{"trade":"excavation","week":"2012-W12","weekStart":"2012-03-19","weekEnd":"2012-03-25","fetchedAt":"2026-08-06T21:04:22.895Z","source":{"dataset":"ydr8-5enu","api":"https://data.cityofchicago.org/resource/ydr8-5enu.json","page":"https://data.cityofchicago.org/Buildings/Building-Permits/ydr8-5enu"},"ok":true,"error":null,"truncated":false,"permits":[{"permit":"100431505","permitType":"PERMIT - RENOVATION/ALTERATION","issueDate":"2012-03-20","address":"4858 N MASON AVE","workDescription":"INTERIOR ALTERATIONS TO SFR TO REPLACE REAR ENCLOSED PORCH AND ERECT REAR 1-STORY OPEN DECK AND EXCAVATE THE BASEMENT SLAB ONE FEET DOWN. (SELF CERTIFICATION PROJECT - SUBJECT TO AUDIT & FIELD INSPECTION)","reportedCost":100000,"cityRecordUrl":"https://data.cityofchicago.org/resource/ydr8-5enu.json?permit_=100431505"}]}