NYC DOB record · B01370508-P3

420 Carroll Street

420 Carroll Street, Brooklyn, NY 11215

Alteration filing in Carroll Gardens-Cobble Hill-Gowanus-Red Hook, Brooklyn. The latest DOB status is prof cert qa review.

The filing was professionally certified by its architect or engineer, and DOB is auditing it rather than reviewing it in full.

Under reviewAlteration filing

NYC Department of Buildings · w9ak-ipjd · accessed Aug 24, 2026 · Verify the source row

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420 Carroll Street 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 B01370508-P3 as a alteration filing at 420 Carroll Street, Brooklyn, NY 11215. Its latest published status category is Under review, dated Aug 20, 2026. The filing records 21 proposed stories and 360 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
Under review
Latest status date
Aug 20, 2026
Proposed scale
21 proposed stories and 360 proposed dwelling units
Complete building dossierView all 4 filings associated with BIN 3429585
FiledAug 19, 2026
Current recordUnder review
Proposed scale21 stories
Recorded cost$140,000

What the filing says

A public-record reading of the proposed work.

West retail - tenant d - filing for plumbing work as per plans. no change in use, egress, or 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 21-story elevator apartment building built in 2022, with 360 homes, on a 65,376 sq ft lot.

Built
2022
Last altered
2022
Floors
21
Residential units
360
Building type
Elevator apartment building
Land use
Mixed residential and commercial
Zoning district
M1-4/R7-2
Lot area
65,376 sq ft
Building area
380,071 sq ft

Lot facts come from NYC Department of City Planning, Primary Land Use Tax Lot Output (PLUTO) (64uk-42ks), accessed Sep 2, 2026. They describe the tax lot, not this filing.

Recorded timeline

Dates published by the Department of Buildings.

  1. Application filed

    DOB received filing B01370508-P3.

    01
  2. Current status updated

    The latest recorded filing status is “Prof Cert QA Review.”

    02

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
B01370508-P3
BBL
3004530001
Review type
Professional Certification
Existing stories
21
Proposed stories
21
Existing dwelling units
360
Proposed dwelling units
360