# Fire systems permit B100998850 at 351 E 21st St, Chicago

Chicago Department of Buildings permit B100998850: issued Jan 17, 2023 for fire systems work at 351 E 21st St. Fire alarm permit modify existing city of chicago approved high rise system, add 1 relay for door unlocking for a security cage in suite 130.

- Permit number: B100998850
- Issued: Jan 17, 2023
- Type of work: Fire systems (city: Fire alarm system, permit – express permit program)
- Status: Finished (city: Complete)
- Reported cost: $4,255
- ZIP code: 60616 (derived from location)
- All permits at this address: https://nearbypermits.com/chicago/address/351-e-21st-st/

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Source: Chicago Department of Buildings permit data (https://data.cityofchicago.org/d/ydr8-5enu). Checked 2026-10-05 19:30 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

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Every permit at 351 E 21st St: https://nearbypermits.com/chicago/address/351-e-21st-st/