# Alteration or repair permit 6111246-CN at 1420 5th Ave, Seattle

Seattle Department of Construction and Inspections permit 6111246-CN: issued Aug 31, 2006 for alteration or repair work at 1420 5th Ave. Tenant improvements to existing office space on northeast portion of 5th floor for Tetra Tech Inc. Subject to Field Inspection.

- Permit number: 6111246-CN
- Issued: Aug 31, 2006
- Type of work: Alteration or repair (city: Addition/Alteration, Commercial)
- Status: Finished (city: Completed)
- Reported cost: $70,000
- ZIP code: 98101
- All permits at this address: https://nearbypermits.com/seattle/address/1420-5th-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 2026-10-11 22:10 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

Every permit at 1420 5th Ave: https://nearbypermits.com/seattle/address/1420-5th-ave/