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 101081881

401 N MICHIGAN AVE

SELF-CERT 2019 CBRC: TENANT IMPROVEMENTS IN EXISTING OFFICE BUILDING FOR A SINGLE OFFICE TENANT ON FLOORS 20¿23. WORK INCLUDES NEW NON-STRUCTURAL PARTITIONS, FINISHES, LIGHTING, MILLWORK, FURNITURE, VENTILATION, AND ELECTRICAL AS PER PLANS. (OCCUPANCY GROUP B; TYPE 1A CONSTRUCTION).

Permit

Permit type
PERMIT - RENOVATION/ALTERATION
Class
Unknown
Trade
Electrical
Nature of work
Alteration
Status
ACTIVE

Location

City
Chicago
State
IL

Dates

Applied
2026-04-20
Issued
2026-04-28
Time to issue
8 days

Chicago details

Review type
SELF CERT
Milestone
INSPECTIONS
Community area (code)
8

Data as of 2026-09-21.

Other permits issued in Chicago, April 2026