NYC DOB record · B00284147-I1

821A Union Street

821A Union Street, Brooklyn, NY 11215

Alteration filing in Park Slope, 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. What every status means

ApprovedAlteration filing

NYC Department of Buildings · w9ak-ipjd · accessed Sep 12, 2026 · Verify the source row

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NYC DOB RECORD · B00284147-I1

821A Union Street

Brooklyn, NY 11215

Alteration filing · status dated Dec 27, 2020

Current record
Approved
Proposed scale
4 stories
Dwelling units
4
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 B00284147-I1 as a alteration filing at 821A Union Street, Brooklyn, NY 11215. Its latest published status category is Approved, dated Dec 27, 2020. The filing records 4 proposed stories and 4 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
Dec 27, 2020
Proposed scale
4 proposed stories and 4 proposed dwelling units
The building, not the filingwhat it sold for, apartment sizes, the owner of record and every filing at BIN 3019884Applicant of recordSee the 44 filings that name A Degree Of Freedom Structural Engi
FiledFeb 11, 2020
Current recordApproved
Proposed scale4 stories
Recorded cost$16,000

What the filing says

A public-record reading of the proposed work.

EXTERIOR RENOVATION OF EXISTING APARTMENT ON THE 4TH FLOOR AND PENTHOUSE. structural WORK to create 2 new skylight openings ONLY. NO CHANGE OF USE, OCCUPANCY OR EGRESS

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 4-story walk-up apartment building built in 1920, with 4 homes, on a 2,025 sq ft lot.

Built
1920
Floors
4
Residential units
4
Building type
Walk-up apartment building
Land use
Walk-up apartments
Zoning district
R6A
Lot area
2,025 sq ft
Building area
5,940 sq ft

Lot facts come from NYC Department of City Planning, Primary Land Use Tax Lot Output (PLUTO) (64uk-42ks), accessed Sep 14, 2026. They describe the tax lot, not this filing.

Recorded timeline

Dates published by the Department of Buildings.

  1. Application filed

    DOB received filing B00284147-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

For scale: half of DOB filings are permitted within 21 days of being filed and a quarter take longer than 4 months, measured across 76,126 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
B00284147-I1
BBL
3009540061
Review type
Standard Plan Examination
Existing stories
4
Proposed stories
4
Existing dwelling units
4
Proposed dwelling units
4
Structural work