newyorkdailyStreet Futures
SearchExplore New York

NYC DOB record · B01438371-I1

851 Willoughby Avenue

851 Willoughby Avenue, Brooklyn, NY 11221

Alteration filing in Bedford-Stuyvesant (East), Brooklyn. The latest DOB status is approved.

A plan examiner has approved the application. A permit still has to be issued before work can begin.

ApprovedAlteration filing

NYC Department of Buildings · w9ak-ipjd · accessed Sep 1, 2026 · Verify the source row

Open full map
851 Willoughby Avenue record graphic showing the DOB filing status and stated proposal scale
Filing data portrait

A page-specific reading of the filing status, location and stated scale. Values are drawn from the cited DOB record.

Address record at a glance

What is filed at this address?

NYC DOB lists filing B01438371-I1 as a alteration filing at 851 Willoughby Avenue, Brooklyn, NY 11221. Its latest published status category is Approved, dated Aug 24, 2026. The filing records 3 proposed stories and 2 proposed dwelling units.

A filing or approval does not by itself confirm that work is underway. Proposed details may change in later DOB records.
Filing type
Alteration filing
Latest status
Approved
Latest status date
Aug 24, 2026
Proposed scale
3 proposed stories and 2 proposed dwelling units
Applicant of recordSee the 5 filings that name Ag Engineering PLLC
FiledJul 31, 2026
Current recordApproved
Proposed scale3 stories
Recorded cost$7,500

What the filing says

A public-record reading of the proposed work.

Proposing to repair the rear-yard fire escape to correct the conditions cited in vacate order complaint 3A37714. No change in use, egress, or occupancy is proposed.

Street Futures classifies this record as a alteration filing based on the filing type and work flags published by the Department of Buildings. This classification helps organize the map; it does not add scope that is absent from the DOB record.

The lot this filing sits on

What is already here?

The lot holds a 3-story two-family home built in 1910, on a 1,206 sq ft lot.

Built
1910
Floors
3
Residential units
2
Building type
Two-family home
Land use
One and two family homes
Zoning district
C4-4L
Lot area
1,206 sq ft
Building area
1,917 sq ft

Lot facts come from NYC Department of City Planning, Primary Land Use Tax Lot Output (PLUTO) (64uk-42ks), accessed Sep 1, 2026. They describe the tax lot, not this filing.

Recorded timeline

Dates published by the Department of Buildings.

  1. Application filed

    DOB received filing B01438371-I1.

    01
  2. Application approved

    The application reached an approved status in the DOB record.

    02
  3. Current status updated

    The latest recorded filing status is “Approved.”

    03

Scope and identifiers

The details used to match this filing.

DOB filing number
B01438371-I1
BIN
3042991
BBL
3015900028
Review type
Standard Plan Examination
Existing stories
3
Proposed stories
3
Existing dwelling units
2
Proposed dwelling units
2
General constructionStructural work

Nearby records

Other verified filings in this part of the city.