# Fire systems permit B101057963 at 172 E Chestnut St, Chicago

Chicago Department of Buildings permit B101057963: issued Sep 11, 2024 for fire systems work at 172 E Chestnut St. **Fire alarm permit**installation of maglock devices in tenant space (35th floor northwestern university) of an existing city of chicago high rise building fire alarm system. This is a class E occupancy, all work is to be done indoors only on the 35th floor.

- Permit number: B101057963
- Issued: Sep 11, 2024
- Type of work: Fire systems (city: Fire alarm system, permit – express permit program)
- Status: Finished (city: Complete)
- Reported cost: $10,000
- ZIP code: Not listed (derived from location)
- All permits at this address: https://nearbypermits.com/chicago/address/172-e-chestnut-st/

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Source: Chicago Department of Buildings permit data (https://data.cityofchicago.org/d/ydr8-5enu). Checked 2026-10-05 12:00 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

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Every permit at 172 E Chestnut St: https://nearbypermits.com/chicago/address/172-e-chestnut-st/