Pool Permit in Alameda County, California
It depends
Sometimes, depending on the project
Before installing any in-ground pool, or any pool 24 inches or more deep, holding more than 5,000 gallons, or not entirely above ground, in unincorporated Alameda County; also before removing or backfilling an existing in-ground pool
By Mario Bailey, verified against official sources
Quick answer
Alameda County exempts a prefabricated swimming pool accessory to a house from a building permit only when it is less than 24 inches deep, does not exceed 5,000 gallons, and is installed entirely above ground. Every other residential pool, including any in-ground pool, requires a building permit from the Building Inspection Department. A building permit is also required to remove or backfill an existing in-ground pool, and at final inspection the owner or pool contractor must provide a signed letter and a photo showing at least 50% of the bottom of the pool has been removed or broken to allow proper drainage. This applies to unincorporated Alameda County; the incorporated cities set their own pool permitting.
Typical threshold: Depth of a prefabricated pool at which the building permit exemption stops; the exemption also requires the pool to hold no more than 5,000 gallons and to be installed entirely above ground.
Who is pulling this permit?
Apply yourself
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?
When a permit is usually needed
Before installing any in-ground pool, or any pool 24 inches or more deep, holding more than 5,000 gallons, or not entirely above ground, in unincorporated Alameda County; also before removing or backfilling an existing in-ground pool
What a pool permit costs in Alameda County
How Alameda County compares in California
Across the California jurisdictions we have verified, the same threshold runs from 18 to 24, so a project that is exempt here may still need a permit one county over.
| Jurisdiction | Permit needed? | Threshold |
|---|---|---|
| Alameda Countythis page | It depends | Depth of a prefabricated pool at which the building permit exemption stops; the exemption also requires the pool to hold no more than 5,000 gallons and to be installed entirely above ground |
| Contra Costa County | It depends | depth of a prefabricated pool accessory to a one or two family dwelling that is installed entirely above ground and holds no more than 5,000 gallons |
| Fresno County | It depends | Prefabricated pools accessory to a Group R-3 occupancy are exempt from a building permit only when they are less than 24 inches deep, hold not more than 5,000 gallons, and are installed entirely above ground |
| Los Angeles | Permit required | Not specified |
| Los Angeles County | It depends | depth of a prefabricated pool or other body of water accessory to a one- or two-family (Group R-3) home; the same exemption also reaches pools that do not exceed 5,000 gallons and are installed entirely above adjacent grade |
| Sacramento County | It depends | depth of water the structure holds; the permit exemption is limited to prefabricated pools |
| San Diego County | It depends | The only exempt pool is a prefabricated pool accessory to a one- or two-family dwelling that is less than 18 inches deep, holds no more than 5,000 gallons, and sits entirely above ground; everything else needs a permit. |
Closest pool permit thresholds outside California
Jurisdictions we cover whose limit sits nearest Alameda County's 24 inches of water depth.
- Arlington, Texas, depth of a prefabricated inflatable swimming pool
- Buffalo, New York, pool designed for that water depth or more, or installed other than entirely above ground, at a one- or two-family dwelling or townhouse
- Cook County, Illinois, prefabricated above-ground pools accessory to detached single-family dwellings
- El Paso, Texas, Pools and ponds over 24 inches of depth require a permit, as do above ground pools containing 5,000 gallons of water or more.
How to apply in Alameda 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).
- 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).
General submittal guidance from 2021 IRC R326 (adopting the ISPSC), ISPSC 2021 Section 305, and NEC 2020 Article 680. Source. Alameda County Public Works Agency, Building Inspection Department sets the exact checklist for Alameda County.
Where to apply in Alameda County:
Alameda County Public Works Agency, Building Inspection Department
- 399 Elmhurst Street, Room 141, Hayward, CA 94544-1395
- Phone: 510-670-5440
- Email: permitbid@acpwa.org
Inspections and closing out your permit
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).
Schedule each inspection in advance and pass the final before you use the work or close the permit. Request inspections through the Alameda County permit portal or by phone at 510-670-5440.
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 Alameda County
- Confirm the requirement. Sometimes, depending on the project. Typical threshold: Depth of a prefabricated pool at which the building permit exemption stops; the exemption also requires the pool to hold no more than 5,000 gallons and to be installed entirely above ground. Usually needed: Before installing any in-ground pool, or any pool 24 inches or more deep, holding more than 5,000 gallons, or not entirely above ground, in unincorporated Alameda County; also before removing or backfilling an existing in-ground pool.
- Budget the fee. No swimming pool line item appears in the Building Inspection Department Service Fee Schedule (Schedule A, effective July 1, 2024). A pool permit is priced from construction valuation on the Schedule A table, plus building plan review at '80% of the Building Permit fees, $140.00 minimum', plus a $20.00 single-permit processing fee or $30.00 for a combo permit, plus state Strong Motion (SMIP) fees of '$10 per $100,000 valuation' for residential work and CBSC fees of '$1 per $25,000 valuation and $1 minimum'. Official fee schedule.
- Apply. 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 Alameda County permit portal.
- Keep the office details handy. Alameda County Public Works Agency, Building Inspection Department. Phone: 510-670-5440. Address: 399 Elmhurst Street, Room 141, Hayward, CA 94544-1395.
- Plan for inspections. 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 Alameda County?
- Alameda County exempts a prefabricated swimming pool accessory to a house from a building permit only when it is less than 24 inches deep, does not exceed 5,000 gallons, and is installed entirely above ground. Every other residential pool, including any in-ground pool, requires a building permit from the Building Inspection Department. A building permit is also required to remove or backfill an existing in-ground pool, and at final inspection the owner or pool contractor must provide a signed letter and a photo showing at least 50% of the bottom of the pool has been removed or broken to allow proper drainage. This applies to unincorporated Alameda County; the incorporated cities set their own pool permitting. Depth of a prefabricated pool at which the building permit exemption stops; the exemption also requires the pool to hold no more than 5,000 gallons and to be installed entirely above ground. Always confirm with the office before starting.
- How much does a pool permit cost in Alameda County?
- No swimming pool line item appears in the Building Inspection Department Service Fee Schedule (Schedule A, effective July 1, 2024). A pool permit is priced from construction valuation on the Schedule A table, plus building plan review at '80% of the Building Permit fees, $140.00 minimum', plus a $20.00 single-permit processing fee or $30.00 for a combo permit, plus state Strong Motion (SMIP) fees of '$10 per $100,000 valuation' for residential work and CBSC fees of '$1 per $25,000 valuation and $1 minimum'. See the official fee schedule for current amounts.
- Where do you apply for a pool permit in Alameda County?
- You can apply through the Alameda County permit portal or contact the Alameda County Public Works Agency, Building Inspection Department directly. The links are listed on this page.
- Can a homeowner pull a pool permit themselves in Alameda County?
- Under California law (Business & Professions Code 7044(a)-(b); Business & Professions Code 7031.5): California exempts an owner-builder from contractor licensing when the owner personally performs the work, or uses only wage employees, on their own property and does not intend the improvements for sale. A homeowner may also directly hire licensed trade contractors for up to four single-family residences a year, or improve their own principal residence without a general contractor's license, as long as they have actually lived there for the 12 months before the work is finished. Selling a self-built structure within one year of completion creates a rebuttable presumption that it was built for sale, which defeats the exemption, and selling five or more structures within a year makes that presumption conclusive. Separately, every city or county that requires a building permit must also require the applicant to file a signed statement giving their contractor license number or the basis of their claimed exemption; a false or missing statement carries a $500 civil penalty. Confirm how Alameda County applies this before you apply.
From the Library
What else needs a permit in Alameda 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 | Height of a raised deck above adjacent grade at which the building permit exemption stops, and only where the deck is not over a basement or story below and is not part of an accessible route | No deck line item appears in the Building Inspection Department Service Fee Schedule... |
| Electrical Permit | Permit required | Not specified | Building Inspection Department Service Fee Schedule (Schedule A, effective July 1... |
| Fence Permit | It depends | Permit exemption height limit: 7 feet for fences of light materials, 5 feet 9 inches for fences of concrete, masonry, or similar heavy materials | No fence line item appears in the Building Inspection Department Service Fee Schedule... |
| HVAC Permit | Permit required | Not specified | Building Inspection Department Service Fee Schedule (Schedule A, effective July 1... |
| Patio Permit | It depends | Total area of each sunshade structure, including any roofed area, at which the building permit exemption stops; the exemption also requires an average height of not more than 10 feet | No patio cover line item appears in the Building Inspection Department Service Fee... |
| Plumbing Permit | Permit required | Not specified | Building Inspection Department Service Fee Schedule (Schedule A, effective July 1... |
| Roof Replacement Permit | It depends | Aggregate roof area repaired on a previously permitted roof, at which the building permit exemption stops | No re-roof line item appears in the Building Inspection Department Service Fee Schedule... |
| Shed Permit | It depends | Floor area of a one-story detached tool or storage shed accessory to a house, at which the building permit exemption stops | No shed line item appears in the Building Inspection Department Service Fee Schedule... |
| Solar Permit | Permit required | Not specified | Building Inspection Department Service Fee Schedule (Schedule A, effective July 1... |
Pool Permit in other California localities
Everything above, sourced
Code references
National and state model-code sections the general guidance on this page is drawn from. They are not Alameda County documents; the office above sets the local rules.
Verified by a person against the sources above on , not confirmed with Alameda County Public Works Agency, Building Inspection Department. Rules change; confirm before you build. How we verify.
Last checked: Report an error on this page
Compare Pool Permit requirements across California localities
Permit office
Alameda County Public Works Agency, Building Inspection Department
510-670-5440Permit portal