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Building record · BIN 3021513

451 6 Street

451 6 Street, Brooklyn, NY 11215

A consolidated, filing-by-filing view of DOB records matched to this building identifier. The current snapshot links 10 independently sourced records, including 6 that are not recorded as completed, closed or withdrawn.

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BUILDING RECORD · BIN 3021513

451 6 Street

Park Slope, Brooklyn

A consolidated public-record view · updated Nov 5, 2025

DOB filings
10
Active-status
6
Recorded addresses
1
Building data portrait

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

Matched filings10
Open or active-status records6
First included filingAug 5, 2019
Latest recorded changeNov 5, 2025

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 3021513. They should not be read as a single construction project unless the underlying filings say so.

The matched set includes 10 alteration filing. Its latest status categories are 4 recorded as completed, 6 approved. Each filing page preserves its own status, dates, scope and source identifier.

First included filing
Aug 5, 2019
Latest recorded change
Nov 5, 2025
Highest proposed story count
4 stories
Highest proposed unit count
3 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 10 matched filings, in the order it was recorded. A date marks what entered the public record, not what happened on site.

  1. Alteration filed

    Subsequent Sprinkler Application for Sprinkler Work Type in conjunction with BIS job # 321964781. Filing B00203110-I1.

    01
  2. Alteration filed

    PROPOSED NEW REAR 2-STORY HORIZONTAL EXTENSION WITH NEW NONCOMBUSTIBLE ROOF in conjunction with Job # 321964781. Replacing wood joists at rear 2nd & 3rd floors. And add mechanical units on the roof. Filing B00202585-I1.

    02
  3. Alteration approved

    Filing B00203110-I1 reached an approved status.

    03
  4. Alteration approved

    Filing B00202585-I1 reached an approved status.

    04
  5. Alteration filed

    Temporary Construction Fence in rear yard. Filing B00202585-S1.

    05
  6. Alteration approved

    Filing B00202585-S1 reached an approved status.

    06
  7. Alteration filed

    PROPOSED NEW REAR 2-STORY HORIZONTAL EXTENSION WITH NEW NONCOMBUSTIBLE ROOF in conjunction with Job # 321964781. Replacing wood joists at rear 2nd & 3rd floors. Filing B00202585-P1.

    07
  8. Alteration approved

    Filing B00202585-P1 reached an approved status.

    08
  9. Permit recorded for alteration

    DOB lists a first permit date for B00202585-I1. That is not by itself confirmation of activity on site.

    09
  10. Permit recorded for alteration

    DOB lists a first permit date for B00203110-I1. That is not by itself confirmation of activity on site.

    010
  11. Alteration now approved

    The latest status recorded for B00202585-P1 is “Approved.”

    011
  12. Alteration filed

    PROPOSED NEW REAR 2-STORY HORIZONTAL EXTENSION WITH NEW NONCOMBUSTIBLE ROOF in conjunction with Job # 321964781. Replacing wood joists at rear 2nd & 3rd floors. And add mechanical units on the roof. Filing B00202585-P2.

    012
  13. Alteration filed

    Subsequent Domestic Plumbing work in conjunction with BIS job # 321964781. Filing B00203110-S1.

    013
  14. Alteration filed

    Subsequent Sprinkler Application for Sprinkler Work Type in conjunction with BIS job # 321964781. Filing B00203110-P1.

    014
  15. Alteration filed

    Mechanical work in conjunction with BIS job # 321964781. Filing B00203110-S2.

    015
  16. Alteration approved

    Filing B00203110-P1 reached an approved status.

    016
  17. Alteration now approved

    The latest status recorded for B00203110-P1 is “Approved.”

    017
  18. Alteration approved

    Filing B00203110-S2 reached an approved status.

    018
  19. Alteration approved

    Filing B00202585-P2 reached an approved status.

    019
  20. Alteration now approved

    The latest status recorded for B00202585-P2 is “Approved.”

    020
  21. Alteration approved

    Filing B00203110-S1 reached an approved status.

    021
  22. Alteration now approved

    The latest status recorded for B00203110-S1 is “Approved.”

    022
  23. Alteration filed

    Subsequent Sprinkler Application for Sprinkler Work Type in conjunction with BIS job # 321964781. Filing B00203110-P2.

    023
  24. Alteration approved

    Filing B00203110-P2 reached an approved status.

    024
  25. Alteration now approved

    The latest status recorded for B00203110-P2 is “Approved.”

    025
  26. Permit recorded for alteration

    DOB lists a first permit date for B00203110-S2. That is not by itself confirmation of activity on site.

    026
  27. Permit recorded for alteration

    DOB lists a first permit date for B00202585-S1. That is not by itself confirmation of activity on site.

    027
  28. Alteration signed off

    DOB recorded a sign-off for B00202585-S1.

    028
  29. Alteration now completed

    The latest status recorded for B00202585-S1 is “LOC Issued.”

    029
  30. Alteration signed off

    DOB recorded a sign-off for B00203110-S2.

    030
  31. Alteration now completed

    The latest status recorded for B00203110-S2 is “LOC Issued.”

    031
  32. Alteration filed

    PROPOSED NEW REAR 2-STORY HORIZONTAL EXTENSION WITH NEW NONCOMBUSTIBLE ROOF in conjunction with Job # 321964781. Replacing wood joists at rear 2nd & 3rd floors. And add mechanical units on the roof. Filing B00202585-P3.

    032
  33. Alteration approved

    Filing B00202585-P3 reached an approved status.

    033
  34. Alteration now approved

    The latest status recorded for B00202585-P3 is “Approved.”

    034
  35. Alteration signed off

    DOB recorded a sign-off for B00203110-I1.

    035
  36. Alteration now completed

    The latest status recorded for B00203110-I1 is “LOC Issued.”

    036
  37. Alteration signed off

    DOB recorded a sign-off for B00202585-I1.

    037
  38. Alteration now completed

    The latest status recorded for B00202585-I1 is “LOC Issued.”

    038

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 11, 2026; this list should not be treated as a complete title or permit search.

Keep reading

Where this building sits.

Neighborhoods

Park Slope

Streets

6 Street

Postal codes

11215

Applicants of record

Anz Consulting Engineering, PLLCKnf Services Corp