What was permitted
A significant mechanical systems upgrade is taking place at 424 Madison Avenue in Manhattan's Midtown-Times Square neighborhood. This project focuses on installing a new HVAC system on the fourth floor.
The permit was issued on August 3, 2026, for this extensive HVAC installation, with an estimated project cost of $120,000. J L HVAC INC is the general contractor managing this mechanical work.
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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 | 850714266 |
|---|---|
| Work permit # | M01389310-S1-MS |
| Job filing number | — |
| Work type | Mechanical Systems |
| Status | Permit Issued |
| Job description | MS for Install new 4th-floor HVAC system, including a condenser in the mechanical enclosure; three air handlers with ductwork and refrigerant piping; one ERV; one infrared heater; one duct heater for fresh air; and two bathroom exhaust fans. |
| Floor / unit | Floor Number(s) 004 through 004 |
| Estimated cost | $120,000 |
| Approved | April 29, 2026 |
| Issued | August 3, 2026 |
| Expires | April 10, 2027 |
| BBL | — |
| BIN | — |
Property owner
BLDG Management Co.
Christa Collier
Related searches
mechanical systemsHVAC installationManhattanMidtown-Times Squarecommercial renovation$120,000 project cost