# Fire systems permit B100804867 at 641 W Lake St, Chicago

Chicago Department of Buildings permit B100804867: issued Feb 14, 2019 for fire systems work at 641 W Lake St. Add devices to existing fire alarm system. Existing fire alarm system is non-required and building is not considered a high-rise.

- Permit number: B100804867
- Issued: Feb 14, 2019
- Type of work: Fire systems (city: Fire alarm system, permit – express permit program)
- Status: Finished (city: Complete)
- Reported cost: $5,000
- 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 2026-10-15 08:38 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/