New Construction Company in Seattle, WA
A new construction company in Seattle builds homes from the ground up — from site prep and foundation to framing, drywall, flooring, and final finishes. In Seattle, new home construction typically costs $300 to $600+ per square foot and requires multiple permits through SDCI.
What Is New Home Construction in Seattle?
New construction means building a brand-new home on a vacant lot or cleared site.
This is different from renovation. You are not updating an existing structure — you are building from scratch.
Common reasons Seattle homeowners choose new construction:
- Existing home is beyond economic repair
- Lot is purchased and needs a new home built
- Client wants custom design and modern systems
- Investment or rental property development
According to the National Association of Home Builders (NAHB), the average new home in the Seattle metro area exceeds 2,300 square feet and involves over 22 subcontractor trades.
Our New Construction Process in Seattle
- Pre-construction planning — design, engineering, and budgeting
- Permit acquisition through SDCI
- Site preparation — demolition, grading, excavation
- Foundation and concrete work
- Framing — walls, roof structure, sheathing
- Mechanical rough-in — plumbing, electrical, HVAC
- Insulation and drywall
- Interior finishes — flooring, painting, cabinetry
- Exterior finishes — siding, roofing, decking, concrete
- Final inspections and certificate of occupancy
New Construction Costs in Seattle — What to Expect
| Cost Factor | Typical Range (Seattle) |
|---|---|
|
Cost per square foot |
$300 – $600+ |
|
1,500 sq ft new home |
$450,000 – $900,000+ |
|
2,500 sq ft new home |
$750,000 – $1,500,000+ |
|
Permit fees (SDCI) |
$10,000 – $30,000+ depending on scope |
|
Timeline (average) |
6 – 14 months from permit to occupancy |
Source: NAHB Cost to Build Report 2024 | Zillow Seattle Market Data.
New Home Additions and ADUs in Seattle
Not ready for full new construction? We also build:
- First and second story additions
- Accessory Dwelling Units (ADUs) — attached or detached
- Garage conversions and basement finishing
- New room additions and sunroom expansions
Seattle’s updated ADU ordinance (effective 2019) allows up to two ADUs per single-family lot. This is one of the most effective ways to add value and rental income to your property.
FAQs — New Construction Seattle
From permit approval to move-in, most new homes in Seattle take 8 to 14 months. Custom homes with complex designs may take longer. Permit timelines from SDCI currently average 3 to 6 months.
Yes. Seattle requires engineered plans for new residential construction. We work with licensed architects and structural engineers and can coordinate this on your behalf.
You will need a Master Use Permit (MUP) and a Construction Permit through SDCI, plus mechanical, electrical, and plumbing sub-permits. We manage the full permit process.
Yes. We start with a site assessment to evaluate soil conditions, slope, zoning, and utility access before building begins.
We serve Seattle, Bellevue, Kirkland, Mercer Island, Redmond, Renton, and King County.
Contact us today for a free new construction estimate in Seattle.