What was permitted
For those in the Midtown-Times Square area, a substantial mechanical systems project is underway at 520 Madison Avenue. This involves the installation of water-cooled packaged air conditioning units, fans, and associated ductwork and piping.
This permit was issued on June 29, 2026, with an estimated project cost of $375,000. BUILD NYC GROUP CORP (GC) is the contractor for this mechanical upgrade.
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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 | 803927928 |
|---|---|
| Work permit # | M01379557-S1-MS |
| Job filing number | — |
| Work type | Mechanical Systems |
| Status | Permit Issued |
| Job description | Installation of water cooled packaged air conditioning units, fan and related ductwork/piping as per plans filed herewith. No change in use, egress or occupancy under this application. |
| Floor / unit | Cellar, Floor Number(s) 001 through 001, Mezzanine 001 through 001 |
| Estimated cost | $375,000 |
| Approved | June 26, 2026 |
| Issued | June 29, 2026 |
| Expires | July 17, 2026 |
| BBL | — |
| BIN | — |
Property owner
RCPI Landmarks LLC
Michael Dumelle
Related searches
mechanical systemsair conditioningMidtown-Times SquareManhattanNew York Citybuilding permit$300k-$500k