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 101029835

20 S CLARK ST

INTERIOR ALTERATIONS TO EXISTING 8TH FLOOR TENANT SUITE, 13,000 SF, INCLUDING SLAB INFILL AT 9TH FLOOR WHERE COMMUNICATING STAIR IS REMOVED. HI-RISE BUILDING, TYPE 1A CONSTRUCTION, FULLY SPRINKLED BUILDING, BUSINESS OCCUPANCY, NO CHANGE IN USE. NO TELECOMMUNICATION ROOM OVER 150 SF. SELF CERTIFICATION PERMIT PROCESS, STRUCTURAL PEER REVIEW.

Permit

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

Location

City
Chicago
State
IL

Dates

Applied
2023-09-20
Issued
2023-09-27
Time to issue
7 days

Chicago details

Review type
SELF CERT
Milestone
CERTIFICATE OF OCCUPANCY PENDING (TEMPORARY OR PARTIAL OCCUPANCY APPROVED)
Community area (code)
32

Data as of 2026-09-20.

Other permits issued in Chicago, September 2023