Cost to Build a House in Seattle, Washington (2026)
A 2,000 sq ft mid-range home in Seattle costs approximately $452,518–$575,932, or $271/sq ft. Seattle runs 22% above the Washington average.
Estimated Build Cost in Washington
Range: $370,916 – $472,076
Configure Your Build
Upgraded finishes, quality materials
Mid-Range Finish Includes
- • Quartz countertops
- • Hardwood floors
- • Semi-custom cabinets
- • Upgraded fixtures
Line-Item Estimate
* Excludes land cost, which varies widely by location. Add $20,000–$200,000+ depending on your area.
Building in Seattle: What to Know
- →Among most expensive US markets
- →Tech wages inflate labor
- →Seismic/Cascadia requirements
- →Strict energy code
Cost by Size in Seattle
About Construction Costs in Seattle
Building a new home in Seattle, Washington in 2026 costs approximately $271 per square foot for mid-range construction — putting a 2,000 sq ft home at roughly $514,225 for the structure alone (excluding land). Seattle is 22% more expensive than the Washington state average, driven by local labor market conditions and construction demand.
Washington as a whole has a cost multiplier of 1.18× the national average. Combined with Seattle's local adjustment of 1.22×, the effective multiplier for this city is 1.44× the national baseline.
These estimates cover construction costs only and do not include land, which varies significantly in Seattle. Always obtain bids from at least 2–3 licensed general contractors in the area for an accurate project budget.