What was permitted
A fire alarm system modification is in progress at 20 S Clark St in Chicago's Loop neighborhood. This work involves updating the existing system on the 24th and 25th floors of this high-rise building.
This permit was issued on June 8, 2026, and is currently active. The permit fee was $325, covering the modification of the fire alarm system, which includes voice communication capabilities.
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View the official permit record
Tracking number, work description, cost and dates
View the official permit record
Tracking number, work description, cost and dates
| Tracking number | B200471574 |
|---|---|
| Work permit # | — |
| Job filing number | — |
| Work type | Fire Alarm System |
| Status | ACTIVE |
| Job description | FIRE ALARM: MODIFICATION OF EXISTING SYSTEM. ASSOCIATED BUILDING PERMIT:101081410. AFFECTS: 0 DWELLING UNITS; 1 NON-RESIDENTIAL UNITS. HIGH-RISE BUILDING: YES. VOICE COMMUNICATION: YES. SPECIAL LOCKING: NO. MONITORING TYPE: SUPERVISING STATION . SPECIFIC LOCATION: 24TH & 25TH. |
| Floor / unit | — |
| Estimated cost | Not reported |
| Approved | June 4, 2026 |
| Issued | June 8, 2026 |
| Expires | — |
| BBL | — |
| BIN | — |
Property owner
Ravelinreit
Related searches
fire alarm systemsystem modificationhigh-rise buildingChicagoLoopSiemens Industry Incsafety system