Fire systems at 307 N Michigan Ave
Chicago Department of Buildings permit B200509686, issued Sep 15, 2026 for 307 N Michigan Ave: fire systems. Fire alarm: modification of existing system. Associated building permit:101082990. Affects: 0 dwelling units; 1 non-residential units. High-rise building: yes. Voice communication: yes. Special locking: no. Monitoring type: supervising station . Specific location: 14th floor.
- Permit number
- B200509686
- Issued
- Type of work
- Fire systems
- Status
- Issued
- Reported cost
- Not listed
- ZIP code
- 60601 (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 standard labels, so permits compare across cities. The city's own wording is shown above. Costs under $100 are shown as not listed, because filers often enter $0 or $1 when no cost is required.
All permits at 307 N Michigan Ave
Chicago Department of Buildings last updated its data Oct 1, 2026. We checked it 2026-10-01 15:49 UTC. Official data.