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Get ProCommercial contractor · Chicago, IL
3 commercial and multifamily permits on 3 projects since Dec 12. Most recent permit issued August 6, 2026.
| Month | Permits |
|---|---|
| December '24 | 1 |
| April '25 | 1 |
| August '26 | 1 |
A project shows here 30 days after Old School Engineering LLC’s first permit on it. Newer jobs and phone numbers are included with Pro.
| Latest permit | Project | Type | Value |
|---|---|---|---|
| Sep 11 | 621 S Plymouth Ct | commercialHVAC / Mechanical, Roofing | $577K |
| Apr 4 | 30 W Erie St | commercialHVAC / Mechanical | $177K |
| Aug 19 | 7201 S Yates Blvd | multifamilyBuilding, HVAC / Mechanical | $254K |
Source: building permit records from official city open-data portals, checked daily. Data through . How we count