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257 Alexander Avenue, Bronx, NY — HVAC permit (#X01358989-S1) · DigPermit

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Permit · X01358989-S1NYC DOB NOWHVAC

257 Alexander Avenue

Bronx · NY · 10454

What is permit #X01358989-S1 at 257 Alexander Avenue, Bronx, NY?

257 Alexander Avenue in Bronx, NY has a hvac permit (#X01358989-S1) filed Friday, April 24, 2026 by Sienia Construction Inc, valued at $657,000. Status: issued.

Issued

Friday, April 24, 2026

Filed value

$657,000

Contractor

Sienia Construction Inc

County

Bronx County

Status

issued

§Scope

Work 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.

§Details on file

What the city recorded.

Neighborhood

Mott Haven-Port Morris

Work type

Mechanical Systems

Filing reason

Initial Permit

§Where

Plotted on the map.

§Same address

Other permits at this property.

2 other permits at 257 Alexander Avenue. Electrical, plumbing and HVAC on one property often share a GC, so follow the paper trail.

Full permit history at this address →

#X01358989-I1PlumbingApr 24, 2026· Sienia Construction Inc· $1,072,500
#X01358989-S2PlumbingApr 23, 2026· Inpro Plumbing Corp· $157,000

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