What was permitted
Extensive mechanical work is underway at 3900 N Lake Shore Dr in Chicago's Lake View neighborhood, involving ductwork and hydronic piping extension and reconfiguration. This project impacts two systems and includes the installation and modification of two make-up air units and two heat pump systems.
This permit was issued on August 10, 2026, and is active. The reported project cost is $4,962,400, with MECHANICAL INCORPORATED DBA HELM MECHANICAL as the contractor. This significant investment points to a large-scale upgrade or renovation of the building's HVAC and related systems.
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View the official permit record
Tracking number, work description, cost and dates
View the official permit record
Tracking number, work description, cost and dates
| Tracking number | B200476074 |
|---|---|
| Work permit # | — |
| Job filing number | — |
| Work type | Mechanical Work |
| Status | ACTIVE |
| Job description | DUCTWORK EXTENSION/RECONFIGURATION, HYDRONIC PIPING EXTENSION/RECONFIGURATION, REPAIR/REPLACEMENT AFFECTING 2 SYSTEMS : 1 MAKE UP AIR UNIT(VENTROL / NORTEK AIR SOLUTIONS - CUSTOM MODEL: 18-85-145T-34X32X26-B2; BASEMENT (MAU-1A); HOT WATER & ELECTRIC POWERED) 1 MAKE UP AIR UNIT(VENTROL / NORTEK AIR SOLUTIONS - CUSTOM MODEL: 18-85-145T-34X32X26-B2 (MAU-1B); HOT WATER & ELECTRIC POWERED) 2 OTHER HEAT PUMP(LG - ZRUM336DTE6 (ZRUM144DTE6 + ZRUM192DTE6); (CU-1 AND CU-2); ROOF) . ELECTRICAL WORK UNDER THIS PERMIT = NO . LOCATIONS: 0 RESIDENTIAL UNIT(S), 0 NON-RESIDENTIAL UNIT(S), 2 INTERIOR COMMON AREAS, BASEMENT AND ROOF. |
| Floor / unit | — |
| Estimated cost | $4,962,400 |
| Approved | August 6, 2026 |
| Issued | August 10, 2026 |
| Expires | — |
| BBL | — |
| BIN | — |
Property owner
First Service Residential
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