Cost guides › Attic conversion › Washington › Seattle, WA
Seattle-Tacoma-Bellevue, WA · 4.1 million people
Attic conversion cost in Seattle, WA
Most homeowners pay $31,800 – $52,900 (mid-range, typical $40,700, before sales tax), 16% above the national average and 3% above the Washington average.
Most homeowners pay
Estimate your project
Compare materials
mid-range, typicalPrice levels in Seattle, WA
| Typical | Labour | Materials | |
|---|---|---|---|
| Basic | $36,400 $28,400 – $47,400 | $22,249 | $14,191 |
| Mid-range | $40,700 $31,800 – $52,900 | $24,977 | $15,741 |
| Premium | $73,600 $57,400 – $95,700 | $44,297 | $29,341 |
Why prices in Seattle, WA are different
Labor is about 61% of a mid-range attic conversion job, around 253 hours of trade work. Tradespeople in the Seattle, WA area cost about 29% more than the national average (BLS Occupational Employment and Wage Statistics for the metro area), while materials cost much the same nationwide. So the job comes out 16% above the national figure and 3% above the Washington average.
Seattle, WA ranks 5 of the 110 largest US metro areas for this job, from most to least expensive.
Other metro areas in Washington
| Seattle, WA | $40,700 |
| Attic conversion cost in Spokane, WA | $37,000 |
| Washington average | $39,700 |
Metros with similar prices
Other home projects in Seattle, WA
Frequently asked questions
How much does attic conversion cost in Seattle, WA?
A mid-range job typically costs $40,700 before sales tax, with most homeowners paying $31,800 – $52,900. Basic is about $36,400 and premium about $73,600.
Is attic conversion more expensive in Seattle, WA than elsewhere in Washington?
Seattle, WA: 3% above the Washington average of $39,700. Labor is about 61% of a mid-range attic conversion job, around 253 hours of trade work. Tradespeople in the Seattle, WA area cost about 29% more than the national average (BLS Occupational Employment and Wage Statistics for the metro area), while materials cost much the same nationwide. So the job comes out 16% above the national figure and 3% above the Washington average.
How does Seattle, WA compare with other large metros?
Among the 110 US metro areas with 500,000+ people, Seattle, WA ranks 5 for this job, from most to least expensive. The national figure is $35,000.
How much of the price is labor in Seattle, WA?
About 61% at the mid-range level, around 253 hours of work at local rates. The rest is materials, equipment and disposal, which vary much less between cities.
Population: US Census Bureau, metropolitan area estimates for 2024.
← Attic conversion cost: turning an attic into a bedroom: national prices and full guide