Preview 555,290 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 100868970

3501 N CALIFORNIA AVE

NEW 1 STORY 38'8" X 31'4" ANCILLARY SUPERCONDUCTOR EQUIPMENT BUILDING AT EXISTING COMED SUB-STATION AS PER PLANS. NO PLUMBING WORK.2019 CHICAGO BUILDING CODE**CERTIFIED CORRECTIONS- - SUBJECT TO FIELD INSPECTIONS & AUDIT **

Permit

Permit type
PERMIT - NEW CONSTRUCTION
Class
Unknown
Trade
Electrical
Nature of work
New
Status
EXPIRED

Location

City
Chicago
State
IL

Dates

Applied
2020-04-24
Issued
2020-09-09
Time to issue
138 days

Chicago details

Review type
STANDARD PLAN REVIEW
Milestone
CERTIFICATE OF OCCUPANCY PENDING (TEMPORARY OR PARTIAL OCCUPANCY APPROVED)
Community area (code)
21

Data as of 2026-09-20.

Other permits issued in Chicago, September 2020