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NYC DOB record · B00584279-S3

731 Liberty Avenue

731 Liberty Avenue, Brooklyn, NY 11208

New building filing in Cypress Hills, Brooklyn. The latest DOB status is loc issued.

DOB has issued a Letter of Completion, which records that the work in this filing is finished. What every status means

Recorded as completedNew building

NYC Department of Buildings · w9ak-ipjd · accessed Sep 14, 2026 · Verify the source row

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NYC DOB RECORD · B00584279-S3

731 Liberty Avenue

Brooklyn, NY 11208

New building · status dated Mar 16, 2023

Current record
Recorded as completed
Proposed scale
4 stories
Dwelling units
10
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 B00584279-S3 as a new building at 731 Liberty Avenue, Brooklyn, NY 11208. Its latest published status category is Recorded as completed, dated Mar 16, 2023. The filing records 4 proposed stories and 10 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
New building
Latest status
Recorded as completed
Latest status date
Mar 16, 2023
Proposed scale
4 proposed stories and 10 proposed dwelling units
The building, not the filingEvery filing at BIN 3430036, with the parcel and violation recordApplicant of recordSee the 576 filings that name A&d Engineering, PLLC
FiledDec 9, 2021
Current recordRecorded as completed
Proposed scale4 stories
Recorded cost$5,000

What the filing says

A public-record reading of the proposed work.

SPRINKLER APPLICATION IN CONJUNCTION WITH NEW BUILDING JOB NO# B00584279-i1

Street Futures classifies this record as a new building 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 4-story walk-up apartment building built in 2022, with 10 homes, on a 2,500 sq ft lot.

Built
2022
Last altered
2022
Floors
4
Residential units
10
Building type
Walk-up apartment building
Land use
Mixed residential and commercial
Zoning district
R6A
Lot area
2,500 sq ft
Building area
7,469 sq ft

Lot facts come from NYC Department of City Planning, Primary Land Use Tax Lot Output (PLUTO) (64uk-42ks), accessed Sep 15, 2026. They describe the tax lot, not this filing.

Recorded timeline

Dates published by the Department of Buildings.

  1. Application filed

    DOB received filing B00584279-S3.

    01
  2. Application approved

    The application reached an approved status in the DOB record.

    02
  3. First permit date recorded

    DOB lists a first permit date. This does not by itself confirm current construction activity.

    03
  4. Current status updated

    The latest recorded filing status is “LOC Issued.”

    04
  5. Sign-off date recorded

    DOB lists a sign-off date for this filing.

    05

For scale: half of DOB filings are permitted within 20 days of being filed and a quarter take longer than 4 months, measured across 66,798 filings that carry both dates. How long a permit takes, by work type and borough

Scope and identifiers

The details used to match this filing.

Where a field reads “empty in the source”, the city published this filing without that value. It is not an omission on our side, and nothing here is inferred to fill a gap.

DOB filing number
B00584279-S3
BBL
3039710050
Review type
Standard Plan Examination
Existing stories
Empty in the source
Proposed stories
4
Existing dwelling units
Empty in the source
Proposed dwelling units
10
sprinkler

Nearby records

Other verified filings in this part of the city.