit needed? | Threshold |
|---|---|---|
| Bellevue | It depends | swimming pools over 24 inches deep require a permit with plan review; above-ground pools 24 inches or less may be exempt |
| Clark County | It depends | A permit is required for any structure intended for swimming or recreational bathing that contains water over 24 inches deep, including in-ground, aboveground and on-ground pools, hot tubs and spas. |
| King County | It depends | prefabricated above-ground pools less than 24 inches deep and not exceeding 5000 gallons are exempt; all other pools require a building permit in unincorporated King County |
| Pierce Countythis page | It depends | Prefabricated swimming pools accessory to a single family residence (Group R-3 occupancy) are exempt if less than 24 inches deep, with no separate gallon volume cap; in-ground pools and pools 24 inches deep or deeper require a building permit. Self-contained spas and hot tubs installed entirely above ground and not connected to the potable water system or a septic or sewer drain are separately exempt regardless of depth. |
| Snohomish County | It depends | prefabricated swimming pools regulated under the IRC (one- and two-family dwellings) exempt if less than 24 inches deep, with no gallon-volume cap; in-ground pools or pools 24 inches deep or more require a building permit |
| Tacoma | It depends | prefabricated above-ground pools less than 24 inches deep and not greater than 5000 gallons are exempt; all other pools require a building permit |
| Thurston County | It depends | Pools are exempt only if prefabricated, entirely above ground, less than 24 inches deep, and under 5,000 gallons capacity. |
Closest pool permit thresholds outside Washington
Jurisdictions we cover whose limit sits nearest Pierce County's 24 inches.
- Brevard County, Florida, Permits are issued for in-ground pools and spas, and for above-ground pools with a depth of 24 inches or greater.
- Charlotte County, Florida, This residential pool/spa permit type includes spas, swim spas, and above-ground pools that are 24 inches or greater in depth.
- Hernando County, Florida, Manufactured pools less than 24 inches deep are exempt from a building permit
- Lee County, Florida, All in-ground pool construction or renovation requires a permit; an above-ground pool requires a permit when its water depth is 24 inches or more.
How to apply in Pierce County
In Pierce County, 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.
What most pool permit applications include:
- 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).
- For Pierce County, 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).
- For Pierce County, 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).
- For Pierce County, 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).
General submittal guidance from 2021 IRC R326 (adopting the ISPSC), ISPSC 2021 Section 305, and NEC 2020 Article 680. Source. Pierce County Planning and Public Works sets the exact checklist for Pierce County.
Where to apply in Pierce County:
Pierce County Planning and Public Works
- 2401 S 35th St, Tacoma, WA 98409
- Phone: (253) 798-3739
- Email: PCPermits@PierceCountyWa.gov
Pool Permit in Pierce County compared with nearby Washington localities
| Locality | Permit needed? | Threshold | What each Washington schedule says | Verified |
|---|---|---|---|---|
| Pierce County | It depends | Prefabricated swimming pools accessory to a single family residence (Group R-3 occupancy) are exempt if less than 24 inches deep, with no separate gallon volume cap; in-ground pools and pools 24 inches deep or deeper require a building permit. Self-contained spas and hot tubs installed entirely above ground and not connected to the potable water system or a septic or sewer drain are separately exempt regardless of depth. | Where a permit is required: in-ground pool permit $230.00 | |
| Bellevue | It depends | swimming pools over 24 inches deep require a permit with plan review; above-ground pools 24 inches or less may be exempt | Pool equipment electrical inspection fee of $94 without plan review per Table 7 of... | |
| Clark County | It depends | A permit is required for any structure intended for swimming or recreational bathing that contains water over 24 inches deep, including in-ground, aboveground and on-ground pools, hot tubs and spas. | Fees are established by county ordinance and calculated automatically during the... | |
| King County | It depends | prefabricated above-ground pools less than 24 inches deep and not exceeding 5000 gallons are exempt; all other pools require a building permit in unincorporated King County | Most permit fees increased approximately 14% on January 1 2026 plus a $126 application... | |
| Seattle | Permit required | Not specified | An unenclosed pool accessory to a single-family or duplex home is a flat fee of four... |
Inspections and closing out your permit
In Pierce County, 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.
- In Pierce County: 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).
- In Pierce County: 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).
- In Pierce County: 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).
- In Pierce County: 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).
- In Pierce County: 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).
Schedule each inspection in advance and pass the final before you use the work or close the permit. Request inspections through the Pierce County permit portal or by phone at (253) 798-3739.
Inspection sequence from NEC 2020 Article 680.26 (equipotential bonding) and ISPSC 2021 Section 305 (barriers). Source. An open permit left un-inspected can surface later in a title search or home sale.
Your Pool Permit checklist for Pierce County
- Confirm the requirement. Sometimes, depending on the project. Typical threshold: Prefabricated swimming pools accessory to a single family residence (Group R-3 occupancy) are exempt if less than 24 inches deep, with no separate gallon volume cap; in-ground pools and pools 24 inches deep or deeper require a building permit. Self-contained spas and hot tubs installed entirely above ground and not connected to the potable water system or a septic or sewer drain are separately exempt regardless of depth. Usually needed: Before installing an in-ground pool, or any prefabricated pool 24 inches deep or deeper, in unincorporated Pierce County.
- Budget the fee. Where a permit is required: in-ground pool permit $230.00; aboveground pool permit $58.00 if valued under $500 or $115.00 if valued $500 or more (PCC Table 17C.10-1-G, 2026 fees). Official fee schedule.
- Apply. In Pierce County, 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. Start at the Pierce County permit portal.
- Keep the office details handy. Pierce County Planning and Public Works. Phone: (253) 798-3739. Address: 2401 S 35th St, Tacoma, WA 98409.
- Plan for inspections. In Pierce County, 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.
Compiled from the official sources on this page. Last checked .
Frequently asked questions
- Do you need a pool permit in Pierce County?
- In unincorporated Pierce County a prefabricated swimming pool accessory to a single family residence does not require a building permit if it is less than 24 inches deep; Pierce County sets no separate gallon volume cap for this exemption. Self-contained spas and hot tubs installed entirely above ground and not connected to the potable water system or to a septic or sewer drain are separately exempt regardless of depth. In-ground pools and pools 24 inches deep or deeper require a building permit applied for through the PALS Online permit portal, and all pools, whether exempt or permitted, must still meet zoning and pool barrier safety requirements. Prefabricated swimming pools accessory to a single family residence (Group R-3 occupancy) are exempt if less than 24 inches deep, with no separate gallon volume cap; in-ground pools and pools 24 inches deep or deeper require a building permit. Self-contained spas and hot tubs installed entirely above ground and not connected to the potable water system or a septic or sewer drain are separately exempt regardless of depth. Always confirm with the office before starting.
- How much does a pool permit cost in Pierce County?
- Where a permit is required: in-ground pool permit $230.00; aboveground pool permit $58.00 if valued under $500 or $115.00 if valued $500 or more (PCC Table 17C.10-1-G, 2026 fees). See the official fee schedule for current amounts.
- Where do you apply for a pool permit in Pierce County?
- You can apply through the Pierce County permit portal or contact the Pierce County Planning and Public Works directly. The links are listed on this page.
- Can a homeowner pull a pool permit themselves in Pierce County?
- Under Washington law (RCW 18.27.090(11), (12); RCW 19.28.261(1); RCW 18.106.150(1)): Washington lets homeowners do their own construction work, including the licensed trades, on property they own. RCW 18.27.090(12) exempts any person working on his or her own property from contractor registration, but the exemption does not apply if you do contractor type work for the purpose of selling, demolishing, or leasing the property, and the separate owner exemption in RCW 18.27.090(11) is lost if you sell or lease improved property owned less than 12 months. For electrical work, RCW 19.28.261 lets you wire your own residence, farm, or place of business without an electrician license, unless the work is on construction of a new building intended for rent, sale, or lease, or on property offered for sale within 12 months after you obtained it. RCW 18.106.150(1) gives the same kind of exemption for plumbing work at your own residence, farm, or place of business. These exemptions waive the license, not the permit: an owner doing electrical work still buys an L&I electrical work permit and passes inspection (WAC 296-46B-901), and building and plumbing permits still come from your local building department. Confirm how Pierce County applies this before you apply.
From the Library
What else needs a permit in Pierce County
Every other permit type we have verified for this jurisdiction, with the rule that applies here.
| Project | Permit needed? | Threshold | Typical fee |
|---|---|---|---|
| Deck Permit | It depends | Decks not more than 30 inches above grade at any point, and not over any story or basement below, are exempt; Pierce County code sets no separate floor area cap for decks; taller decks, or decks over a story or basement, require a building permit. | Building permit fee follows PCC Table 17C.10-1-B (valuation based): $69.00 for... |
| Electrical Permit | Permit required | Not specified | No county fee |
| Fence Permit | It depends | Fences 6 feet or less in height, measured from grade, are exempt; taller fences require a building permit. | Building permit fee follows PCC Table 17C.10-1-B (valuation based): $69.00 for... |
| HVAC Permit | Permit required | Not specified | Issue each mechanical permit fee $58.00, plus unit fees per equipment type (for example... |
| Patio Permit | It depends | At-grade patios, treated the same as exempt sidewalks and driveways, are exempt if not more than 30 inches above grade at any point and not over any story or basement below; an attached, roofed patio cover requires a building permit regardless of size. | Attached patio covers use the same valuation based building permit fee as other building... |
| Plumbing Permit | Permit required | Not specified | Issue each plumbing permit fee $58.00, plus unit fees per fixture (for example $8.00 per... |
| Roof Replacement Permit | It depends | Re-roofing of a Group R, Division 3 one or two family dwelling, or a Group U private garage, carport, or accessory structure, with a roof slope greater than 2:12, is exempt if the total load of all roof coverings does not exceed 7.5 lbs per sq ft; the exemption does not apply to vegetated roofs or to replacement of roof sheathing. | Building permit fee follows PCC Table 17C.10-1-B (valuation based): $69.00 for... |
| Shed Permit | It depends | One-story detached accessory structure used as an unheated tool or storage shed, playhouse, or similar use is exempt if its floor area is 200 sq ft or less and it is at least 3 feet from a property line; larger or closer structures require a building permit. | Building permit fee follows PCC Table 17C.10-1-B (valuation based): $69.00 for... |
| Solar Permit | Permit required | Not specified | Residential rooftop solar panel building permit base fee $173.00, plus $201.00 for... |
Pool Permit in other Washington localities
Everything above, sourced
Code references
National and state model-code sections the general guidance on this page is drawn from. They are not Pierce County documents; the office above sets the local rules.
How this pool permit page for Pierce County was verified. 3 official sources: pierce.county.codes, piercecountywa.gov, piercecountywa.gov; fee schedule: official document. Last checked by Mario Bailey, not confirmed with Pierce County Planning and Public Works. Rules change; confirm before you build. How we verify.
Last checked: Report an error on this page
Compare Pool Permit requirements across Washington localities
Washington rule changes