Mechanical Systems Work at 663 Fifth Avenue, Manhattan
663 FIFTH AVENUE, MANHATTAN, 10022 · Midtown-Times Square
What was permitted
This permit covers modifications to ductwork and supply diffusers, along with the demolition and addition of air conditioning units at 663 Fifth Avenue in Midtown-Times Square.
The permit was issued on April 13, 2026, with an estimated cost of $4,874.07. MICHILLI INC (GC) is the contractor for this project.
The relatively low cost of $4,874.07 for mechanical systems work at 663 Fifth Avenue offers a cost benchmark for similar projects in Midtown-Times Square.
What it cost
Issued
April 13, 2026
Expires
July 1, 2026
License
General Contractor
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Filed by MICHILLI INC · 26 permits across 6 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 | 128180160 |
| Work Permit # | M01355636-I1-MS |
| Job Filing Number | — |
| Work Type | Mechanical Systems |
| Status | Permit Issued |
| Job Description | Modifying ductwork & supply diffuser to accommodate new partition layout, Demolition of existing AC systems & ductwork .Adding air conditioning units to the 2nd floor to supplement the removed systems. Reconnecting to existing ductwork |
| Floor / Unit | Cellar, Floor Number(s) 001 through 003 |
| Estimated Cost | $4,874 |
| Approved | March 12, 2026 |
| Issued | April 13, 2026 |
| Expires | July 1, 2026 |
| BBL | — |
| BIN | — |
Property Owner
Not Applicable
Federico Baldeschi