Major Structural Renovation at 1009 Fifth Avenue, Manhattan
1009 FIFTH AVENUE, Manhattan, 10028 · Upper East Side-Carnegie Hill
What was permitted
Residents on the Upper East Side-Carnegie Hill may observe significant structural changes as a 7-story, 3-family mixed-use building is being converted into a single-family home. This involves extensive work like elevator upgrades and floor modifications.
This major structural undertaking, with an estimated cost of $200,001.64, was permitted on July 13, 2026. COW BAY SPRINKLER CORP (GC) is the contractor responsible for this complex conversion, which includes adding convenience stairs and new spiral staircases.
A $200,001.64 structural renovation permit on Fifth Avenue signals a major transformation of a multi-family building into a luxury single-family residence.
What it cost
Issued
July 13, 2026
Expires
April 30, 2027
License
General Contractor
Price your own project
See what a project like this costs near you
We'll compare your scope against real permits and licensed contractors in the area.
Start my estimate →Free · takes 60 seconds · no account needed
Filed by COW BAY SPRINKLER CORP · 11 permits across 4 neighborhoods
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 | 925923793 |
| Work Permit # | M01254461-S2-ST |
| Job Filing Number | — |
| Work Type | Structural |
| Status | Permit Issued |
| Job Description | Structural Scope of Work : Conversion of a 7-story, 3-family mixed-use building to a single-family home, including elevator upgrades, convenience stair extensions, floor infills, and new spiral staircase installation. |
| Floor / Unit | Floor Number(s)-3-SO-1487-M01254461-I1, Floor Number(s)-5-SO-6843-M01254461-I1, Floor Number(s)-7-SO-6056-M01254461-I1, Floor Number(s)-4-SO-4122-M01254461-I1, Floor Number(s)-6-SO-3399-M01254461-I1, |
| Estimated Cost | $200,002 |
| Approved | September 9, 2025 |
| Issued | July 13, 2026 |
| Expires | April 30, 2027 |
| BBL | — |
| BIN | — |
Property Owner
SEBASTIAN CAPITAL INC
James Colletti