GC Construction
ADU builder in Seattle, WA · Licensed
1completed ADU permits
1total ADU permits
2020year active on record
$27,432median est. project cost
Washington state license
- License
- GCCONC*851CS
- Status
- Licensed
- Type
- CONSTRUCTION CONTRACTOR
- Expires
- 2027-02-10
- Registered in
- SHORELINE, WA
As reported by WA L&I on 2026-10-13. Always re-verify at lni.wa.gov/verify.
Permit record
Every ADU-related permit in covered city records naming this contractor. Links go to each city's official permit portal.
| Permit | City | Issued | Status | Est. cost | Address | Description |
|---|---|---|---|---|---|---|
| 6784259-CN | Seattle | 2020-09-18 | Completed | $27,432 | 1035 NE 92ND ST | Construct alterations to create attached accessory dwelling unit [AADU] per plan. |
Is this your company? Claim this profile free to add your website, contact details, and corrections.
Or get featured — $99/mo, top placement above the rankings homeowners land on. How it works →