# Alteration or repair permit 6931340-CN at 820 18th Ave, Seattle

Seattle Department of Construction and Inspections permit 6931340-CN: issued May 10, 2023 for alteration or repair work at 820 18th Ave. Construct alterations to an existing commercial building at the rooftop level minor communications antenna facility (AT&T) and at equipment room per plan.

- Permit number: 6931340-CN
- Issued: May 10, 2023
- Type of work: Alteration or repair (city: Addition/Alteration, Commercial)
- Status: Finished (city: Completed)
- Reported cost: $15,000
- ZIP code: 98122
- All permits at this address: https://nearbypermits.com/seattle/address/820-18th-ave/

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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 2026-10-07 17:56 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

Every permit at 820 18th Ave: https://nearbypermits.com/seattle/address/820-18th-ave/