# Addition permit 6506948-CN at 1601 5th Ave, Seattle

Seattle Department of Construction and Inspections permit 6506948-CN: issued Jul 14, 2016 for addition work at 1601 5th Ave. Construct additions and alterations to existing commercial building (Westlake Center) on levels 1 2 and 3 per plan.

- Permit number: 6506948-CN
- Issued: Jul 14, 2016
- Type of work: Addition (city: Addition/Alteration, Commercial)
- Status: Finished (city: Completed)
- Reported cost: $5,200,000
- ZIP code: 98101
- All permits at this address: https://nearbypermits.com/seattle/address/1601-5th-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 2026-10-08 11:18 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

Every permit at 1601 5th Ave: https://nearbypermits.com/seattle/address/1601-5th-ave/