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Municipal GuideWashingtonWhatcom County · Bellingham

Bellingham, Washington Building Permit Guide

Whether your re-roof needs a permit in Bellingham comes down to how much sheathing you expose — and over what period.

County: WhatcomCode route: State code, city amendmentsElectrical: City
Authority
Bellingham Permit CenterWhatcom County, city enforcement
Re-roof test
500 square feetOf sheathing or insulation exposed in six months
Sheathing replacement
Always permittedOf any size, and structural changes
Energy forms
Version-specificDifferent sets for residential and non-residential

Bellingham is the largest city in the north-west corner of the state, close to salmon habitat, wetlands and shoreline, and its permitting reflects that as much as it reflects the building code.

The Permit Center sits on the first floor of City Hall at 210 Lottie Street. Mechanical, plumbing, fire, water heater, re-roof and sign permits are applied for through the city’s eTRAKiT web portal; building and most other applications are submitted electronically by email to permits@cob.org (or on a flash drive at the counter). The building and construction codes in force are the international codes with the Washington state amendments and the administrative code.

This guide covers work inside the Bellingham city limits. Whatcom County permits unincorporated areas separately through its own building services division.

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The re-roof test is about sheathing, not shingles. Roof replacement is exempt in one- and two-family dwellings and townhouses where no changes are made to the building envelope other than adding or replacing insulation to an equivalent or better value — or where less than 500 square feet of roof sheathing or insulation is exposed within any six-month period. Permits are required for structural changes and for replacement of sheathing of any size, so a small structural repair is permitted where a large re-cover may not be.

What requires a building permit in Bellingham?

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 Bellingham is not whether a code applies, but which edition is in force and what the Bellingham Permit Center 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

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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 Bellingham Permit Center before work starts.

Local rules worth knowing

The energy code forms are version-specific and the city says which version to use: non-residential and multifamily submittals use the 2021 state energy code versions of the building envelope, lighting and mechanical forms, while single family and duplex submittals use the prescriptive worksheet for all climate zones together with a glazing schedule and a heating system sizing worksheet

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 Bellingham?

The Permit Center handles building, land use, public works, fire and special event permits for the city, with each permit type carrying its own submittal requirements published on the applications and forms page.

Bellingham permitting contact
DetailInformation
DepartmentCity of Bellingham Planning and Community Development, Permit Center
Address210 Lottie Street, First Floor, Bellingham, WA 98225
Phone(360) 778-8300
Walk-in hours8:30 a.m. to 3:30 p.m. Monday, Tuesday and Thursday; 9:30 a.m. to 3:30 p.m. Wednesday
Phone and email8:00 a.m. to 5:00 p.m., Monday to Friday
PortaleTRAKiT for trade, re-roof and sign permits, existing permits and fee payment; building applications by email to permits@cob.org
Exempt workPublished work exempt from permits handout
Energy code formsVersion-specific by project type

The city takes a clear line on whether a permit is needed: if the project does not appear on the published work exempt from permits handout, a permit is required. That inverts the usual question and makes the handout the first document to read rather than the last.

Submittal guidelines are published separately for single family and duplex, for multifamily, non-residential and mixed use, for tenant improvements, and for deconstruction and demolition. The demolition route includes a notification for the regional clean air agency, which is a separate body on its own timeline.

In 2025, building permits issued in Bellingham authorized 737 new privately owned housing units, 231 of them single-family homes, according to the U.S. Census Bureau Building Permits Survey.

Permit types

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Residential permits

Single family and duplex submittals carry their own guideline document referencing electronic submittal requirements, the building permit application, fixture count, accessory dwelling unit guidance, stormwater submittal requirements, a fee worksheet, valuation guidelines and impact fee deferral. Environmental screening applies near creeks, wetlands, steep slopes and fish and wildlife habitat.

How Washington contractor credentials work

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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 the Bellingham Permit Center and with the department, because registration lapses are common and an expired registration invalidates the credential the permit relies on.

Commercial permits

Multifamily, non-residential and mixed use submittals use their own guideline document, with the state energy code compliance forms for building envelope, lighting and mechanical, a building height calculation worksheet and a special inspection and testing agreement. Tenant improvements and covered cafes have their own published guidelines again.

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 Bellingham Permit Center 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

Bellingham permit costs and fees

Bellingham fees are set by permit type and project valuation, with a fee worksheet and valuation guidelines published alongside the submittal guidelines. Impact fee deferral is available and documented separately.

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 a separate city permit with its own fee. Ask the Bellingham Permit Center for the schedule in force on your filing date, and confirm the electrical route separately.

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Need a real number for a specific Bellingham 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 Bellingham building permit

1. Read the exempt work handout first

If the project does not appear on it, a permit is required.

2. Apply the sheathing test to re-roofs

Under 500 square feet of sheathing or insulation exposed in any six-month period, with no envelope change beyond insulation, is exempt; sheathing replacement of any size is not.

3. Pull the right submittal guideline

Separate guidelines exist for single family and duplex, multifamily and non-residential, tenant improvements, and demolition.

4. Use the correct energy code form version

Non-residential and multifamily use the state energy code versions; single family and duplex use the prescriptive worksheet, glazing schedule and heating system sizing worksheet.

5. Check the critical areas position

Environmental screening applies near creeks, wetlands, steep slopes and fish and wildlife habitat.

6. Notify the clean air agency on demolition

The demolition route includes a notification for the regional clean air agency, on its own timeline.

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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 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 Bellingham Permit Center before filing.

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

Inspections in Bellingham

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. The residential inspection sequence ends with energy code verification, so the energy documentation prepared at submittal is checked again at close-out.

The city issues its own electrical permits, so electrical inspections are requested from the city rather than from the state.

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.

Bellingham permit search and official resources

Permit records in Washington are split the same way the permits are. Where the Bellingham Permit Center is the authority for the City of Bellingham, it holds the building, plumbing and mechanical records — and the electrical record too, because the city issues its own electrical permits and carries out its own electrical inspections. If you are buying, refinancing or renovating, check both, because a clean local record does not mean the electrical work was ever permitted.

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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.

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

Frequently asked questions

Does my re-roof need a permit?

It depends on the sheathing. Roof replacement is exempt in one- and two-family dwellings and townhouses where no changes are made to the building envelope other than adding or replacing insulation of equivalent or better value, or where less than 500 square feet of roof sheathing or insulation is exposed within any six-month period. Permits are required for structural changes and for replacement of sheathing of any size.

How do I know whether I need a permit at all?

By elimination. The city publishes a work exempt from permits handout, and states that if you do not see your project on it, you will need to obtain a permit.

Which energy code forms do I use?

It depends on the project type. Non-residential and multifamily submittals use the state energy code versions of the building envelope, lighting and mechanical forms. Single family and duplex submittals use the prescriptive worksheet for all climate zones with a glazing schedule and a heating system sizing worksheet.

Which code edition applies?

The state edition as adopted by the city council. 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.

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What if my site is near a creek or wetland?

Environmental screening applies to projects near critical areas including creeks, wetlands, steep slopes and fish and wildlife habitat. These are not usually deal-breakers but they add a review step, so identify them before the design is fixed.

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 city, which runs its own electrical permits and inspections; elsewhere in Washington the Electrical Program at the Department of Labor and Industries (L&I) usually issues them.

Simplify Bellingham permitting with Alliance Permitting

Bellingham draws its thresholds precisely, which means they can be worked with precisely. We test the scope against the handout before anyone climbs a ladder.

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

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