Seattle, WA · King County
Bathroom Remodel in Seattle, WA: Cost & Permits
What bathroom remodel actually costs in Seattle, whether you need a permit, which inspections apply, and how long the job takes.
Verified August 2026
Typical local cost
$23,600
$11,500 – $53,600
per bathroom
$11,500 – $53,650
Permit fee
$205 – $810
Modeled allowance
vs national
+28%
local labor & materials
Looking for pricing detail? The full bathroom remodel cost breakdown for Seattle covers cost by size and material, the local cost model and nearby markets.
Do you need a permit for bathroom remodel in Seattle, WA?
It depends
It depends on scope. Like-for-like cosmetic work in Seattle is often exempt, but a permit is required as soon as you change structure, plumbing, electrical or the building envelope.
SDCI review timelines, seismic detailing and energy-code requirements add meaningful cost and schedule to structural and envelope work.
Cost breakdown in Seattle
| Low endSimple scope, competitive bid | $11,500 |
|---|---|
| TypicalMost homeowners land here | $23,600 |
| High endComplex access, premium materials | $53,600 |
| per bathroom | $11,500 – $53,650 |
| Permit fee | Estimated allowance $205–$810Modeled from comparable fee schedules — not an official quoted fee. |
| Permit authority | City of Seattle building departmentModeled estimate |
| Timeline | 3-6 weeks |
Math: national baseline $9,000–$42,000 × Seattle cost index 1.26. Permit fees use a 1.35 local multiplier. Estimates, not quotes.
What drives your price here
- Tub-to-shower conversion versus like-for-like replacement
- Tile area and material
- Vanity, fixtures and glass enclosure
- Whether plumbing is relocated
- Waterproofing and subfloor repair
Permit process and inspections
| Permit required | It depends |
|---|---|
| Who pulls it | Contractor or owner-builder |
| Inspections | Rough plumbing, Shower pan water test, Final inspection |
| Documents | Permit application, Plumbing scope, Waterproofing details for shower pans |
| Apply | Seattle permit portal |
Frequently asked questions
Do I need a permit for a bathroom remodel?
Replacing a vanity, toilet or fixtures in the same location is usually permit-exempt. Rebuilding a shower pan, moving drain lines or adding circuits requires a plumbing or building permit and inspection.
Bathroom costs in nearby cities
Sources
Sources & verification
Last verified August 2026. Cost figures are modeled estimates based on national baselines adjusted for local labor and material pricing — they are not quotes. Permit rules change; confirm with the building department before starting work.
Page data quality: 100/100
- ✓ Verified permit status
- ✓ Official source linked
- ✓ Local cost range
- ✓ Inspection detail
- ✓ Unique local rule
- ✓ Local fee estimate
- ✓ Useful FAQ
- ✓ Relevant calculator
- ✓ Internal links