Sprinkler Modifications at 350 Fifth Avenue, Manhattan
350 FIFTH AVENUE, MANHATTAN, 10118 · Midtown South-Flatiron-Union Square
Estimated Project Cost
$0
Sprinklers
Issued
April 10, 2026
Expires
May 15, 2026
License
Fire Suppression Contractor
About This Project
This permit outlines sprinkler modifications on the 39th floor of the building at 350 Fifth Avenue in Manhattan's Midtown South-Flatiron-Union Square area. Understanding these costs can help homeowners budget for similar building system updates.
The permit was issued on April 10, 2026, with an estimated cost of $30,000. DENKO MECHANICAL INC is the contractor, and the work does not alter the building's use, egress, or occupancy.
What This Means For You
A $30,000 sprinkler modification project on the 39th floor of 350 Fifth Avenue provides a cost indicator for commercial building system upgrades in Midtown South.
The Business That Did This Work
DENKO MECHANICAL INC
Fire Suppression Contractor · License #000130
461 WEST 261 STREET
9 permits filed · 4 neighborhoods
Permit Details
| Tracking Number | 654211863 |
| Work Permit # | M01357828-I1-EW-SP |
| Job Filing Number | — |
| Work Type | Sprinklers |
| Status | Permit Issued |
| Job Description | Sprinkler modifications taking place on the 39th Floor as per plans filed herewith. No change in Use, Egress or Occupancy. |
| Floor / Unit | Floor Number(s) 039 through 039 |
| Estimated Cost | $30,000 |
| Approved | March 9, 2026 |
| Issued | April 10, 2026 |
| Expires | May 15, 2026 |
| BBL | — |
| BIN | — |
Property Owner
Not Applicable
Andrew Woolf
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