New buildingAug 25
DOB filing B00916023-Z1
New building at 221 Frost Street
Recorded as completed5 proposed stories
Open filing Building record · BIN 3429674
221 Frost Street
221 Frost Street, Brooklyn, NY 11211
A consolidated, filing-by-filing view of DOB records matched to this building identifier. The current snapshot links 3 independently sourced records, including 1 that are not recorded as completed, closed or withdrawn.
A building-level summary of matched filings, active-status records and published identifiers.
Matched filings3
Open or active-status records1
First included filingNov 3, 2023
Latest recorded changeAug 25, 2026
The lot
What is already here?
The lot holds a 5-story condominium built in 2025, with 10 homes, on a 3,750 sq ft lot.
- Built
- 2025
- Floors
- 5
- Residential units
- 10
- Building type
- Condominium
- Land use
- Walk-up apartments
- Zoning district
- R6B
- Lot area
- 3,750 sq ft
- Building area
- 9,612 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 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 3429674. They should not be read as a single construction project unless the underlying filings say so.
The matched set includes 3 new building. Its latest status categories are 2 recorded as completed, 1 approved. Each filing page preserves its own status, dates, scope and source identifier.
- First included filing
- Nov 3, 2023
- Latest recorded change
- Aug 25, 2026
- Highest proposed story count
- 5 stories
- Highest proposed unit count
- 10 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 3 matched filings, in the order it was recorded. A date marks what entered the public record, not what happened on site.
- New building filed01
New residential 5-story building with cellar. 10 dwelling units. Filing B00916023-I1.
- New building filed02
Sprinkler system for 5-story New Building. Filing B00916023-S4.
- New building filed03
Plumbing work including domestic, sanitary & gas service for new 5-story & cellar residential building. Filing B00916023-Z1.
- New building approved04
Filing B00916023-Z1 reached an approved status.
- New building approved05
Filing B00916023-S4 reached an approved status.
- New building approved06
Filing B00916023-I1 reached an approved status.
- Permit recorded for new building07
DOB lists a first permit date for B00916023-I1. That is not by itself confirmation of activity on site.
- Permit recorded for new building08
DOB lists a first permit date for B00916023-Z1. That is not by itself confirmation of activity on site.
- Permit recorded for new building09
DOB lists a first permit date for B00916023-S4. That is not by itself confirmation of activity on site.
- New building signed off010
DOB recorded a sign-off for B00916023-S4.
- New building now completed011
The latest status recorded for B00916023-S4 is “LOC Issued.”
- New building signed off012
DOB recorded a sign-off for B00916023-Z1.
- New building now completed013
The latest status recorded for B00916023-Z1 is “LOC Issued.”
- New building now approved014
The latest status recorded for B00916023-I1 is “Permit Entire.”