Mckain Construction
ADU builder in Seattle, WA · Licensed
1completed ADU permits
1total ADU permits
2017year active on record
$66,964median est. project cost
Washington state license
- License
- MCKAIC*940MJ
- Status
- Licensed
- Type
- CONSTRUCTION CONTRACTOR
- Expires
- 2027-10-31
- Registered in
- SEATTLE, 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 |
|---|---|---|---|---|---|---|
| 6597809-CN | Seattle | 2017-12-10 | Completed | $66,964 | 4102 38TH AVE SW | Remove detached garage and construct detached accessory dwelling unit (DADU) with attached garage accessory to single family residence per plan |
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