Oak Harbor, Washington Building Permit Guide

The City of Oak Harbor’s Building Division, part of the Community Development Department (formerly Development Services), reviews, issues and inspects building, mechanical, plumbing, sign and demolition permits inside the city, and applications go in through the City’s online permitting platform. Electrical permits are issued and inspected by the state Department of Labor and Industries (L&I), whose nearest office is at 525 E College Way in Mount Vernon. Plan review costs 65% of the building permit fee and is paid when you apply, and permits stay valid for two years.

The division is led by the Building Official, with a plans examiner and a building inspector, at City Hall, 865 SE Barrington Drive; the City’s main number is 360-279-4500. Stacie Pratschner is the Community Development Director. Oak Harbor had 24,083 residents in the Census estimate for 2025; Island County permits the unincorporated land around the city.

What requires a building permit in Oak Harbor?

Oak Harbor Municipal Code (OHMC) Title 17 applies the most recent state editions of each code. Chapter 17.05 rewrites the building code’s exempt list for commercial and other buildings under that code, while chapter 17.06 leaves the residential code’s exempt list as the state adopted it, so homes follow the state list.

The adopted fee schedule charges a permit fee for fences over 6 feet (an hourly plan review plus $25), which is stricter than the 7-foot exemption in OHMC 17.05; ask the Building Division before building a fence between 6 and 7 feet.

What the city decides and what the state holds

Because OHMC 17.05.015 and 17.06.020 adopt the most recent state editions, Oak Harbor follows each state code update automatically. Its local choices include residential code appendices for patio covers, existing buildings and sound transmission, the 120 sq ft exempt limit under the building code, a two-year permit life, a rule that plans for buildings of 4,000 sq ft or more be stamped by a Washington architect or engineer, and a list of conditions that must be cleared before any permit issues. The residential design table sets a 17 psf ground snow load, 85 mph wind speed, seismic design category D1 and a 12-inch frost depth.

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 program or Tacoma Power serves the site. Building codes in Washington

Oak Harbor building department: who handles permitting

Community Development has two divisions: Building, which administers the building codes through permits and inspections and handles property maintenance and zoning compliance, and Planning, which handles current and long-range planning, environmental review, design review and land use questions. The City Engineer issues right-of-way and grading permits, and appeals of code decisions go to the hearing examiner. Building Division staff also serve on the City’s emergency operations team, checking whether buildings are safe to use after a disaster.

Permit types

Residential permits

Houses, additions, decks, covered patios and porches, re-roofs and solariums are all priced by valuation, using the ICC building valuation data the City adopts by reference. Flat fees cover the smaller items: $35 for a freestanding wood, gas or pellet stove, $25 for a fireplace insert, $100 for a masonry fireplace, $90 plus the state surcharge for a solar energy system, $120 to set a single-wide mobile home and $150 for a double or triple-wide, and $500 for a modular home. Residential demolition is $50 plus the $6.50 state surcharge. Moving a building into or within the city costs $50 before the move plus a building permit fee based on the valuation of a new building and the cost of the moved one, and a satellite dish 48 inches or wider or a flagpole is $25. OHMC 17.06 rewrites the residential code’s emergency escape opening rule: every sleeping room and basement needs one (basements used only for mechanical equipment and no larger than 200 sq ft are excepted), and a replaced escape window must meet new-construction opening sizes unless only the glass is replaced.

Building or remodeling a home here? Alliance handles residential permit expediting, so the crew isn't waiting on the counter.

Commercial permits

Commercial projects usually combine several applications: the General Development Application, the Critical Areas Identification Form, site plan review, SEPA and, by project, design review, transportation concurrency, stormwater reports and land clearing. Plans for buildings of 4,000 sq ft or more must be stamped by a Washington-licensed architect or engineer. A commercial demolition is $50 plus a $25 state surcharge, a sign permit adds a $25 state surcharge to its fees, and an occupancy permit is $32. Fire code chapters 8.03, 8.05 and 8.12 of the code add the City’s fire protection and fire alarm requirements, and Schedule C prices fire system work as permit, plan review and inspection fees together: a fire alarm system of 1 to 10 devices is $225, a commercial NFPA 13 or 13R sprinkler system of up to 25 heads $350, and a range hood suppression system $300.

Site plan review follows the City’s review processes. For a Review Process 1 project, a $510 pre-application fee replaces the application fee (which is $510 if you skip pre-application); for Review Processes 2 and 4, the $510 pre-application fee is credited against a site plan fee of 1% of the proposed development value. The site plan checklist says an application missing any listed item will not be accepted.

For tenant improvements and new commercial builds, Alliance handles commercial permit applications through issuance. More on this: commercial building permits explained.

What comes before the building permit

OHMC 17.05.060 lists what the Building Official must confirm before issuing any permit: conditions from land use approvals and site civil review, payment of transportation, school, park or other impact fees, design review where Title 19 requires it, SEPA compliance, flood management rules in Titles 12 and 20, and critical areas protection in Title 20. Shoreline work runs from a $100 exempt review letter to a $510 administrative substantial development permit or $1,990 for projects valued up to $100,000; a floodplain development permit is $190. A residential NFPA 13D sprinkler system, where one is needed, costs $350 for up to 50 heads under the fire schedule. On a septic lot, Island County Public Health handles the septic approval.

Oak Harbor permit costs and fees

Building fees are in Schedule A of the Master Fee Schedule, last amended for Development Services by Resolution 25-24, adopted November 5, 2025; the June 16, 2026 amendment (Resolution 26-05) changed only park and marina fees. Valuation includes all materials and labor, including electrical, mechanical and plumbing systems, and the Building Official sets the final figure.

Worked example. A house valued at $400,000 falls in the $100,001 to $500,000 band: $993.75 plus 300 × $5.60 ($1,680) gives a building permit fee of $2,673.75. Plan review at 65% adds $1,737.94 and the state fee $6.50, for $4,418.19. Impact fees in Schedule A add $1,673 for parks on a single-family lot and $907 per residential unit for transportation, before mechanical, plumbing and utility charges; an application to defer impact fees costs $55.

Trade permits and who may pull them

Mechanical and plumbing permits are issued by the Building Division under OHMC chapters 17.10 and 17.12. Electrical work is different: OHMC 17.05.060 states that the National Electrical Code, as set out in the state electrical rules, is regulated and enforced by L&I’s Electrical Division, and Oak Harbor is not on L&I’s list of cities with their own electrical programs. Anyone hired for the work registers with the state; the rules are gathered in our Washington guide’s licensing notes.

How to apply for an Oak Harbor building permit

Review, corrections and what causes delay

Revisions to approved plans are charged at $60 an hour, and if the Building Official thinks the stated valuation is too low the permit is denied unless detailed estimates support it. Under OHMC 17.05.060, every permit expires two years after it is issued unless a construction schedule approved before issuance sets a later date. It can be renewed once, for one more year, for 50% of the original permit fees, if you apply before it expires, the plans have not changed and no new building code has been adopted; impact fees and utility connection charges are not charged again. Refunds of up to 80% of an unused permit or plan review fee need a written request within 180 days of payment.

Inspections in Oak Harbor

Request inspections on the online platform or on the 24-hour inspection line, 360-279-4569. Requests received before 4 p.m. are generally scheduled for the next day, and later ones two days out; inspectors work about 9 a.m. to 3:30 p.m. on weekdays and cannot promise set times. The work must be ready when you call, and the permit and approved plans must be on site. The permit holder must make sure every area is inspected before it is covered, and occupying a building before the certificate of occupancy is issued is a civil violation under OHMC 17.05.060.

Oak Harbor permit search and official resources

Applications and inspection requests run through the City’s online permitting platform; older records come through a public records request to the City. Oak Harbor is community 530068 in FEMA’s participating list, with a March 7, 2017 flood map, and the City’s floodplain development permit costs $190.

• Oak Harbor Building Division
• Building inspections and the inspection line
• Current codes and design criteria
• Submittal requirements and application forms
• Master Fee Schedule (PDF)
• Oak Harbor online permitting platform
• OHMC chapter 17.05, International Building Code
• OHMC chapter 17.06, International Residential Code

Oak Harbor building permit FAQ

Who issues building permits in Oak Harbor?

The City’s Building Division in Community Development, City Hall, 865 SE Barrington Drive (360-279-4500); Island County permits outside the city.

Who issues electrical permits?

L&I; the City code leaves electrical regulation to L&I’s Electrical Division.

How long is a permit valid?

Two years from issuance, with one renewal for a further year at 50% of the original fees if you apply before it expires.

How much is a permit for a $400,000 house?

$2,673.75 for the building permit, $1,737.94 for plan review and $6.50 state fee, plus park and transportation impact fees of $2,580.

Do I need a permit for a fence?

The code exempts fences up to 7 feet, but the fee schedule charges a permit fee for fences over 6 feet, so check with the Building Division.

Do I need a permit for a wood stove or fireplace insert?

Yes. The fee schedule charges $35 for a freestanding wood, gas, pellet or propane stove, $25 for an insert and $100 for a masonry fireplace.

Do my plans need an architect or engineer?

For buildings of 4,000 sq ft or more, OHMC 17.05.060 requires plans designed and stamped by a Washington-licensed architect or engineer; the Building Official can also require a design professional where special conditions exist.

How fast can I get an inspection?

Call or request online by 4 p.m. and the inspection is generally the next working day.

Simplify Oak Harbor permitting with Alliance Permitting

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 Oak Harbor permitting. Requirements, fees, and procedures change; confirm details with the permitting authority before relying on them.