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NYC DOB record · B00447535-I1

91 East 21 Street

91 East 21 Street, Brooklyn, NY 11226

Alteration filing in Flatbush, Brooklyn. The latest DOB status is permit entire.

DOB has issued the permit covering the full scope of this filing, so the work is cleared to proceed. What every status means

ApprovedAlteration filing

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

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NYC DOB RECORD · B00447535-I1

91 East 21 Street

Brooklyn, NY 11226

Alteration filing · status dated Feb 8, 2021

Current record
Approved
Proposed scale
4 stories
Dwelling units
16
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 B00447535-I1 as a alteration filing at 91 East 21 Street, Brooklyn, NY 11226. Its latest published status category is Approved, dated Feb 8, 2021. The filing records 4 proposed stories and 16 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
Feb 8, 2021
Proposed scale
4 proposed stories and 16 proposed dwelling units
Applicant of recordSee the 369 filings that name Basic Groups Corp
FiledJan 11, 2021
Current recordApproved
Proposed scale4 stories
Recorded cost$21,400

What the filing says

A public-record reading of the proposed work.

Interior renovation of exist apt#1b on 1st floor. partition work as per plans, plumbing work to be filed under separate application. no change in use, egress and occupancy.

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 1916, with 16 homes, on a 7,500 sq ft lot.

Built
1916
Floors
4
Residential units
16
Building type
Walk-up apartment building
Land use
Walk-up apartments
Zoning district
R7A
Lot area
7,500 sq ft
Building area
19,500 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 B00447535-I1.

    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 “Permit Entire.”

    04

For scale: half of DOB filings are permitted within 18 days of being filed and a quarter take longer than 4 months, measured across 50,115 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
B00447535-I1
BIN
3116599
BBL
3050820091
Review type
Professional Certification
Existing stories
4
Proposed stories
4
Existing dwelling units
16
Proposed dwelling units
16
General construction

Nearby records

Other verified filings in this part of the city.