Mechanical System Upgrade at 12350 S Avenue O, Chicago
12350 S AVENUE O, Hegewisch
What was permitted
This permit is for mechanical work at 12350 S Avenue O in Chicago's Hegewisch neighborhood, specifically involving the repair/replacement of one make-up air unit. The project includes electrical work and affects one non-residential unit, offering a look at the costs for HVAC system upgrades in commercial settings.
The permit is active and was issued on June 22, 2026, with a reported project cost of $97,836. MIDWEST MECHANICAL GROUP LLC is the contractor for this mechanical system upgrade, which includes work on the rooftop and exterior.
Commercial property owners in Hegewisch can reference the $97,836 project cost for significant mechanical system replacements like make-up air units.
What it cost
Issued
June 22, 2026
Expires
—
License
—
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Filed by MIDWEST MECHANICAL GROUP LLC · 3 permits across 3 areas
View the official permit record
Tracking number, work description, cost, and dates
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View the official permit record
Tracking number, work description, cost, and dates
| Tracking Number | B200473255 |
| Work Permit # | — |
| Job Filing Number | — |
| Work Type | Mechanical Work |
| Status | ACTIVE |
| Job Description | REPAIR/REPLACEMENT AFFECTING 1 SYSTEMS : 1 MAKE UP AIR UNIT(RUPP M# RAM-36, S# S2203684-4) . ELECTRICAL WORK UNDER THIS PERMIT = YES . LOCATIONS: 0 RESIDENTIAL UNIT(S), 1 NON-RESIDENTIAL UNIT(S), EXTERIOR WORK, ROOFTOP. |
| Floor / Unit | — |
| Estimated Cost | $97,836 |
| Approved | June 16, 2026 |
| Issued | June 22, 2026 |
| Expires | — |
| BBL | — |
| BIN | — |
Property Owner
GIJV IL IV, LLC