Permit · B01320919-I1NYC DOB NOWNew Construction

421 Grand Avenue

Brooklyn · NY · 11238

What is permit #B01320919-I1 at 421 Grand Avenue, Brooklyn, NY?

421 Grand Avenue in Brooklyn, NY has a new construction permit (#B01320919-I1) filed Thursday, June 18, 2026 by Acer Construction Inc, valued at $750,020. Status: issued.

Issued

Thursday, June 18, 2026

Filed value

$750,020

Contractor

Acer Construction Inc

County

Kings County

Status

issued

§Scope

Work description.

Application is filed for a conversion from 17 furnished rooms and 4 kitchenettes to 5 family. obtain new certificate of occupancy.

§Where

Plotted on the map.

§Same address

Other permits at this property.

3 other permits at 421 Grand Avenue. Electrical, plumbing and HVAC on one property often share a GC, so follow the paper trail.

Full permit history at this address →

#B01417913-I1Pool & SpaJun 22, 2026· Acer Construction Inc· $20,000
#B01338003-I1RenovationMar 27, 2026· Winway Development Llc· $278,240
#B01338003-I1RenovationMar 26, 2026· Winway Development Llc· $278,240

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№ 001

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2dJUL 14

№ 002

Brooklyn, NY

421 Grand Avenue

Work description.

Plotted on the map.

Other permits at this property.

More new construction permits in Brooklyn.

Product

All states on record