# Addition permit 6274644-CN at 500 4th Ave, Seattle

Seattle Department of Construction and Inspections permit 6274644-CN: issued Jul 22, 2011 for addition work at 500 4th Ave. Modification to an existing AT&T facility to replace (3) existing antenna ballast mounts with (3) antenna mounts connected to roof structure and addition of (3) LTE antennas and ancillary equipment;existing antennas to remain per plan.

- Permit number: 6274644-CN
- Issued: Jul 22, 2011
- Type of work: Addition (city: Addition/Alteration, Commercial)
- Status: Finished (city: Completed)
- Reported cost: $15,000
- ZIP code: 98104
- All permits at this address: https://nearbypermits.com/seattle/address/500-4th-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 2026-10-10 19:35 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

Every permit at 500 4th Ave: https://nearbypermits.com/seattle/address/500-4th-ave/