# Addition permit 7118598-CN at 509 21st Ave E, Seattle

Seattle Department of Construction and Inspections permit 7118598-CN: issued Jun 16, 2026 for addition work at 509 21st Ave E. Construct addition and alterations to a single-family residence per plans.

- Permit number: 7118598-CN
- Issued: Jun 16, 2026
- Type of work: Addition (city: Addition/Alteration, Single Family/Duplex)
- Status: Issued (city: Issued)
- Reported cost: $200,000
- ZIP code: 98112
- All permits at this address: https://nearbypermits.com/seattle/address/509-21st-ave-e/

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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 2026-10-11 21:53 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

Every permit at 509 21st Ave E: https://nearbypermits.com/seattle/address/509-21st-ave-e/