# Fire systems permit B200455341 at 1 N Dearborn St, Chicago

Chicago Department of Buildings permit B200455341, issued Jan 22, 2026 for 1 N Dearborn St: fire systems. Fire alarm: repair existing system. Affects: 0 dwelling units; 1 non-residential units. High-rise building: yes. Voice communication: no. Special locking: yes. Monitoring type: supervising station . Specific location: 1st floor.

- Permit number: B200455341
- Issued: Jan 22, 2026
- Type of work: Fire systems (city: Fire alarm system, permit – express permit program)
- Status: Issued (city: Active)
- Reported cost: Not listed
- ZIP code: 60602 (derived from location)
- All permits at this address: https://nearbypermits.com/chicago/address/1-n-dearborn-st/

---
Source: Chicago Department of Buildings permit data (https://data.cityofchicago.org/d/ydr8-5enu). Checked 2026-10-02 09:23 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.