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 101005026

401 N MICHIGAN AVE

*** REVISION TO ISSUED PERMIT #100992312 ***INTERIOR ALTERATION OF EXISTING 15TH FLOOR OFFICE SPACE WITH NEW PLUMBING AND ELECTRICAL WORK. NO CHANGE IN USE. SCOPE OF REVISIONS: BREAK AREA #1520-26 AND FULFILLMENT AREA #1520-28 WILL "FLIP-FLOP" LOCATIONS. SUBSEQUENTLY, THE I.T. ROOM #1520-27 IS TO BE MADE SMALLER. THE SIDE-BY-SIDE COAT CLOSETS WHICH WERE SHOWN ON THE ORIGINAL PLAN WILL BE ELIMINATED.

Permit

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

Location

City
Chicago
State
IL

Dates

Applied
2023-02-15
Issued
2023-02-15
Time to issue
same day

Value and contractor

Declared value
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Total fee
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Contractor
INTERIOR ALTERATIONS

Chicago details

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

Data as of 2026-09-20.

Other permits issued in Chicago, February 2023