What was permitted
A significant mechanical systems upgrade is underway at 1100 Park Avenue in Manhattan's Upper East Side-Carnegie Hill neighborhood. This project involves modifying and installing new air conditioning units, ductwork, and associated components to improve the building's climate control systems.
The permit for this extensive work was issued on October 16, 2026, with an estimated project cost of $200,000. HAMILTON AIR COMPANY, INC (GC) is the contractor handling this mechanical upgrade, which includes creating new openings for AC sleeves and adjusting existing window sills.
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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 | 780296151 |
|---|---|
| Work permit # | M01442426-I1-MS |
| Job filing number | — |
| Work type | Mechanical Systems |
| Status | Permit Issued |
| Job description | MODIFICATION & INSTALLATION OF NEW AC UNITS, DUCTWORK & ASSOCIATED COMPONENTS. MINOR CONSTRUCTION WORK INCLUDING MODIFICATION & CREATION OF NEW EXT. OPENING FOR NEW THRU-WALL AC SLEEVES & RAISING EXIST. WINDOW SILLS. NO CHANGE TO USE, EGRESS OR OCCUPANCY. |
| Floor / unit | Floor Number(s) 02 through 02 |
| Estimated cost | $200,000 |
| Approved | August 27, 2026 |
| Issued | October 16, 2026 |
| Expires | February 1, 2027 |
| BBL | — |
| BIN | — |
Property owner
Pr
Rob Schenk
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