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Building record · BIN 3429142

423 78 Street

423 78 Street, Brooklyn, NY 11209

A consolidated, filing-by-filing view of DOB records matched to this building identifier. The current snapshot links 20 independently sourced records, including 6 that are not recorded as completed, closed or withdrawn.

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423 78 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 filings20
Open or active-status records6
First included filingJul 14, 2021
Latest recorded changeMay 8, 2026

The lot

What is already here?

The lot holds a 3-story two-family home built in 2025, on a 3,000 sq ft lot.

Built
2025
Floors
3
Residential units
2
Building type
Two-family home
Land use
One and two family homes
Zoning district
R4-1
Lot area
3,000 sq ft
Building area
2,656 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 3429142. They should not be read as a single construction project unless the underlying filings say so.

The matched set includes 17 new building, 3 alteration filing. Its latest status categories are 8 recorded as completed, 6 closed or withdrawn, 6 approved. Each filing page preserves its own status, dates, scope and source identifier.

First included filing
Jul 14, 2021
Latest recorded change
May 8, 2026
Highest proposed story count
3 stories
Highest proposed unit count
2 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 20 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

    New 2-family residence. Filing B00550841-I1.

    01
  2. Alteration filed

    Filing curb cut for 423 78th street in conjunction with nb # b00550841. Filing B00606779-I1.

    02
  3. Alteration approved

    Filing B00606779-I1 reached an approved status.

    03
  4. Alteration filed

    Mechanical work filed in conjunction with NB # B00550841. No Change in use, egress or occupancy. Filing B00597867-I1.

    04
  5. Alteration filed

    New plumbing and sprinkler work filed in conjunction with NB # B00550841. No change in use, egress or occupancy. Filing B00597824-I1.

    05
  6. Alteration approved

    Filing B00597867-I1 reached an approved status.

    06
  7. Alteration approved

    Filing B00597824-I1 reached an approved status.

    07
  8. New building approved

    Filing B00550841-I1 reached an approved status.

    08
  9. New building filed

    Herewith filing earthwork. Filing B00550841-S2.

    09
  10. New building filed

    Herewith filing structural. Filing B00550841-S3.

    010
  11. New building filed

    Herewith foundation work. Filing B00550841-S1.

    011
  12. New building filed

    Install consruction fence as per plans. Filing B00550841-S5.

    012
  13. New building approved

    Filing B00550841-S5 reached an approved status.

    013
  14. New building filed

    Structural plans filed inconjuction with new building. Filing B00550841-S6.

    014
  15. Permit recorded for new building

    DOB lists a first permit date for B00550841-S5. That is not by itself confirmation of activity on site.

    015
  16. New building filed

    Support of excavation plans filed inconjuction with new building. Filing B00550841-S7.

    016
  17. New building approved

    Filing B00550841-S7 reached an approved status.

    017
  18. New building filed

    Install plumbing fixtures and related piping as per plans. Filing B00550841-S8.

    018
  19. New building filed

    Install mechanical equipment in conjuction with new building application as per plans. Filing B00550841-S9.

    019
  20. New building filed

    Install sprinkler system as per plans. Filing B00550841-Z1.

    020
  21. New building filed

    Install curb cut as per plans. Filing B00550841-Z2.

    021
  22. New building approved

    Filing B00550841-S9 reached an approved status.

    022
  23. New building approved

    Filing B00550841-Z1 reached an approved status.

    023
  24. Permit recorded for new building

    DOB lists a first permit date for B00550841-S7. That is not by itself confirmation of activity on site.

    024
  25. New building approved

    Filing B00550841-S8 reached an approved status.

    025
  26. New building approved

    Filing B00550841-S6 reached an approved status.

    026
  27. Permit recorded for new building

    DOB lists a first permit date for B00550841-I1. That is not by itself confirmation of activity on site.

    027
  28. Permit recorded for new building

    DOB lists a first permit date for B00550841-S6. That is not by itself confirmation of activity on site.

    028
  29. New building approved

    Filing B00550841-Z2 reached an approved status.

    029
  30. New building filed

    New 2-family residence. Filing B00550841-P2.

    030
  31. New building filed

    Structural plans filed inconjuction with new building. Filing B00550841-P3.

    031
  32. Permit recorded for new building

    DOB lists a first permit date for B00550841-S8. That is not by itself confirmation of activity on site.

    032
  33. Permit recorded for new building

    DOB lists a first permit date for B00550841-Z1. That is not by itself confirmation of activity on site.

    033
  34. New building approved

    Filing B00550841-P2 reached an approved status.

    034
  35. New building now approved

    The latest status recorded for B00550841-P2 is “Approved.”

    035
  36. New building signed off

    DOB recorded a sign-off for B00550841-S7.

    036
  37. New building now completed

    The latest status recorded for B00550841-S7 is “LOC Issued.”

    037
  38. New building approved

    Filing B00550841-P3 reached an approved status.

    038
  39. New building now approved

    The latest status recorded for B00550841-P3 is “Approved.”

    039
  40. New building filed

    Install sprinkler system as per plans. Filing B00550841-P5.

    040
  41. New building approved

    Filing B00550841-P5 reached an approved status.

    041
  42. New building now approved

    The latest status recorded for B00550841-P5 is “Approved.”

    042
  43. New building now closed

    The latest status recorded for B00550841-S1 is “Filing Withdrawn.”

    043
  44. New building now closed

    The latest status recorded for B00550841-S3 is “Filing Withdrawn.”

    044
  45. New building signed off

    DOB recorded a sign-off for B00550841-S5.

    045
  46. New building now completed

    The latest status recorded for B00550841-S5 is “LOC Issued.”

    046
  47. Permit recorded for new building

    DOB lists a first permit date for B00550841-S9. That is not by itself confirmation of activity on site.

    047
  48. Permit recorded for new building

    DOB lists a first permit date for B00550841-Z2. That is not by itself confirmation of activity on site.

    048
  49. Alteration now closed

    The latest status recorded for B00597824-I1 is “Filing Withdrawn.”

    049
  50. Alteration now closed

    The latest status recorded for B00606779-I1 is “Filing Withdrawn.”

    050
  51. New building filed

    New 2-family residence. Filing B00550841-P7.

    051
  52. New building filed

    Install plumbing fixtures and related piping as per plans. Filing B00550841-P6.

    052
  53. New building signed off

    DOB recorded a sign-off for B00550841-S6.

    053
  54. New building now completed

    The latest status recorded for B00550841-S6 is “LOC Issued.”

    054
  55. New building approved

    Filing B00550841-P6 reached an approved status.

    055
  56. New building now approved

    The latest status recorded for B00550841-P6 is “Approved.”

    056
  57. New building approved

    Filing B00550841-P7 reached an approved status.

    057
  58. New building now approved

    The latest status recorded for B00550841-P7 is “Approved.”

    058
  59. New building signed off

    DOB recorded a sign-off for B00550841-Z2.

    059
  60. New building now completed

    The latest status recorded for B00550841-Z2 is “LOC Issued.”

    060
  61. New building signed off

    DOB recorded a sign-off for B00550841-Z1.

    061
  62. New building now completed

    The latest status recorded for B00550841-Z1 is “LOC Issued.”

    062
  63. New building filed

    New 2-family residence. Filing B00550841-P8.

    063
  64. New building signed off

    DOB recorded a sign-off for B00550841-S9.

    064
  65. New building approved

    Filing B00550841-P8 reached an approved status.

    065
  66. New building now approved

    The latest status recorded for B00550841-P8 is “Approved.”

    066
  67. New building now completed

    The latest status recorded for B00550841-S9 is “LOC Issued.”

    067
  68. New building signed off

    DOB recorded a sign-off for B00550841-S8.

    068
  69. New building now completed

    The latest status recorded for B00550841-S8 is “LOC Issued.”

    069
  70. New building now closed

    The latest status recorded for B00550841-S2 is “Filing Withdrawn.”

    070
  71. Alteration now closed

    The latest status recorded for B00597867-I1 is “Filing Withdrawn.”

    071
  72. New building signed off

    DOB recorded a sign-off for B00550841-I1.

    072
  73. New building now completed

    The latest status recorded for B00550841-I1 is “CO Issued.”

    073

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

Bay Ridge

Streets

78 Street

Postal codes

11209