Alteration filingAug 20
DOB filing B01370508-P2
Alteration filing at 420 Carroll Street
Under review21 proposed stories
Open filing Building record · BIN 3429585
424 Carroll Street
424 Carroll Street, Brooklyn, NY 11215
A consolidated, filing-by-filing view of DOB records matched to this building identifier. The current snapshot links 4 independently sourced records, including 4 that are not recorded as completed, closed or withdrawn.
A building-level summary of matched filings, active-status records and published identifiers.
Matched filings4
Open or active-status records4
First included filingOct 29, 2021
Latest recorded changeAug 20, 2026
The lot
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 any single filing.
What is recorded here
Multiple filings, one stable building identifier.
New York City's Building Identification Number helps connect filings that may use different application numbers or describe different scopes of work. The records below are grouped because they publish BIN 3429585. They should not be read as a single construction project unless the underlying filings say so.
The matched set includes 2 alteration filing, 2 new building. Its latest status categories are 2 under review, 2 approved. Each filing page preserves its own status, dates, scope and source identifier.
- First included filing
- Oct 29, 2021
- Latest recorded change
- Aug 20, 2026
- Highest proposed story count
- 21 stories
- Highest proposed unit count
- 360 dwelling units
Highest recorded values may come from different filings and must not be combined into one proposed project. Open the individual filings below for their exact scope. Values outside the publication's conservative data-quality bounds are withheld pending source review.
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Recorded history
What has happened at this address?
Every dated event the city has published for this building, from all 4 matched filings, in the order it was recorded. A date marks what entered the public record, not what happened on site.
- New building filed01
Development hub. this job to be filed with the development hub. initial consultation occurred on september 27,2021. erect 21 story (16 stories in east tower , 21 stories in west tower) mixed use new building. Filing B00614338-I1.
- New building approved02
Filing B00614338-I1 reached an approved status.
- Permit recorded for new building03
DOB lists a first permit date for B00614338-I1. That is not by itself confirmation of activity on site.
- New building filed04
Development hub. this job to be filed with the development hub. initial consultation occurred on september 27,2021. erect 21 story (16 stories in east tower , 21 stories in west tower) mixed use new building. Filing B00614338-C3.
- New building approved05
Filing B00614338-C3 reached an approved status.
- New building now approved06
The latest status recorded for B00614338-C3 is “Approved.”
- New building now approved07
The latest status recorded for B00614338-I1 is “Permit Entire.”
- Alteration filed08
West retail - tenant d - mechanical work as per plans. no change in use, egress or occupancy. Filing B01370508-P2.
- Alteration filed09
West retail - tenant d - filing for plumbing work as per plans. no change in use, egress, or occupancy. Filing B01370508-P3.
- Alteration now under review010
The latest status recorded for B01370508-P2 is “Prof Cert QA Review.”
- Alteration now under review011
The latest status recorded for B01370508-P3 is “Prof Cert QA Review.”