Mechanical Systems Modification at 51 Madison Avenue, Manhattan
51 MADISON AVENUE, MANHATTAN, 10010 · Midtown South-Flatiron-Union Square
Estimated Project Cost
$0
Mechanical Systems
Issued
June 9, 2026
Expires
September 30, 2026
License
General Contractor
About This Project
For property owners in Midtown South-Flatiron-Union Square, this permit highlights the substantial investment in mechanical system upgrades. The work involves modifications to the existing HVAC system as detailed in the submitted plans.
This significant mechanical systems project was permitted on June 9, 2026, with an estimated cost of $530,000. JT MAGEN & COMPANY INC is the general contractor for this extensive modification.
What This Means For You
A major HVAC system modification in Midtown South, Manhattan, had an estimated project cost of $530,000 and was permitted on June 9, 2026.
The Business That Did This Work
JT MAGEN & COMPANY INC
General Contractor · License #002571
44 WEST 28TH STREET, 11TH FL
73 permits filed · 7 neighborhoods
Permit Details
| Tracking Number | 354302412 |
| Work Permit # | M01400880-I1-MS |
| Job Filing Number | — |
| Work Type | Mechanical Systems |
| Status | Permit Issued |
| Job Description | Modification to existing HVAC system as per plans filed herewith. No change in use, egress or occupancy under this application. |
| Floor / Unit | Floor Number(s) 21 through 23 |
| Estimated Cost | $530,000 |
| Approved | June 8, 2026 |
| Issued | June 9, 2026 |
| Expires | September 30, 2026 |
| BBL | — |
| BIN | — |
Property Owner
PR
robert sweeney
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