Preview 1,007,018 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 101081181

400 S LA SALLE ST

DDS 2019 CBRC: PHASE 2 OF 3: INFRASTRUCTURE UPGRADES. CONVERT 7 STORY OFFICE BUILDING TO A DATA CENTER. REINFORCEMENT OF EXISTING FLOORS. ARCHITECTURAL PLANS PROVIDED FOR REFERENCE. ELECTRICAL WORK LIMITED TO ELECTRICAL DISTRIBUTION FROM COMED VAULT TO UPPER FLOORS. MECHANICAL, PLUMBING AND FIRE PROTECTION WORK TO BE PERMITTED UNDER PHASE 3. EQUIPMENT TO BE PERMITTED UNDER PHASE 3. PHASE 1 DEMOLITION ONLY WORK PERMITTED UNDER 101083036. IA CONSTRUCTION; B-BUSINESS CONSULTANT REVIEWER: V3 COMPANIES OF IL

Permit

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

Location

City
Chicago
State
IL

Dates

Applied
2026-05-08
Issued
2026-07-06
Time to issue
59 days

Chicago details

Review type
DIRECT DEVELOPER SERVICES
Milestone
INSPECTIONS
Community area (code)
32

Data as of 2026-09-21.

Other permits issued in Chicago, July 2026