Basement finish permits in Lakewood: fees, timeline & requirements (2026)
Everything you need to know about pulling a basement finish permit in Lakewood, Washington — when one is required, what it costs, how long review takes, what documents are required, and which inspections you can expect. Cited to Lakewood Planning and Public Works Department.
Free lookup, no account needed — the office that issues the permit at your address, and a layout of the room, cited to Lakewood's source.
When does a basement finish need a permit in Lakewood?
2021 IRC R310: every sleeping room below grade requires emergency escape and rescue opening (egress window). Min sill height 44in, min net clear opening 5.7 sq ft (5.0 grade-floor), min width 20in, height 24in. Ceiling height min 7ft (R305). Entire newly conditioned area must comply with WSEC R402.
How Lakewood adopted this rule
The threshold comes from the state code (WAC 51.51), which Lakewood adopts by reference in the provision quoted below.
“Pursuant to RCW 19.27.031, the following codes as amended by the Washington State Building Code Council herein adopted and further amended, shall be collectively known as the Lakewood Building Code: A. The 2021 Edition of the International Building Code (IBC), including Appendix Chapters E, G, and J, published by the International Code Council and amended by the Washington State Building Code Council in Chapter 51-50 WAC, is hereby adopted by reference and as subsequently amended by this chapter.”Source ↗verified 2026-04-29
Required submittals
- Floor plan w/ egress windows + ceiling heights
- Electrical layout
- Plumbing diagram
- Mechanical / HVAC plan
- WSEC compliance form (newly conditioned space)
- Smoke/CO alarm locations
Inspection sequence
- Rough-in (electrical/plumbing/mechanical)
- Framing
- Insulation
- Drywall
- Final
Contractor specialties needed
General contractor · Electrician (journey-level 01 or residential 02) · Plumber
Who can do this work in Lakewood?
Kolmo Construction is a licensed Washington general contractor — KOLMOL*753JS, active through April 10, 2027, bonded and insured — working throughout Lakewood and Pierce County. Kolmo prepares the drawings and submittals, files the basement finish permit with Lakewood Planning and Public Works Department, carries the project through review and inspections, and performs the construction. Call (206) 410-5100 for a Lakewood basement finish quote.
Notes & caveats
From Lakewood handout B10: "Remodel – Changing the interior space of an existing structure, either structural or nonstructural, but not creating any new floor area." Two tiers exist: Major (structural design plans + calculations, life safety, change of use, accessibility) and Minor (moving non-load-bearing walls, anchorage moves, glazing/insulation, heating equipment). Basement habitable conversion typically falls under Major remodel.
Basement finish permit fee estimate in Lakewood
Worked example for a $40,000 basement finish project (building permit). Your actual fee scales with project valuation.
| Building permit fee | $680 |
| Plan review | $442 |
| Administrative base fee | $90 |
| Technology surcharge (4%) | $48.48 |
| WA state surcharge | $6.50 |
| Estimated total | $1,266.98 |
Lakewood prices a basement finish's building permit on the value of the work, set by the Building Official: $30 up to $500, $90 for the first $2,000 plus $17.50 for each $1,000 more up to $25,000, and $492.50 for the first $25,000 plus $12.50 for each $1,000 more up to $50,000. Plan review is 65% of the building permit fee, one hour at the least, and the $6.50 state building code fee applies. Plumbing and mechanical work is priced on the City's unit tables, a $34 issuance fee plus, for example, $12 a plumbing fixture or $18 a fan, with plan review at 25% where plans are required. The electrical permit comes from Tacoma Power or L&I, at their fees. Every permit application carries the City's $90 administrative base fee, mechanical permits excepted, and a 4% technology fee (2026 Fee Schedule). Apply through Lakewood's Online Permit Center (app.oncamino.com/
How to apply yourself
- 1. Check who issues the permit. Run an address lookup for your basement finish in Lakewood — we'll confirm which office issues the permit at that address, and you can lay out the room.
- 2. Assemble submittals: the 6 documents under Required submittals above.
- 3. Submit through the city portal: Lakewood Planning and Public Works Department ↗
- 4. Track review. Respond to reviewer comments promptly.
- 5. Pay issuance fees (about $1,267 for a $40,000 project) and pick up the permit. Inspection card travels with the job.
Or have Kolmo do it
Kolmo prepares the drawings and submittals, files with Lakewood Planning and Public Works Department, handles reviewer comments, and builds the project.
Licensed WA general contractor KOLMOL*753JS · bonded & insured
Basement finish permits in Lakewood — FAQ
When does a basement finish need a permit in Lakewood?
2021 IRC R310: every sleeping room below grade requires emergency escape and rescue opening (egress window). Min sill height 44in, min net clear opening 5.7 sq ft (5.0 grade-floor), min width 20in, height 24in. Ceiling height min 7ft (R305). Entire newly conditioned area must comply with WSEC R402.
How much does a basement finish permit cost in Lakewood?
For a $40,000 basement finish project, the estimated Lakewood permit fee is about $1,266.98 (building fee $680 + plan review $442 + surcharges) from Lakewood's adopted fee schedule. Land use, fire and engineering review, intake, impact and utility fees, where they apply, are charged separately.