# Addition or alteration permit 7116525-CN at 11222 C 1st Ave NW, Seattle

Seattle Department of Construction and Inspections permit 7116525-CN, issued Jul 12, 2026 for 11222 C 1st Ave NW: addition or alteration. Allow 2nd detached accessory dwelling unit [DADU] to existing single-family use per land use code. Construct northeast one-family dwelling per plan. Existing (2) one-family dwellings to remain. Demo of detached garage included.

- Permit number: 7116525-CN
- Issued: Jul 12, 2026
- Type: Addition or alteration
- Status: Issued
- Reported cost: $100,000
- ZIP code: 98177
- All permits at this address: https://nearbypermits.com/seattle/address/11222-c-1st-ave-nw/

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Source: Seattle Department of Construction and Inspections permit data (https://cos-data.seattle.gov/d/76t5-zqzr). Checked 2026-10-01 10:07 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/