Monroe, Washington Building Permit Guide

In Monroe, the Building Division of the Community Development Department issues building, plumbing and mechanical permits, while fire system permits are inspected by Snohomish Regional Fire & Rescue and any wiring needs a state electrical permit from the Department of Labor and Industries (L&I), which has an office in south Everett. Since March 23, 2026, building, engineering, land use and fire applications have gone in through the City’s LAMA online portal. Under the fee schedule in force from July 1, 2026, plan review costs 75% of the permit fee and is paid when you apply.

The Permit Center is at City Hall, 806 West Main Street. It is open Monday, Tuesday, Thursday and Friday from 8 a.m. to 5 p.m., closed for lunch from noon to 1 p.m., and on Wednesdays only from 8 a.m. to noon. Call 360-863-4501 for questions or to book a submittal appointment. Monroe’s 2025 Census estimate was 20,025 residents.

Monroe permits cover land inside the city limits; unincorporated land around the city is permitted by Snohomish County.

What requires a building permit in Monroe?

Monroe’s building code, chapter 15.04 of the Monroe Municipal Code (MMC), rewrites part of the building code’s exemption list in section 15.04.070. Work that the codes cover and that is not on an exemption list needs a permit, and an exemption never allows work that breaks the code or other city rules.

Exempt from a building permit is not the same as free of review. Fences, grading, rockeries, retaining walls, driveways and work in the street are Public Works and Engineering permit types in the portal; a right-of-way permit for a fence costs nothing, while a residential driveway is $382. Land clearing ($217) and tree removal review ($175) are land use permits.

What the city decides and what the state holds

Ordinance 005/2023 adopted the 2021 International Building, Existing Building, Residential, Mechanical, Fuel Gas, Fire, Property Maintenance and Swimming Pool and Spa codes, the Uniform Plumbing Code and the energy code, all with the State Building Code Council’s amendments, for applications complete on or after March 15, 2024. Monroe’s own changes include the exemption list above, a 2-year permit life, 80% refunds, hearing examiner appeals, and a rule that electrical permits must be finaled before the building final. The City is not yet reviewing permits under the 2021 Wildland-Urban Interface Code while the state settles its final version. Design values for plans are seismic category D1/D2, 110 mph wind, exposure B, an 18-inch frost depth and a 25 psf snow load.

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

Monroe building department: who handles permitting

The Building Division does plan review, inspections, code information and code enforcement for buildings, structures, gas, mechanical and plumbing systems. Planning handles land use and the shoreline, Public Works handles engineering and right-of-way permits, and the Snohomish Regional Fire & Rescue fire marshal’s office reviews and inspects fire permits. The Community Development Director, Lance Bailey, heads the department.

Permit types

Residential permits

The City publishes residential submittal checklists for a new house, addition or remodel, a deck, a garage, a garage conversion to living space, plumbing and mechanical work, and window replacement, plus a sample site plan. For a house or addition the checklist asks for a site plan at 1 inch to 50 feet or larger, elevations and floor and foundation plans, the registered design professional form, structural calculations where needed, a temporary erosion and sediment control plan, the energy code checklist, a copy of the contractor’s L&I registration, the building height worksheet, Snohomish Health District approval where a septic system is involved, and a utility service agreement for a new or changed water or sewer service.

Builders who repeat a house design can register it in the Residential Basic Plan Program; each later use of a basic plan pays a $264 plan review fee instead of a full review, plus the permit fee. An accessory dwelling unit needs a $532 land use review as well as its building permit.

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

Commercial permits

Commercial permit types in LAMA include new buildings, tenant improvements, demolition, high racking, re-roofs, signs and playgrounds, each with its own plumbing and mechanical permits. Commercial plumbing and mechanical permits are priced by valuation, with plan review of 65% for plumbing and 25% for mechanical charged at issuance. A soils report is required for commercial projects. Fire permits that need Building Division review pay a building plan review fee of 75% of the fire permit fee on top of Snohomish Regional Fire & Rescue’s own fee.

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

Monroe sits on the Skykomish River, and land along the river, Lake Tye and local streams floods most often between October and April. Building in a special flood hazard area needs a floodplain development permit ($251 with a structure, $63 without), and the City keeps elevation certificates and floodplain mapping online. Shoreline substantial development permits cost $4,327 plus a $2,500 hearing examiner deposit, and SEPA review, where required, is $4,382.

Lots on septic need the Snohomish Health District’s written approval: MMC 15.04.180 makes a private sewage disposal permit a prerequisite for issuing the building permit. Where the City supplies water and sewer, a new connection pays system development charges of $4,111 for water and $7,456 for sewer per equivalent unit. A utility availability letter costs $104, and an additional pre-application meeting $172.

Monroe permit costs and fees

Building fees are set in Schedule A of the Master Fee Schedule. The current version comes from Resolution 2026-013, adopted by the City Council on June 23, 2026, which amended several land use, building, plumbing and mechanical fees from July 1, 2026. Valuation covers all the work, including electrical, gas, mechanical and plumbing equipment, and the Building Official sets the final figure from the ICC valuation table. Plan review is paid at submittal and the permit fee at issuance.

Only one step in the table does not chain: the $25,001 band starts at $532, not at the $509 the band below reaches; every other band picks up where the last one ended. Worked example. For a $60,000 addition in Monroe, the permit fee is $947: the $857 base for the first $50,000, then $9 for each of the ten added thousands. The 75% plan review paid at submittal is $710.25, bringing the total to $1,657.25; the state surcharge, any technology fee and the plumbing, mechanical and L&I electrical permits come on top.

New homes pay impact fees at issuance. Park fees run by bedroom count, from $3,346 for a studio to $10,393 for four or more bedrooms (an ADU pays half), and the transportation fee is $7,649 per single-family home under Ordinance 006/2026. School fees depend on the district: the Monroe School District’s rate is $0, while homes in the Snohomish School District part of the city pay $5,361.

Trade permits and who may pull them

Monroe’s Building page sends electrical permits and inspections to L&I, and the city is not on L&I’s list of local electrical programs. Plumbing and mechanical permits are City permits priced per fixture and appliance under Schedule B. The City’s own building code adds a sequence rule: the L&I electrical permit must be finaled before you ask for the building final.

Monroe’s residential checklist asks for a copy of the contractor’s L&I contractor registration with the application, so a contractor-built project files that copy alongside the plans.

How to apply for a Monroe building permit

Review, corrections and what causes delay

Monroe’s FAQ ties turnaround to the quality of the submittal and the permit type, and a permit is issued once code compliance is confirmed and all fees are paid. The FAQ also counts an application as complete only when every required document is submitted, completely filled out and signed. In developments with a single access road and three or more attached homes, no certificate of occupancy or temporary certificate is issued for any attached unit until every unit it is joined to is complete.

Inspections in Monroe

Building inspections are requested in the LAMA portal and carried out Monday to Friday during business hours, but not on City holidays. A request received online by 4 p.m. will usually be inspected the next business day. Repeat inspections carry escalating penalties of $150, $300 and $450 an hour, and inspections after hours cost $118 an hour with a 1-hour minimum.

A building, plumbing or mechanical permit expires 2 years after it is issued. The Building Official may grant one written 30-day extension when only the final inspection remains and everything else has passed.

Monroe permit search and official resources

Applicants follow their own permits and inspections in LAMA, which also keeps a digital record of past permits. The City posts monthly issued-permit reports on its Permitting pages, and older records can be requested through the City Clerk’s public records process. Monroe participates in the National Flood Insurance Program (FEMA’s current effective map is dated June 19, 2020) and in FEMA’s Community Rating System, which the City says gives property owners a 25% discount on flood insurance.

• Monroe Permitting: hours, contacts, online filing
• Online permits: the LAMA portal and permit types
• LAMA permit portal
• Building Division and inspection requests
• Residential submittal checklists
• Residential addition and remodel checklist (PDF)
• Fees page: Master Fee Schedule resolutions
• Schedule A, general development fees, effective July 1, 2026 (PDF)
• Schedule B, plumbing and mechanical fees, effective July 1, 2026 (PDF)
• MMC chapter 15.04: Monroe building code
• Flood Protection and Management Program
• Requesting public records
• L&I list of cities with their own electrical permits

Monroe building permit FAQ

Who issues building permits in Monroe?

The Building Division at the Permit Center, City Hall, 806 West Main Street (360-863-4501). L&I handles the electrical permit, which must be finaled before the building final.

Can I still apply on paper in Monroe?

Applications have been filed through the LAMA portal since March 23, 2026. Staff at the Permit Center help people use the portal during business hours.

How much is a building permit in Monroe?

For a $60,000 addition from July 1, 2026, the permit fee is $947 and plan review $710.25, plus the state surcharge and any technology fee.

Do I need a permit for a shed?

Not for a one-story detached shed of 200 sq ft or less that is portable, has no poured concrete foundation and meets zoning setbacks.

Do I need a permit to replace a water heater or furnace?

Yes. Water heaters, furnaces, heat pumps, air conditioners and re-roofs are quick permits issued through the portal.

How long does a Monroe permit last?

Two years from issuance, with one 30-day written extension possible when only the final inspection is left.

When can I get an inspection?

Requests made online by 4 p.m. are usually inspected the next business day, Monday to Friday.

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