Bathroom remodel permits in Issaquah: fees, timeline & requirements (2026)
Everything you need to know about pulling a bathroom remodel permit in Issaquah, Washington — when one is required, what it costs, how long review takes, what documents are required, and which inspections you can expect. Cited to Community Planning & Development.
Free lookup, no account needed — the office that issues the permit at your address, and a layout of the room, cited to Issaquah's source.
When does a bathroom remodel need a permit in Issaquah?
Tub and shower replacement requires a permit; sink/toilet replacement without plumbing-line modification is exempt. Processed under the Single-Family Interior Remodel permit.
In the source's own words
“Bathroom and kitchen fixture replacements without plumbing line modifications such as sinks and toilets (Note: Tub and shower replacement does require a permit.)”Source ↗verified 2026-05-29
Required submittals
- Floor plan with fixture locations
- Plumbing diagram
- Electrical layout
- Waterproofing detail at tub/shower
Inspection sequence
- Rough-in (electrical/plumbing/mechanical)
- Shower-pan/waterproofing
- Insulation if walls opened
- Drywall
- Final
Contractor specialties needed
General contractor · Plumber · Mechanical contractor
Who can do this work in Issaquah?
Kolmo Construction is a licensed Washington general contractor — KOLMOL*753JS, active through April 10, 2027, bonded and insured — working throughout Issaquah and King County. Kolmo prepares the drawings and submittals, files the bathroom remodel permit with Community Planning & Development, carries the project through review and inspections, and performs the construction. Call (206) 410-5100 for an Issaquah bathroom remodel quote.
Notes & caveats
2021 IRC R105.1. GFCI/AFCI required at bathroom outlets per NEC 210.8 + WA amendments. Exhaust fan must vent to exterior (IRC R303). Tile shower waterproofing inspection required (PMG-001 / TCNA-aligned).
Bathroom remodel permit fee estimate in Issaquah
Worked example for a $22,000 bathroom remodel project (building permit). Your actual fee scales with project valuation.
| Building permit fee | $488.55 |
| Plan review | $317.56 |
| Technology surcharge | $48.37 |
| WA state surcharge | $6.50 |
| Estimated total | $860.98 |
Issaquah prices a bathroom remodel's building permit on the value of the work: $32.39 up to $500, $32.39 plus $4.05 for each $100 more up to $2,000, $96.55 for the first $2,000 plus $19.60 for each $1,000 more up to $25,000, and $544.06 for the first $25,000 plus $14.23 for each $1,000 more up to $50,000. Plan review adds 65% of that fee, a 6% technology surcharge is added to both, and the state building code fee is $6.50. Plumbing is $31.44 for each new or moved fixture and mechanical $62.88 for each new appliance or duct system, each $62.88 at the least and $422.04 at the most, with a separate technology fee. Electrical permits come from L&I, not the City, at L&I's fees. Apply via mybuildingpermit.com. Computed from Issaquah's adopted fee schedule · source ↗. Land use, fire and engineering review, intake, impact and utility fees, where they apply, are charged separately.
How to apply yourself
- 1. Check who issues the permit. Run an address lookup for your bathroom remodel in Issaquah — we'll confirm which office issues the permit at that address, and you can lay out the room.
- 2. Assemble submittals: the 4 documents under Required submittals above.
- 3. Submit through the city portal: Community Planning & Development ↗
- 4. Track review. Respond to reviewer comments promptly.
- 5. Pay issuance fees (about $861 for a $22,000 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 Community Planning & Development, handles reviewer comments, and builds the project.
Licensed WA general contractor KOLMOL*753JS · bonded & insured
Bathroom remodel permits in Issaquah — FAQ
When does a bathroom remodel need a permit in Issaquah?
Tub and shower replacement requires a permit; sink/toilet replacement without plumbing-line modification is exempt. Processed under the Single-Family Interior Remodel permit.
How much does a bathroom remodel permit cost in Issaquah?
For a $22,000 bathroom remodel project, the estimated Issaquah permit fee is about $860.98 (building fee $488.55 + plan review $317.56 + surcharges) from Issaquah's adopted fee schedule. Land use, fire and engineering review, intake, impact and utility fees, where they apply, are charged separately.