Clark County sits opposite Portland across the Columbia and is the fifth most populous county in Washington. Its permit floor is low — re-roofing, siding and window replacement all need permits here.
The Building Safety programme reviews and inspects all construction requiring building permits in unincorporated Clark County and in the town of Yacolt, from small residential remodels to multi-storey commercial buildings, with applications through the county land management system.
This guide covers unincorporated Clark County and the town of Yacolt, which the county also permits. Vancouver, Battle Ground, Camas and the other incorporated cities permit separately, though the state issues electrical permits in several of them.
Re-roofing, siding and windows are all permitted work. The county states that re-roofing permits are required for all buildings in Clark County, and that a permit is required to replace any windows or siding on a structure. Generally a maximum of two layers of roofing may be applied to a residential structure, and a separate permit may be required where structural work such as replacing roof sheathing is involved.
What requires a building permit in Clark 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 Clark County is not whether a code applies, but which edition is in force and what Clark 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 Clark County Community Development before work starts.
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Get a free quote →Local rules worth knowing
Retaining walls carry an engineering requirement with no exceptions: a permit is required for walls over 4 feet measured from the bottom of the footing to the top, or for any wall supporting a load such as a slope, driveway or footings — and engineering by a Washington State registered engineer is required for all retaining walls requiring a permit, whatever the size or circumstances
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 Clark County?
Building Safety reviews and inspects all construction projects requiring building permits in the unincorporated areas of Clark County and the town of Yacolt, with development engineering, fire marshal and code enforcement functions running alongside within Community Development.
| Detail | Information |
|---|---|
| Department | Clark County Community Development, Building Safety |
| Address | Public Service Center, 1300 Franklin Street, Third Floor, Vancouver, WA 98660 |
| Community Development | (564) 397-2375 |
| Building Safety | (564) 397-4912 |
| Permit Center | Monday to Friday, 8:00 a.m. to 2:00 p.m., in-person by appointment only (permitservicesappt@clark.wa.gov); (564) 397-4078 |
| Also permits | The town of Yacolt as well as unincorporated county |
| Electrical | State Labor and Industries (L&I), covering the county and every city except Vancouver |
| Processing times | Published as a rolling 12-month average by permit type |
The counter is not a walk-in service. All in-person services at the Permit Center require an appointment, scheduled by email, with staff otherwise available by phone and email and the county encouraging online services. It asks for the permit, case or licence number, the address and the parcel number on any enquiry, which speeds a response considerably.
The county publishes something few jurisdictions do: average permit processing times by permit type on a rolling 12-month basis. That is a real planning input rather than a target, because it reflects what actually happened rather than what the department intends, and it can be checked before committing to a programme date.
Permit types
Residential permits
Residential permit categories are unusually granular, with separate permit types for demolition, fences and retaining walls, mobile home placement including temporary hardship permits and six-month staging, and miscellaneous matters such as address assignment and agricultural structure exemptions. Manufactured and mobile home demolition goes to the state rather than the county.
Not sure this scope needs a permit?
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 Clark 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 work runs through electronic plan review with its own file requirements. Because the state issues electrical permits in unincorporated Clark County and in every Clark County city except Vancouver, the electrical scope on a commercial project is invoiced and inspected outside the county process entirely.
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 Clark 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
Clark County permit costs and fees
Clark County fees are based on project valuation on a similar structure to the incorporated areas nearby, with the published rolling processing times available alongside to plan the calendar as well as the budget.
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 Clark 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 Clark 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 Clark County building permit
Re-roofing on all buildings, and any siding or window replacement, all require permits here.
A Washington State registered engineer is required for all retaining walls that need a permit.
In-person services at the Permit Center are by appointment only, arranged by email.
Averages by permit type are published on a rolling 12-month basis.
The state issues electrical permits in unincorporated Clark County and every Clark County city except Vancouver.
Separate types cover demolition, fences and retaining walls, mobile homes and miscellaneous approvals.
Rather not deal with the Clark 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 Clark County Community Development before filing.
The state code sets a 180-day default for permit validity, but Clark County may change it, so confirm the expiry on phased or delayed work. Permit validity in Washington
Inspections in Clark 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. Because the county permits the town of Yacolt as well as unincorporated areas, the same inspection service covers both, which is worth knowing on a project near that boundary.
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.
Clark County permit search and official resources
Permit records in Washington are split the same way the permits are. Where Clark County Community Development is the authority for unincorporated Clark 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.
Want this handled start to finish?
Get a free quote →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.
These are the primary sources behind this guide. Codes, fee schedules and procedures change — confirm the position for your filing date.
- Clark County building
- Clark County residential permits
- Clark County Permit Center
- Labor and Industries contractor laws and rules
- SBCC state codes, regulations and guidelines
Frequently asked questions
Do I need a permit to re-roof?
Yes. The county states that re-roofing permits are required for all buildings in Clark County, with no size threshold, and that a separate permit may be required where structural work such as replacing roof sheathing is necessary. Generally a maximum of two layers of roofing may be applied to a residential structure.
What about siding and windows?
Both are permitted work. A permit is required to replace any windows or siding on a structure.
Does my retaining wall need an engineer?
If it needs a permit, yes. A permit is required for retaining walls over 4 feet measured from the bottom of the footing to the top, or for any wall supporting a load such as a slope, driveway or footings, and engineering by a Washington State registered engineer is required for all retaining walls requiring a permit.
Can I just come to the counter?
No. All in-person services at the Permit Center require an appointment, arranged by email, with staff otherwise available by phone and email.
Inspections are where schedules slip.
Get a free quote →Which code edition applies?
The state edition as amended by 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.
Who issues my electrical permit?
The state, in unincorporated Clark County and in every Clark County city except Vancouver, which runs its own electrical programme. 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 Clark County permitting with Alliance Permitting
A county that permits window replacement is a county where the exemption assumptions from next door will cost you. We work from its list, not the neighbour's.
Trusted by leading builders, developers, and national contractors — 21+ years of filing in the jurisdictions we write about.
Contractors and builders choose Alliance for Clark 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 Clark County permitting. Requirements, fees, and procedures change; confirm details with the permitting authority before relying on them.