Fire alarm: modification of existing system
Fire systems at 645 N Michigan Ave, Chicago
Chicago Department of Buildings permit B200473545: issued Jun 29, 2026 for fire systems work at 645 N Michigan Ave. Fire alarm: modification of existing system. Associated building permit:101079902. Affects: 0 dwelling units; 1 non-residential units. High-rise building: yes. Voice communication: yes. Special locking: yes. Monitoring type: supervising station . Specific location: suite 543.
- Permit number
- B200473545
- Issued
- Type of work
- Fire systems
- Status
- Issued
- Reported cost
- Not listed
- ZIP code
- 60611 (from the permit's location)
- City's category
- Fire alarm system, permit – express permit program
- City's status
- Active
- Source
- Chicago Department of Buildings permit data (this record)
Type of work and status are our own standard labels, so permits compare across cities. The city's wording is in the "City's category" and "City's status" rows. We show costs under $100 as not listed, because filers often enter $0 or $1 when the city doesn't require a cost.
All permits at 645 N Michigan Ave, and what's permitted nearby
Chicago Department of Buildings updated its data Oct 2, 2026. We checked it Oct 2, 20:45 UTC. Official data.
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