Preview 795,237 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 101084518

400 S LA SALLE ST

PHASE 3 OF 3: INTERIOR ALTERATIONS TO EXISTING 7-STORY OFFICE BUILDING TO CONVERT TO A DATA CENTER. WORK TO INCLUDE NEW EQUIPMENT WITH ASSOCIATED MEP UPGRADES. PHASE 1 DEMOLITION ONLY WORK PERMITTED UNDER 101083036. PHASE 2 INFRASTRUCTURE WORK PERMITTED UNDER 101081181. IA CONSTRUCTION; B-BUSINESS

Permit

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

Location

City
Chicago
State
IL

Dates

Applied
2026-06-17
Issued
2026-09-16
Time to issue
91 days

Chicago details

Review type
DIRECT DEVELOPER SERVICES
Milestone
PERMIT ISSUED (FEE DUE)
Community area (code)
32

Data as of 2026-09-21.

Other permits issued in Chicago, September 2026