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 100963925

4641 N MALDEN ST

INSTALLATION OF NEW GEOTHERMAL SYSTEM - 24 TON LOOPFIELD W/ 48 4"Ø BOREHOLES 75'± DEEP EXCAVATION TOEXISTING BASEMENT OF EXISTING 3 STORY 3A 8 D.U. APARTMENT BUILDING, ELECTRICAL RISER & CHANGE EXISTINGWATER HEATERS FROM GAS TO ELECTRIC

Permit

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

Location

City
Chicago
State
IL

Dates

Applied
2022-04-15
Issued
2022-07-13
Time to issue
89 days

Value and contractor

Declared value
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Total fee
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Contractor
DLG DEVELOPMENT CORP.

Chicago details

Review type
STANDARD PLAN REVIEW
Milestone
COMPLETE
Community area (code)
3

Data as of 2026-09-20.

Other permits issued in Chicago, July 2022