# Alteration or repair permit 6591071-CN at 1800 9th Ave, Seattle

Seattle Department of Construction and Inspections permit 6591071-CN: issued Apr 11, 2017 for alteration or repair work at 1800 9th Ave. Interior alterations to NW portion of 9th floor of office building subject to field inspection (STFI).

- Permit number: 6591071-CN
- Issued: Apr 11, 2017
- Type of work: Alteration or repair (city: Addition/Alteration, Commercial)
- Status: Finished (city: Completed)
- Reported cost: $4,500
- 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 2026-10-11 00:51 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/