Preview 887,040 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 B200441591

150 N MICHIGAN AVE

.SCOPE: NONSTRUCTURAL INTERIOR ALTERATIONS TO EXISTING CONFERENCE ROOMS. CONVERT 2 EXISTING OFFCES INTO CONFERENCE ROOM. LOCATIONS: 0 RESIDENTIAL UNIT(S), 1 NON-RESIDENTIAL UNIT(S), SUITE 2500.

Permit

Permit type
PERMIT – EXPRESS PERMIT PROGRAM
Class
Unknown
Trade
Electrical
Nature of work
Alteration
Work
Nonstructural Interior Work
Status
COMPLETE

Location

City
Chicago
State
IL

Dates

Applied
2025-09-08
Issued
2025-10-09
Time to issue
31 days

Chicago details

Review type
EXPRESS PERMIT PROGRAM
Milestone
COMPLETE
Community area (code)
32

Data as of 2026-09-21.

Other permits issued in Chicago, October 2025