# Alteration or repair permit 6601636-CN at 505 Madison St, Seattle

Seattle Department of Construction and Inspections permit 6601636-CN: issued Apr 18, 2018 for alteration or repair work at 505 Madison St. Construct tenant improvements to existing commercial office high-rise building (Madison Centre) on the 4th 5th and 28th thru 33rd floors occupy per plan.

- Permit number: 6601636-CN
- Issued: Apr 18, 2018
- Type of work: Alteration or repair (city: Addition/Alteration, Commercial)
- Status: Finished (city: Completed)
- Reported cost: $17,000,000
- ZIP code: 98104
- All permits at this address: https://nearbypermits.com/seattle/address/505-madison-st/

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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 18:31 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

Every permit at 505 Madison St: https://nearbypermits.com/seattle/address/505-madison-st/