# Fire Alarm System permit B200410773 at 20 N Wacker Dr, Chicago

City of Chicago permit B200410773, issued Feb 18, 2025 for 20 N Wacker Dr: fire alarm system. Fire alarm: modification of existing system. Associated building permit:101062758. Affects: 0 dwelling units; 1 non-residential units. High-rise building: yes. Voice communication: yes. Special locking: yes. Monitoring type: supervising station . Specific location: 39th floor suite 3900.

- Permit number: B200410773
- Issued: Feb 18, 2025
- Type: Fire Alarm System
- Status: Suspended
- Reported cost: Not listed
- Community area: Loop (32)
- All permits at this address: https://nearbypermits.com/chicago/address/20-n-wacker-dr/

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Source: City of Chicago open data (https://data.cityofchicago.org/d/ydr8-5enu). Checked 2026-10-01 03:29 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/