# Alteration or repair permit 6805777-BK at 800 Union St, Seattle

Seattle Department of Construction and Inspections permit 6805777-BK: issued Dec 7, 2020 for alteration or repair work at 800 Union St. Blanket permit for tenant improvements to Washington Institute for Coagulation existing office space on the 19th floor per plans.

- Permit number: 6805777-BK
- Issued: Dec 7, 2020
- Type of work: Alteration or repair (city: Tenant Improvment, Commercial)
- Status: Finished (city: Completed)
- Reported cost: $1,000,000
- ZIP code: 98101
- All permits at this address: https://nearbypermits.com/seattle/address/800-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 2026-10-06 22:12 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

Every permit at 800 Union St: https://nearbypermits.com/seattle/address/800-union-st/