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NYC DOB record · B00458348-P2

421 Blake Avenue

421 Blake Avenue, Brooklyn, NY 11212

Alteration filing in Brownsville, 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 5, 2026 · Verify the source row

Open full map
421 Blake 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 B00458348-P2 as a alteration filing at 421 Blake Avenue, Brooklyn, NY 11212. Its latest published status category is Approved, dated Sep 4, 2026. The filing records 3 proposed stories and 18 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
Sep 4, 2026
Proposed scale
3 proposed stories and 18 proposed dwelling units
Complete building dossierView all 6 filings associated with BIN 3328027Applicant of recordSee the 7 filings that name Dewberry Engineers INC.
FiledAug 10, 2026
Current recordApproved
Proposed scale3 stories
Recorded cost$100,000

What the filing says

A public-record reading of the proposed work.

Nycha boiler-structural related work in the cellar for central boiler plant and domestic hotwater system replacement

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 14-story elevator apartment building built in 1953, with 628 homes, on a 337,075 sq ft lot.

Built
1953
Floors
14
Residential units
628
Building type
Elevator apartment building
Land use
Elevator apartments
Zoning district
R6
Lot area
337,075 sq ft
Building area
497,397 sq ft

Lot facts come from NYC Department of City Planning, Primary Land Use Tax Lot Output (PLUTO) (64uk-42ks), accessed Sep 5, 2026. They describe the tax lot, not this filing.

Violation record

Are there open violations here?

No open violations are recorded for this building.

A violation is a notice the Department of Buildings recorded against the building. It is not a judgment, and many concern paperwork rather than safety. Open means the agency has not recorded a resolution, which is not the same as the problem still existing. From NYC Department of Buildings, DOB Violations (3h2n-5cm9), accessed Sep 5, 2026.

Recorded timeline

Dates published by the Department of Buildings.

  1. Application filed

    DOB received filing B00458348-P2.

    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.

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
B00458348-P2
BBL
3037600001
Review type
Standard Plan Examination
Existing stories
3
Proposed stories
3
Existing dwelling units
18
Proposed dwelling units
18
Structural work

Nearby records

Other verified filings in this part of the city.