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 100823085

4137 N MASON AVE

ERECT 2ND FLOOR FRAME ADDITION, INTERIOR REMODELING & NEW REAR OPEN WOOD DECK TO EXISTING 1 STORY BRICK SINGLE FAMILY RESIDENCE AS PER PLAN.

Permit

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

Location

City
Chicago
State
IL

Dates

Applied
2019-06-21
Issued
2019-08-01
Time to issue
41 days

Chicago details

Review type
STANDARD PLAN REVIEW
Milestone
COMPLETE
Community area (code)
15

Data as of 2026-09-20.

Other permits issued in Chicago, August 2019