Kitsap County occupies the peninsula across Puget Sound from Seattle, with a long shoreline and steep ground behind much of it. Its site development thresholds are drawn tightly as a result, and they catch projects that would be routine elsewhere.
The Department of Community Development administers and enforces the Kitsap County Building and Fire Code, its own combined instrument regulating construction and site work within the unincorporated boundaries of the county.
This guide covers unincorporated Kitsap County. Bremerton, Port Orchard, Poulsbo and Bainbridge Island are incorporated and permit separately — none of them appears elsewhere in this series, since Bremerton falls below the municipal population floor.
Four separate triggers for a site development activity permit. One is required for grading that moves 150 cubic yards or more of earth; for grading producing a slope steeper than three to one with a total height over 5 feet; for any land clearing or grading on slopes steeper than 30 per cent, or within the mandatory setback of a wetland, stream, lake or Puget Sound; and for development requiring connection to a public storm drainage system.
What requires a building permit in Kitsap County?
Washington has a mandatory statewide building code. The codes enumerated in chapter 19.27 RCW, the State Building Code Act, are adopted and amended by the State Building Code Council within the Department of Enterprise Services, and they are required in all cities and counties — local government administers and enforces them rather than deciding whether to have them. A city or county may make the state code stricter but cannot opt out of it, and local changes affecting houses or apartments need State Building Code Council approval. So the question in Kitsap County is not whether a code applies, but which edition is in force and what Kitsap County Community Development has added to it.
Permit required
- New buildings, additions, alterations and change of occupancy or use
- Structural alterations, load-bearing changes, foundations, decks and retaining walls
- Plumbing work under the Uniform Plumbing Code as adopted by the state
- Mechanical and HVAC change-outs, fuel gas work and ventilation
- Work affecting the Washington State Energy Code envelope or systems
- Re-roofing above the exempt scope, demolition, and work in critical areas
Often exempt
- Ordinary repairs and maintenance replacing materials in kind
- Small accessory structures below the code threshold, where zoning allows
- Painting, flooring, cabinetry and other finish work
- Like-for-like fixture swaps with no alteration to piping
Local amendments, fee schedules and exempt thresholds differ from one jurisdiction to the next, so an exempt list from a neighbouring city is not reliable. An exemption from a building permit is never an exemption from zoning, critical areas review, the energy code or a trade permit. Confirm scope with Kitsap County Community Development before work starts.
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Get a free quote →Local rules worth knowing
Water has to be proved rather than assumed on a rural parcel: evidence of an adequate water supply is required, and the county accepts it in one of three forms — a water right permit from the state ecology department, a letter from an approved water purveyor, or an accepted building site application from the county public health district
Washington has a mandatory statewide building code under chapter 19.27 RCW that every city and county enforces and may make stricter; electrical permits come from the Department of Labor and Industries unless the city runs its own programme or Tacoma Power serves the site. Building codes in Washington
Who handles permitting in Kitsap County?
The Department of Community Development is charged with administering and enforcing the Kitsap County Building and Fire Code, retaining inspection personnel, conducting inspections and investigations, issuing permits and maintaining the records and files for unincorporated Kitsap County.
| Detail | Information |
|---|---|
| Department | Kitsap County Department of Community Development |
| Address | 619 Division Street, 2nd Floor, Port Orchard, WA 98366 |
| Phone | (360) 337-5777 |
| Counter hours | Monday to Friday, 9:00 a.m. to noon only (limited service on Friday); applications online only, through the Permit Application Portal |
| Code | Kitsap County Building and Fire Code, a single combined instrument |
| Site development | Required at defined grading, slope, drainage and setback thresholds |
| Water supply | Evidence required in one of three accepted forms |
| Fee changes | Require a public hearing before the board of county commissioners |
Fee changes are unusually protected. The public participation process for adopting fee policies and the building permit fee schedule is set by resolution and must include a public hearing before the board of county commissioners for any proposed change — so the schedule cannot move administratively between one project and the next.
The department reviews all proposed site development activities itself to determine which permits are required, rather than leaving the applicant to work it out from the thresholds. On a sloped or waterfront parcel that review is worth initiating early, because a site development activity permit is a separate application with its own drainage, grading and erosion control requirements sitting ahead of the building permit.
In 2025, building permits issued in unincorporated Kitsap County authorized 785 new privately owned housing units, 235 of them single-family homes, according to the U.S. Census Bureau Building Permits Survey.
Permit types
Residential permits
Residential permits run through the county online permit centre, with approved plans and permit conditions required on site at all times and the address posted clearly for inspectors and emergency responders. Replacing fixtures and shallow decks and patios fall within the published exemptions, but those exemptions are from the building permit only.
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Get a free quote →How Washington contractor credentials work
A general registration does not let anyone touch the wiring or the pipes. A general contractor needs a licensed electrical contractor and a licensed plumbing contractor for that work, or must hold those licences itself, and each electrical contractor must name a master electrician or a certified administrator. Owners may do their own electrical and plumbing work on their own property, with limits for buildings meant for sale or rent. Verify the registration is active and the bond and insurance current with Kitsap County Community Development and with the department, because registration lapses are common and an expired registration invalidates the credential the permit relies on.
Commercial permits
Commercial and development work will more often meet the site development thresholds, particularly where a connection to public storm drainage is required or where the project counts as a major development. Gates across access need to be reviewed against fire code requirements for emergency access.
Registrations, trade certifications and design professionals
Three credential layers appear on Washington projects: the state contractor registration under chapter 18.27 RCW, which nearly everyone doing the work needs; separate state trade certification for electricians and plumbers, each examined and administered by its own programme; and, on commercial and larger residential work, drawings stamped by a Washington-licensed architect or professional engineer. Confirm what Kitsap County Community Development requires for the specific building before filing.
Most Washington contractors register with the Department of Labor and Industries (with a surety bond and insurance) rather than holding a licence; electrical and plumbing contractors also need an L&I contractor licence. Contractor licensing in Washington
Kitsap County permit costs and fees
Kitsap County fees are set by resolution with a public hearing required for any change, and are based on project valuation, permit type, trade scope and plan review, with impact, utility, fire and public works charges applying on top where relevant.
Washington sets the code statewide but leaves the fee schedule local, so two jurisdictions on the same edition can price the same project very differently. The electrical fee is the one that most often surprises people, because it is paid to L&I rather than with the building permit. Ask Kitsap County Community Development for the schedule in force on your filing date, and confirm the electrical route separately.
Rather talk it over?
Call 1-855-478-4290 →Need a real number for a specific Kitsap County project? Send us the scope, address and valuation and we will identify the edition in force, the local amendments, the electrical route and the fee categories that will apply.
Fees are set locally, plus a small state permit fee (RCW 19.27.085); the electrical fee goes to whichever body issues the electrical permit. Permit fees in Washington
Trade permits and who may pull them
Permit required
- Service installations, panel upgrades, new circuits, solar PV and EV chargers
- New plumbing, repipes, water heater change-outs, fixtures and backflow, plus gas piping (usually on a mechanical or gas permit)
- HVAC installation and change-out, ductwork, venting and commercial kitchen exhaust
- Sprinkler, standpipe and fire alarm work on commercial and multi-family structures
Typically exempt
- Replacing a fixture, switch, receptacle or light with no alteration to wiring or piping
- Clearing a stoppage without replacing or rearranging concealed piping
- Filter, thermostat and routine component service
- Like-for-like appliance repair that does not alter the connection
Plumbing and mechanical permits are local; electrical permits come from the Department of Labor and Industries unless the city runs its own electrical programme or Tacoma Power serves the site. Trade permits in Washington
How to apply for a Kitsap County building permit
Cubic yards moved, slope steepness produced, ground steeper than 30 per cent or protected setbacks, and storm drainage connection.
A state water right permit, a letter from an approved purveyor, or an accepted building site application from public health.
It reviews proposed site development activities itself to determine what is required.
The counter is open nine to noon only, Monday to Friday.
Approved plans and permit conditions must be available at all times, with the address clearly posted.
Gates across access are reviewed for emergency access requirements.
Rather not deal with the Kitsap County building department?
Get a free quote →Review, corrections and what actually causes delay
In Washington the first cause of delay is the energy code, because the state code is its own instrument and more demanding than the international one most designers default to. After that comes critical areas review, which reaches ordinary residential work near wetlands, streams, steep slopes and shorelines and adds its own study and mitigation timeline. Then the electrical split, where a project waits on a local inspection that was never going to happen because the electrical permit sits with L&I. Then edition confusion around the switch-over date, when a new state edition takes effect and local amendments change with it. Build review time into the schedule and confirm the checklist with Kitsap County Community Development before filing.
The state code sets a 180-day default for permit validity, but Kitsap County may change it, so confirm the expiry on phased or delayed work. Permit validity in Washington
Inspections in Kitsap County
Where a permit is required, standard checkpoints include footing and foundation, framing, rough-in plumbing and mechanical, insulation and energy code compliance, fire systems on commercial work, and final, with a certificate of occupancy before the building is used. Most inspections are scheduled within a couple of business days, and a clearly posted address matters here as much for the inspector as for emergency responders.
The point to plan around is that the electrical inspections may be booked with a different body entirely. Because L&I holds the electrical permit here, its inspector attends on the state’s schedule and the local inspector will not sign off electrical work. Sequencing a cover-up around two independent inspection queues is the practical skill on a Washington job.
Do not cover work before the required inspection has been approved. Keep the issued permits — plural — the approved plans and the energy code documentation available on site.
Kitsap County permit search and official resources
Permit records in Washington are split the same way the permits are. Where Kitsap County Community Development is the authority for unincorporated Kitsap County, it holds the building, plumbing and mechanical records — while the electrical record sits with the state Department of Labor and Industries (L&I), which issues the electrical permits and carries out the electrical inspections here. If you are buying, refinancing or renovating, check both, because a clean local record does not mean the electrical work was ever permitted.
Confirm the edition, the local amendments and the electrical route. Washington sets a mandatory statewide minimum under chapter 19.27 RCW, the edition changes on a three-year cycle, and every jurisdiction may make it stricter. All three questions have to be answered for the parcel and the filing date.
Want this handled start to finish?
Get a free quote →These are the primary sources behind this guide. Codes, fee schedules and procedures change — confirm the position for your filing date.
- Kitsap County Community Development
- Kitsap County Code chapter 12.10, permits
- Kitsap County Code chapter 14.04, technical building codes
- Labor and Industries contractor laws and rules
- Chapter 19.27 RCW, the State Building Code Act
Frequently asked questions
When do I need a site development activity permit?
At four thresholds. Grading moving 150 cubic yards or more of earth; grading producing a temporary or permanent slope steeper than three to one with a total height over 5 feet; any land clearing or grading on slopes steeper than 30 per cent or within the mandatory setback of a wetland, stream, lake or Puget Sound; and development requiring connection to a public storm drainage system.
How do I prove I have water?
In one of three ways. The county accepts a water right permit from the state ecology department, a letter from an approved water purveyor, or an accepted building site application from the county public health district as evidence of adequate water supply.
Which code applies here?
The Kitsap County Building and Fire Code, a single combined instrument regulating construction and site work within the unincorporated boundaries of the county. Washington has a mandatory statewide building code. The codes enumerated in chapter 19.27 RCW, the State Building Code Act, are adopted and amended by the State Building Code Council within the Department of Enterprise Services and are required in all cities and counties, so local government administers and enforces them rather than choosing whether to have them. The 2021 editions took effect on the fifteenth of March, 2024 after two delays, and the 2024 editions are dated to take effect on the third of May, 2027. The state adopts a new edition every three years and reviews the codes in two groups, but all of them take effect on the same date (the 2021 codes on 15 March 2024, the 2024 codes on 3 May 2027). A city or county may make the state code stricter but cannot opt out of it; local changes affecting houses or apartments need State Building Code Council approval, and the residential energy code cannot be changed locally.
Inspections are where schedules slip.
Get a free quote →When is the counter open?
Mornings only. The Department of Community Development counter runs from nine in the morning to noon, Monday to Friday, so anything requiring an in-person step has to be planned around that window.
Can the fees change without notice?
No. The public participation process for adopting fee policies and the building permit fee schedule must include a public hearing before the board of county commissioners for any proposed change.
Who registers my contractor?
The state. Most Washington contractors register rather than hold a licence; electrical and plumbing contractors must also hold an L&I contractor licence. Under chapter 18.27 RCW a contractor registers with the Department of Labor and Industries, files a continuous surety bond of $30,000 as a general contractor or $15,000 as a specialty contractor, and keeps liability insurance on file, renewing every two years. Registration is not a competence test and does not authorise trade work: electrical certification comes under chapter 19.28 RCW and plumbing under chapter 18.106 RCW. The electrical permit comes from the state, because the Electrical Program at the Department of Labor and Industries (L&I) issues electrical permits and carries out electrical inspections here under chapter 296-46B WAC.
Simplify Kitsap County permitting with Alliance Permitting
On a sloped Puget Sound parcel the site development permit usually governs the programme, not the building permit. We scope it first.
Trusted by leading builders, developers, and national contractors — 21+ years of filing in the jurisdictions we write about.
Contractors and builders choose Alliance for Kitsap County because the work is done by people who have stood at the counter:
- 21+ years of filing, so the edition and the electrical route are settled before submission
- We confirm which state code group governs each part of the work on your filing date
- State contractor registration, bond and insurance verified as active before filing
- Energy code and critical areas documentation prepared rather than discovered in review
- Two inspection queues sequenced so a cover-up never waits on the wrong inspector
Alliance Permitting is a permit documentation and submission company in Washington. We prepare your paperwork, file it correctly and coordinate with the permitting authority through issuance. We are not a contractor and we do not perform licensed plan review or inspections; that work stays with your licensed team and the jurisdiction.
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More Washington permitting guides
This guide is provided by Alliance Permitting for general information about Kitsap County permitting. Requirements, fees, and procedures change; confirm details with the permitting authority before relying on them.