# Alteration or repair permit 100699186 at 641 W Lake St, Chicago

Chicago Department of Buildings permit 100699186: issued Jul 19, 2017 for alteration or repair work at 641 W Lake St. Self cert repair of existing 1200 SQ FT mezzanine office to suite 402 4th floor no change in use.sq. FT Of work: 1200.

- Permit number: 100699186
- Issued: Jul 19, 2017
- Type of work: Alteration or repair (city: Permit - renovation/alteration)
- Status: Finished (city: Complete)
- Reported cost: $83,000
- ZIP code: 60661 (derived from location)
- All permits at this address: https://nearbypermits.com/chicago/address/641-w-lake-st/

---
Source: Chicago Department of Buildings permit data (https://data.cityofchicago.org/d/ydr8-5enu). Checked 2026-10-15 23:51 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

This site provides applications using data that has been modified for use from its original source, www.cityofchicago.org, the official website of the City of Chicago. The City of Chicago makes no claims as to the content, accuracy, timeliness, or completeness of any of the data provided at this site. The data provided at this site is subject to change at any time. It is understood that the data provided at this site is being used at one’s own risk.

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