What was permitted
A significant mechanical systems upgrade is underway at 257 Alexander Avenue in the Mott Haven-Port Morris neighborhood of the Bronx. This project involves the installation of an HVAC VRF heat pump system and a ventilation system throughout the cellar and up to the 4th floor of occupied areas.
This permit was issued on April 24, 2026, with an estimated project cost of $657,000. SIENIA CONSTRUCTION INC is listed as the General Contractor for this extensive installation.
Plan a similar project
Want work like this done at your place?
Tell us what you have in mind. We scope it, price it against work like this in Bronx, and lines up the right contractor. You approve; we handle the back-and-forth.
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 | 454749668 |
|---|---|
| Work permit # | X01358989-S1-MS |
| Job filing number | — |
| Work type | Mechanical Systems |
| Status | Permit Issued |
| Job description | HVAC VRF Heat pump system and ventilation system installation at cellar through 4th floor occupied areas. No change in use, egress & occupancy with this application. |
| Floor / unit | Cellar, Floor Number(s) 1 through 4, Roof |
| Estimated cost | $657,000 |
| Approved | April 9, 2026 |
| Issued | April 24, 2026 |
| Expires | July 23, 2026 |
| BBL | — |
| BIN | — |
Property owner
Nypd
Shannon Stapleton
Related searches