# Alteration or repair permit 101003550 at 641 W Lake St, Chicago

Chicago Department of Buildings permit 101003550: issued Apr 11, 2023 for alteration or repair work at 641 W Lake St. 2019 CBC Self cert interior non-structural demolition existing office on 2nd floor, 19774 sf area of work as per plans. No change of use.

- Permit number: 101003550
- Issued: Apr 11, 2023
- Type of work: Alteration or repair (city: Permit - renovation/alteration)
- Status: Other (city: Phased permitting)
- Reported cost: $45,000
- ZIP code: 60661 (derived from location)
- All permits at this address: https://nearbypermits.com/chicago/address/641-w-lake-st/

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Source: Chicago Department of Buildings permit data (https://data.cityofchicago.org/d/ydr8-5enu). Checked 2026-10-17 15:37 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

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Every permit at 641 W Lake St: https://nearbypermits.com/chicago/address/641-w-lake-st/