Mechanical Systems Work at 9115 5 Avenue, Brooklyn
9115 5 AVENUE, BROOKLYN, 11209 · Bay Ridge
What was permitted
This permit details extensive Mechanical Systems work at 9115 5 AVENUE BROOKLYN 11209. The project involves removing and replacing existing unit ventilators, exhaust fans, and supply air ductwork. New components will include unit ventilators, a heating and ventilating unit, exhaust fans, supply fans, and an electric duct heater, along with new outdoor intake openings and associated ductwork. The work spans the Cellar, Floors 1 through 3, and the Roof.
The permit for this significant project, with an estimated cost of $1,527,422, was issued on March 26, 2026, and is set to expire on November 11, 2026. This "Permit Issued" status indicates that the necessary approvals have been granted for the work to proceed.
INFINITY CONTRACTING SERV (GC) is listed as the general contractor responsible for this large-scale mechanical upgrade. The property owner is the NYC SCHOOL CONSTRUCTION AUTHORITY, suggesting this project is likely for a public school facility.
This permit signifies a major mechanical upgrade project for the property, likely a school given the owner. Nearby residents may observe construction activity related to the installation of new HVAC systems.
What it cost
Issued
March 26, 2026
Expires
November 11, 2026
License
General Contractor
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Filed by INFINITY CONTRACTING SERV · 27 permits across 11 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 | 131547784 |
| Work Permit # | B00674023-I1-GC |
| Job Filing Number | — |
| Work Type | Structural |
| Status | Permit Issued |
| Job Description | K104_Remove and replace existing unit ventilators, exhaust fans, and supply air ductwork. Provide new unit ventilators, heating and ventilating unit, exhaust fans, supply fans, and electric duct heater. Provide new outdoor intake openings and ductwork. |
| Floor / Unit | Cellar, Floor Number(s) 1 through 3, Roof |
| Estimated Cost | $1,527,422 |
| Approved | March 11, 2022 |
| Issued | March 26, 2026 |
| Expires | November 11, 2026 |
| BBL | — |
| BIN | — |
Property Owner
NYC SCHOOL CONSTRUCTION AUTHORITY
CHARLESTON ALBERT