Structural Facade Alterations at 523 East 70 Street, Manhattan
523 EAST 70 STREET, MANHATTAN, 10021 · Upper East Side-Lenox Hill-Roosevelt Island
Estimated Project Cost
$0
Structural
Issued
March 31, 2026
Expires
August 15, 2026
License
General Contractor
About This Project
Homeowners on the Upper East Side may be interested in the significant costs associated with facade alterations, particularly those related to Local Law 11 (LL11) work. This permit covers structural changes to a building's exterior.
This structural permit for facade alterations was issued on March 31, 2026, with a substantial estimated cost of $4,495,218.9. THE GRENADIER CORPORATION (GC) is the contractor undertaking this project.
What This Means For You
Major facade alterations for LL11 compliance on the Upper East Side, Manhattan, came with a significant price tag of nearly $4.5 million.
The Business That Did This Work
THE GRENADIER CORPORATION
General Contractor · License #004077
1590 EAST 233RD STREET
4 permits filed · 3 neighborhoods
Permit Details
| Tracking Number | 618468654 |
| Work Permit # | M01144549-I1-ST |
| Job Filing Number | — |
| Work Type | Structural |
| Status | Permit Issued |
| Job Description | Annex Fac: Facade alterations to accommodate LL11 work as per plans. No change to use, egress or occupancy. |
| Floor / Unit | Facade |
| Estimated Cost | $4,495,219 |
| Approved | January 24, 2025 |
| Issued | March 31, 2026 |
| Expires | August 15, 2026 |
| BBL | — |
| BIN | — |
Property Owner
NEW YORK PRESBYTERIAN HOSPITAL
BENEDICT CIFERRI
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