Kennewick, Washington Building Permit Guide

Kennewick is the largest of the three Tri-Cities and sits in Benton County on the south bank of the Columbia. Its permitting is conventional for a city of its size, with an Express Permit route for qualifying projects.

The Building Safety Division sits within the city’s Community & Economic Development department at City Hall, 210 West Sixth Avenue (509-585-4561, Monday to Friday 8:30 a.m. to 4:30 p.m.), and handles plan review, permit issuance and inspection, with applications through the city’s EnerGov self-service portal. Express Permits are available for qualifying projects for a convenience fee.

This guide covers work inside the Kennewick city limits. Pasco and Richland are separate cities with their own permitting, Benton County permits unincorporated areas separately, and West Richland is a further separate city again.

What requires a building permit in Kennewick?

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 Kennewick is not whether a code applies, but which edition is in force and what the Kennewick Building Safety Division has added to it.

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 the Kennewick Building Safety Division before work starts.

Local rules worth knowing

Contractors need two things rather than one. Alongside the state registration every Washington contractor must hold, a business licence is required for all contractors conducting business in Kennewick — so a registered contractor from a neighbouring Tri-City is not automatically clear to pull a permit here

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 Kennewick?

The Building Safety Division reviews plans, issues building and trade permits and carries out inspections for the city, with commercial projects reviewed by several departments at once and expedited review available where a project qualifies.

Kennewick sits in a three-city cluster where the jurisdictional question is easy to get wrong. Pasco lies across the river in Franklin County, Richland sits upstream in Benton County, and West Richland is a separate city again. All four run their own permit counters, their own fee schedules and their own local amendments to the state code.

Correction cycles behave the way they do across the state: each round of comments adds a further review period, and most commercial projects go through two or three before approval. Because the city offers expedited review rather than a statutory clock, the practical lever is submitting complete rather than submitting early.

In 2025, building permits issued in Kennewick authorized 530 new privately owned housing units, 364 of them single-family homes, according to the U.S. Census Bureau Building Permits Survey.

Permit types

Residential permits

Residential work follows the state residential provisions with the city’s amendments applied. Detached accessory structures below the local threshold may avoid a building permit but remain subject to zoning setbacks, and decks attached to the dwelling or elevated above the local height threshold are permitted.

How Washington contractor credentials work

Commercial permits

Commercial work is reviewed by multiple departments simultaneously, with plan review, fire department review and any third-party inspection charged separately from the permit itself. Confirm which state code group governs each part of the work at your filing date, since the parts move on separate dates under the state adoption cycle.

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 the Kennewick Building Safety Division 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

Kennewick permit costs and fees

Kennewick fees vary by project type and valuation under the published schedule, with plan review, fire review and third-party inspection charged in addition to the building permit fee.

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 the Kennewick Building Safety Division for the schedule in force on your filing date, and confirm the electrical route separately.

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

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 Kennewick building permit

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 the Kennewick Building Safety Division before filing.

The state code sets a 180-day default for permit validity, but Kennewick may change it, so confirm the expiry on phased or delayed work. Permit validity in Washington

Inspections in Kennewick

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. A completed inspection at least every 180 days is what keeps the permit alive, so on a slow-moving project a progress inspection is worth more than it appears.

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.

Kennewick permit search and official resources

Permit records in Washington are split the same way the permits are. Where the Kennewick Building Safety Division is the authority for the City of Kennewick, 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.

These are the primary sources behind this guide. Codes, fee schedules and procedures change — confirm the position for your filing date.

• Washington State Building Code Council
• SBCC state codes, regulations and guidelines
• Chapter 19.27 RCW, the State Building Code Act
• Labor and Industries contractor laws and rules
• RCW 19.27A.020, state energy code adoption

Frequently asked questions

How long does my Kennewick permit last?

The city’s Building FAQ states that an inspection must be completed at least once every 180 days to keep a permit active; permits with no activity for 180 days or more expire. An expired permit can be re-activated, subject to review by the Building Official.

Does my contractor need anything beyond state registration?

Yes. A business licence is required for all contractors conducting business in Kennewick, in addition to the state registration every Washington contractor must hold. 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.

Can I speed up review?

Kennewick offers Express Permits for qualifying projects — all single-family residential projects and most smaller commercial tenant improvements — with residential review completed in under 48 hours and commercial review within 72 hours, for a convenience fee. Beyond that, the most effective lever is submitting a complete package, since each correction cycle adds a further review period.

Which code edition applies?

The state edition as amended by the city. 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.

Is Kennewick the same jurisdiction as Pasco or Richland?

No. The Tri-Cities are three separate cities across two counties, each with its own permit counter, fee schedule and local amendments, and West Richland is a fourth separate city. Confirm which one holds the parcel before filing.

Who issues my electrical permit?

For most Washington projects the state does, through the Labor and Industries electrical programme, rather than the city building counter. Confirm the route for your scope before assuming a single counter handles everything.

Simplify Kennewick permitting with Alliance Permitting

A long permit window is only an advantage if someone is tracking it. In a three-city cluster the first job is confirming which counter you are at.

Trusted by leading builders, developers, and national contractors — 21+ years of filing in the jurisdictions we write about.

Contractors and builders choose Alliance for Kennewick 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.

This guide is provided by Alliance Permitting for general information about Kennewick permitting. Requirements, fees, and procedures change; confirm details with the permitting authority before relying on them.