Mechanical Systems at 20 West 74 Street, Manhattan
20 WEST 74 STREET, Manhattan, 10023 · Upper West Side-Lincoln Square
What was permitted
For those in the Upper West Side-Lincoln Square neighborhood, this permit details mechanical systems work, specifically restroom exhaust, at 20 West 74 Street. This is part of larger interior renovations on the 4th and 5th floors.
The permit was issued on June 29, 2026, with an estimated project cost of $27,000 for the mechanical systems. SENTINEL BUILDERS, LLC is the general contractor overseeing this aspect of the renovation.
Mechanical systems and restroom exhaust work on the 4th and 5th floors in the Upper West Side had an estimated project cost of $27,000.
What it cost
Issued
June 29, 2026
Expires
July 23, 2026
License
General Contractor
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Filed by SENTINEL BUILDERS, LLC · 6 permits across 4 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 | 448626318 |
| Work Permit # | M01397522-S3-MS |
| Job Filing Number | — |
| Work Type | Mechanical Systems |
| Status | Permit Issued |
| Job Description | The William Alanson White Institute limited Mechanical systems, restroom exhaust work in conjunction with interior general construction renovations at 4th & 5th floors as per plan filed herewith. No change to use, egress or occupancy under this app. |
| Floor / Unit | Floor Number(s) 4 through 5, Roof |
| Estimated Cost | $27,000 |
| Approved | June 18, 2026 |
| Issued | June 29, 2026 |
| Expires | July 23, 2026 |
| BBL | — |
| BIN | — |
Property Owner
THE WIWILLIAM ALANSON WHITE INSTITU
Richard Herman