What was permitted
Homeowners on the Upper East Side can see the significant investment involved in transforming multi-family dwellings into a single-family home. This project includes substantial structural changes like vertical and horizontal enlargements.
This extensive general construction project was permitted on April 1, 2026, with an estimated cost of $1,350,000. B.O.S.S. ASSOCIATES, INC. is listed as the general contractor for this ambitious renovation.
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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 | 285507366 |
|---|---|
| Work permit # | M01041376-I1-GC |
| Job filing number | — |
| Work type | General Construction |
| Status | Permit Issued |
| Job description | Convert two existing multi-family buildings into a single family residence including vertical enlargement at 4th floor and horizontal enlargement at 1st floor/basement. |
| Floor / unit | Cellar, Basement, Floor Number(s) 1, Floor Number(s) 2, Floor Number(s) 3, Floor Number(s) 4 |
| Estimated cost | $1,350,000 |
| Approved | October 21, 2025 |
| Issued | April 1, 2026 |
| Expires | August 7, 2026 |
| BBL | — |
| BIN | — |
Property owner
Happy Hk Construction INC
Yosi Cohen
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