Mechanical Systems Upgrade at 1100 Elm Avenue, Brooklyn
1100 ELM AVENUE, BROOKLYN, 11230 · Midwood
What was permitted
A significant mechanical systems project is underway at 1100 Elm Avenue in Brooklyn's Midwood neighborhood, involving the installation of new heat pump units on the rooftop. This work also includes the replacement of three gravity ventilators.
This permit was issued on March 31, 2026, with a substantial estimated cost of $500,000. The contractor for this extensive HVAC work is THERMO TECH MECHANICAL I.
Residents in Midwood should note the large scale of mechanical system upgrades, with this project costing $500,000 for heat pump and ventilator replacements.
What it cost
Issued
March 31, 2026
Expires
November 20, 2026
License
General Contractor
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Filed by THERMO TECH MECHANICAL I* · 31 permits across 29 neighborhoods
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 | 676203542 |
| Work Permit # | B00957295-S2-MS |
| Job Filing Number | — |
| Work Type | Mechanical Systems |
| Status | Permit Issued |
| Job Description | INSTALLTION OF NEW HEAT PUMP UNITS ON ROOFTOP LEVEL and replace 3 gravity ventilators. |
| Floor / Unit | Roof |
| Estimated Cost | $500,000 |
| Approved | April 9, 2024 |
| Issued | March 31, 2026 |
| Expires | November 20, 2026 |
| BBL | — |
| BIN | — |
Property Owner
NYC SCHOOL CONSTRUCTION AUTHORITY
CHARLESTON ALBERT