# Alteration or repair permit 6296218-CN at 1800 9th Ave, Seattle

Seattle Department of Construction and Inspections permit 6296218-CN: issued Nov 21, 2011 for alteration or repair work at 1800 9th Ave. Construct tenant Improvements to existing office building on floors 2-5 per plans.

- Permit number: 6296218-CN
- Issued: Nov 21, 2011
- Type of work: Alteration or repair (city: Addition/Alteration, Commercial)
- Status: Finished (city: Completed)
- Reported cost: $1,800,000
- ZIP code: 98101
- All permits at this address: https://nearbypermits.com/seattle/address/1800-9th-ave/

---
Source: Seattle Department of Construction and Inspections permit data (https://cos-data.seattle.gov/d/76t5-zqzr), City of Seattle. Checked 2026-10-11 18:59 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/