Permit · B01388787-I1NYC DOB NOWHVAC

139 Flatbush Avenue

Brooklyn · NY · 11217

What is permit #B01388787-I1 at 139 Flatbush Avenue, Brooklyn, NY?

139 Flatbush Avenue in Brooklyn, NY has a hvac permit (#B01388787-I1) filed Thursday, May 7, 2026 by Steadfast Development And, valued at $100,000. Status: issued.

Issued

Thursday, May 7, 2026

Filed value

$100,000

Contractor

Steadfast Development And

County

Kings County

Status

issued

§Scope

Work description.

Removal of mechanical ducts and associated piping.

§Details on file

What the city recorded.

Neighborhood

Fort Greene

Work type

Mechanical Systems

Filing reason

Initial Permit

§Where

Plotted on the map.

§Behind the paywall

Owner contacts & project team.

§Same address

Other permits at this property.

10 other permits at 139 Flatbush Avenue. Electrical, plumbing and HVAC on one property often share a GC, so follow the paper trail.

Full permit history at this address →

#B01395037-I1Pool & SpaJun 26, 2026· Demartino Constr. Co. Inc· $527,723
#B01395037-S1HVACJun 25, 2026· Demartino Constr. Co. Inc· $66,863
#B01395037-S3Pool & SpaJun 25, 2026· A & F Fire Protection Co· $51,673
#B01352623-I1OtherJun 4, 2026· Universal Build Supp Llc· $10,000

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