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Building record · BIN 3017421

245 21 Street

245 21 Street, Brooklyn, NY 11215

A consolidated, filing-by-filing view of DOB records matched to this building identifier. The current snapshot links 7 independently sourced records, including 6 that are not recorded as completed, closed or withdrawn.

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245 21 Street building dossier graphic showing matched DOB filings and current record counts
Building data portrait

A building-level summary of matched filings, active-status records and published identifiers.

Matched filings7
Open or active-status records6
First included filingOct 20, 2021
Latest recorded changeJun 5, 2026

The lot

What is already here?

The lot holds a walk-up apartment building built in 2025, with 4 homes, on a 1,703 sq ft lot.

Built
2025
Last altered
2025
Residential units
4
Building type
Walk-up apartment building
Land use
Walk-up apartments
Zoning district
R6A
Lot area
1,703 sq ft
Building area
4,771 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 3017421. They should not be read as a single construction project unless the underlying filings say so.

The matched set includes 4 alteration filing, 3 new building. Its latest status categories are 6 approved, 1 recorded as completed. Each filing page preserves its own status, dates, scope and source identifier.

First included filing
Oct 20, 2021
Latest recorded change
Jun 5, 2026
Highest proposed story count
4 stories
Highest proposed unit count
4 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 7 matched filings, in the order it was recorded. A date marks what entered the public record, not what happened on site.

  1. New building filed

    Erect a new 4 story w/ cellar residential building. Filing B00612705-I1.

    01
  2. Alteration filed

    Submit plumbing plan in conjunction with nb application #b00612705-i1. Filing B00622599-I1.

    02
  3. Alteration filed

    Submit mechanical plan in conjunction with nb application #b00612705. Filing B00622604-I1.

    03
  4. Alteration approved

    Filing B00622599-I1 reached an approved status.

    04
  5. New building approved

    Filing B00612705-I1 reached an approved status.

    05
  6. Alteration approved

    Filing B00622604-I1 reached an approved status.

    06
  7. New building filed

    Filing for fo work in conjunction with nb application #b00612705-i1. Filing B00612705-S1.

    07
  8. New building approved

    Filing B00612705-S1 reached an approved status.

    08
  9. Permit recorded for new building

    DOB lists a first permit date for B00612705-I1. That is not by itself confirmation of activity on site.

    09
  10. Permit recorded for new building

    DOB lists a first permit date for B00612705-S1. That is not by itself confirmation of activity on site.

    010
  11. Permit recorded for alteration

    DOB lists a first permit date for B00622599-I1. That is not by itself confirmation of activity on site.

    011
  12. New building filed

    Erect a new 4 story w/ cellar residential building. Filing B00612705-P3.

    012
  13. New building approved

    Filing B00612705-P3 reached an approved status.

    013
  14. New building now approved

    The latest status recorded for B00612705-P3 is “Approved.”

    014
  15. New building now approved

    The latest status recorded for B00612705-I1 is “Permit Entire.”

    015
  16. New building signed off

    DOB recorded a sign-off for B00612705-S1.

    016
  17. New building now completed

    The latest status recorded for B00612705-S1 is “LOC Issued.”

    017
  18. Permit recorded for alteration

    DOB lists a first permit date for B00622604-I1. That is not by itself confirmation of activity on site.

    018
  19. Alteration now approved

    The latest status recorded for B00622604-I1 is “Permit Entire.”

    019
  20. Alteration filed

    Submit plumbing plan in conjunction with nb application #b00612705-i1. Filing B00622599-P1.

    020
  21. Alteration approved

    Filing B00622599-P1 reached an approved status.

    021
  22. Alteration now approved

    The latest status recorded for B00622599-P1 is “Approved.”

    022
  23. Alteration filed

    Submit plumbing plan in conjunction with nb application #b00612705-i1. Filing B00622599-P3.

    023
  24. Alteration approved

    Filing B00622599-P3 reached an approved status.

    024
  25. Alteration now approved

    The latest status recorded for B00622599-P3 is “Approved.”

    025
  26. Alteration now approved

    The latest status recorded for B00622599-I1 is “Permit Entire.”

    026

Matched DOB filings

All included filings for this building.

Each card opens a distinct official-source filing. Statuses reflect the current Street Futures snapshot, accessed Sep 2, 2026; this list should not be treated as a complete title or permit search.

Keep reading

Where this building sits.

Neighborhoods

Sunset Park (West)

Streets

21 Street

Postal codes

11215