# Addition or alteration permit 6599399-CN at 2401 4th Ave, Seattle

Seattle Department of Construction and Inspections permit 6599399-CN, issued May 26, 2017 for 2401 4th Ave: addition or alteration. Construct tenant Improvements to 4th floor per (STFI)

- Permit number: 6599399-CN
- Issued: May 26, 2017
- Type: Addition or alteration
- Status: Completed
- Reported cost: $73,952
- ZIP code: 98121
- All permits at this address: https://nearbypermits.com/seattle/address/2401-4th-ave/

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Source: Seattle Department of Construction and Inspections permit data (https://cos-data.seattle.gov/d/76t5-zqzr). Checked 2026-10-01 10:07 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/