# Alteration or repair permit 100901008 at 70 W Madison St, Chicago

Chicago Department of Buildings permit 100901008: issued Dec 21, 2020 for alteration or repair work at 70 W Madison St. Self cert. Renovation of existing building core toilet rooms on floors 51, 52 and 53 of a 57 story high rise. Existing use is b-business and remains b-business (no change). Each floor will be fully occupied by the same tenant and the associated office space will be used as legal offices. Work includes selective demolition, construction, and plumbing. Existing electrical and mechanical systems require no changes.

- Permit number: 100901008
- Issued: Dec 21, 2020
- Type of work: Alteration or repair (city: Permit - renovation/alteration)
- Status: Finished (city: Complete)
- Reported cost: $250,000
- ZIP code: 60602 (derived from location)
- All permits at this address: https://nearbypermits.com/chicago/address/70-w-madison-st/

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Source: Chicago Department of Buildings permit data (https://data.cityofchicago.org/d/ydr8-5enu). Checked 2026-10-05 15:10 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

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Every permit at 70 W Madison St: https://nearbypermits.com/chicago/address/70-w-madison-st/