Major Mechanical Modifications at 390 Madison Avenue, Manhattan
390 MADISON AVENUE, Manhattan, 10017 · Midtown-Times Square
What was permitted
Significant mechanical modifications are taking place on the 16th floor of 390 Madison Avenue in Manhattan, as per the filed plans. These updates are crucial for the building's infrastructure and operational efficiency.
This permit was issued on July 8, 2026, with a substantial estimated project cost of $2,200,044. STRUCTURE TONE, LLC is the general contractor overseeing these extensive mechanical system upgrades.
Large-scale mechanical system projects in Midtown-Times Square, like the one at 390 Madison Avenue, can reach costs exceeding $2 million.
What it cost
Issued
July 8, 2026
Expires
December 31, 2026
License
General Contractor
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Filed by STRUCTURE TONE, LLC · 221 permits across 16 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 | 974046570 |
| Work Permit # | M01417593-S1-MS |
| Job Filing Number | — |
| Work Type | Mechanical Systems |
| Status | Permit Issued |
| Job Description | Mechanical modifications taking place on the 16 floor as per plans filed herewith. No change in use, egress or occupancy |
| Floor / Unit | Floor Number(s) 16 through 16 |
| Estimated Cost | $2,200,044 |
| Approved | July 7, 2026 |
| Issued | July 8, 2026 |
| Expires | December 31, 2026 |
| BBL | — |
| BIN | — |
Property Owner
NYS COMMON RETIREMENT FUND
William Gill