# Addition permit 6147414-CN at 110 Union St, Seattle

Seattle Department of Construction and Inspections permit 6147414-CN: issued Sep 13, 2007 for addition work at 110 Union St. Office tenent improvements (T-Mobile)including spiral stair addition on 4th and 5th floors of existing comm bldg per plan.

- Permit number: 6147414-CN
- Issued: Sep 13, 2007
- Type of work: Addition (city: Addition/Alteration, Commercial)
- Status: Finished (city: Completed)
- Reported cost: $350,000
- ZIP code: 98101
- All permits at this address: https://nearbypermits.com/seattle/address/110-union-st/

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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 2026-10-09 19:21 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

Every permit at 110 Union St: https://nearbypermits.com/seattle/address/110-union-st/