Preview 436,579 permits — every permit Chicago, Austin and Seattle issued in the last ten years. The full load is in progress, so this is how far it has got. Sourced from city open-data portals. Data as of 2026-09-20.

Chicago · permit 100797669

555 W MADISON ST

REPLACE TWO CHILLERS WITH TWO 350 TON, WATER COOLED, SELF-CONTAINED, R134A, YORK CENTRIFUGAL CHILLERS, LOCATED ON THE 50TH FLOOR, AND SERVING THE ENTIRE BUILDING(TOWER #4). REPLACE ASSOCIATED, SINGLE CELL, COOLING TOWER ON THE ROOF. BRING MACHINERY ROOM UP TO CODE. STAMPED PLANS PROVIDED.

Permit

Permit type
PERMIT - EASY PERMIT PROCESS
Class
Unknown
Trade
Mechanical
Nature of work
Other

Location

City
Chicago
State
IL

Dates

Applied
2018-12-17
Issued
2018-12-17
Time to issue
same day

Chicago details

Review type
EASY PERMIT
Community area (code)
28

Data as of 2026-09-20.

Other permits issued in Chicago, December 2018