# Alteration or repair permit 6429632-CN at 1800 9th Ave, Seattle

Seattle Department of Construction and Inspections permit 6429632-CN: issued Oct 17, 2014 for alteration or repair work at 1800 9th Ave. Construct alterations to portion of 2nd floor for tenant improvement to offices per plan. (Mechanical system review included).

- Permit number: 6429632-CN
- Issued: Oct 17, 2014
- Type of work: Alteration or repair (city: Addition/Alteration, Commercial)
- Status: Finished (city: Completed)
- Reported cost: $259,224
- ZIP code: 98101
- All permits at this address: https://nearbypermits.com/seattle/address/1800-9th-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 13:49 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

Every permit at 1800 9th Ave: https://nearbypermits.com/seattle/address/1800-9th-ave/