# Addition permit 7143270-CN at 9518 28th Ave NW, Seattle

Seattle Department of Construction and Inspections permit 7143270-CN: issued Aug 26, 2026 for addition work at 9518 28th Ave NW. Construct addition and substantial alterations to existing one-family dwelling per plan.

- Permit number: 7143270-CN
- Issued: Aug 26, 2026
- Type of work: Addition (city: Addition/Alteration, Single Family/Duplex)
- Status: Issued (city: Issued)
- Reported cost: $130,403
- ZIP code: 98117
- All permits at this address: https://nearbypermits.com/seattle/address/9518-28th-ave-nw/

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Source: Seattle Department of Construction and Inspections permit data (https://cos-data.seattle.gov/d/76t5-zqzr), City of Seattle. Checked 2026-10-12 09:53 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

Every permit at 9518 28th Ave NW: https://nearbypermits.com/seattle/address/9518-28th-ave-nw/