Preview 675,283 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 2026-09-21.

Chicago · permit 100837021

401 W ONTARIO ST

REPLACE TWO ROOFTOP UNITS WITH ONE 17.5 TON, AND ONE 12.5 TON, AIR COOLED, SELF-CONTAINED, R410A, CARRIER ROOFTOP UNITS, SERVING OFFICE SPACE.

Permit

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

Location

City
Chicago
State
IL

Dates

Applied
2019-08-21
Issued
2019-08-21
Time to issue
same day

Chicago details

Review type
EASY PERMIT
Community area (code)
8

Data as of 2026-09-20.

Other permits issued in Chicago, August 2019