What was permitted
Significant upgrades to the mechanical systems are underway at 821 Madison Avenue on the Upper East Side, involving the installation of new AC ductwork, air outlets, fans, and radiant floor heating. The existing boiler is also being replaced to improve efficiency and performance.
This project, with an estimated cost of $78,320, received its permit on August 3, 2026. JT MAGEN & COMPANY INC is the general contractor managing the 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 | 150434377 |
|---|---|
| Work permit # | M01386621-S1-MS |
| Job filing number | — |
| Work type | Mechanical Systems |
| Status | Permit Issued |
| Job description | INSTALLATION OF AC DUCTWORK, AIR OUTLETS, FANS, AND RADIANT FLOOR HEATING, AND REPLACEMENT OF EXISTING BOILER IN KIND AS INDICATED ON PLANS. EXISTING AC UNITS TO REMAIN. |
| Floor / unit | Cellar, Floor Number(s) 001 through 005, Roof |
| Estimated cost | $78,320 |
| Approved | June 3, 2026 |
| Issued | August 3, 2026 |
| Expires | September 30, 2026 |
| BBL | — |
| BIN | — |
Property owner
Not Applicable
Jenny Zhan
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