Steffes Construction Inc.
1completed ADU permits
1total ADU permits
2019–2019active years on record
$101,280median est. project cost
Washington state license
- License
- STEFFCI894B5
- Status
- license active
- Type
- CONSTRUCTION CONTRACTOR
- Expires
- 2027-02-20
- Registered in
- SEATTLE, WA
As reported by WA L&I on 2026-08-30. 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 |
|---|---|---|---|---|---|---|
| 6690142-CN | 2019-08-28 | Completed | $101,280 | 10733 56TH AVE S | Construct detached accessory dwelling unit (DADU) - and carport addition to existing detached garage - accessory to existing single-family residence per plan. |
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