Brooklyn · NY · 11219
What is permit #B00940863-S6 at 5423 15 Avenue, Brooklyn, NY?
5423 15 Avenue in Brooklyn, NY has a new construction permit (#B00940863-S6) filed Wednesday, May 20, 2026 by Alef Construction Inc. Status: issued.
Underpinning work filed in conjunction with nb application no. # for new 6-storyconcrete residential building. work to include underpinning of adjacentneighbor buildings at 5419 15 avenue & 1515 55 street.
4 other permits at 5423 15 Avenue. Electrical, plumbing and HVAC on one property often share a GC, so follow the paper trail.
Existing two-family dwelling to be renovated. removal of partitions, installation of partitions. install new wall and floor finished and rear enlargement with rear deck. amended ce…
Add bedrooms to the basement floor which are accessory to the dwelling unit on floor 001 above. Alt CO to show new description of use.