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Building record · BIN 3428833

670 Union Street

670 Union Street, Brooklyn, NY 11215

A consolidated, filing-by-filing view of DOB records matched to this building identifier. The current snapshot links 11 independently sourced records, including 3 that are not recorded as completed, closed or withdrawn.

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BUILDING RECORD · BIN 3428833

670 Union Street

Park Slope, Brooklyn

A consolidated public-record view · updated Nov 17, 2022

DOB filings
11
Active-status
3
Recorded addresses
2
Building data portrait

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

Matched filings11
Open or active-status records3
First included filingAug 7, 2019
Latest recorded changeNov 17, 2022

The lot

What is already here?

The lot holds a 6-story condominium with 14 homes, on a 6,668 sq ft lot.

  1. Floors 2–6Homes14 homes are recorded on this lot — about 3 homes to a floor. The city does not publish which floor any of them is on.
  2. Floor 1Street levelStreet level. The lot is recorded as elevator apartments.
  • Street levelElevator apartments
  • Homes14 recorded on the lot
  • Above the southern skylineFrom about floor 7 — the tallest thing within 60 m to the south is 19.1 m
Drawn from the outline and roof height the Department of City Planning publishes for this building: 21.3 m over 6 floors, as the city counts them. 2 runs of floors have something on record. The city publishes a roof height and a storey count for the lot, and nothing at all about any individual floor. What stands to the south is measured from the city’s own footprints and roof heights; it is a statement about the skyline, not a calculation of sunlight.
Floors
6
Residential units
14
Building type
Condominium
Land use
Elevator apartments
Zoning district
R6A
Lot area
6,668 sq ft
Building area
22,116 sq ft

What it sold for

5 apartments on this tax block changed hands in the year the city last published, at a median of $2,425,000, from 534,581 to 3,850,000.

Recorded sale prices from the Department of Finance’s rolling file, covering the year to Aug 31, 2026. Transfers under $10,000 are left out: New York records deed transfers between relatives at a dollar, and those are not sales. No apartment number and no name is carried from either side.

Lot facts come from NYC Department of City Planning, Primary Land Use Tax Lot Output (PLUTO) (64uk-42ks), accessed Sep 14, 2026. They describe the tax lot, not any single filing.

Violation record

Are there open violations here?

No open violations are recorded for this building. 3 notices are on file, all with a recorded resolution.

Open means the agency has not recorded a resolution, which is not the same as the problem still existing. What a violation is, and what it is not. From NYC Department of Buildings, DOB Violations (3h2n-5cm9), accessed Sep 14, 2026.

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 3428833. They should not be read as a single construction project unless the underlying filings say so.

The matched set includes 11 alteration filing. Its latest status categories are 8 recorded as completed, 3 approved. Each filing page preserves its own status, dates, scope and source identifier.

First included filing
Aug 7, 2019
Latest recorded change
Nov 17, 2022
Highest proposed story count
Not stated
Highest proposed unit count
14 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 11 matched filings, in the order it was recorded. A date marks what entered the public record, not what happened on site.

  1. Alteration filed

    Installation of temporary construction conjunction with demo job #321950705. Filing B00197033-I1.

    01
  2. Alteration approved

    Filing B00197033-I1 reached an approved status.

    02
  3. Alteration filed

    Installation of temporary construction conjunction with demo job #321950714. Filing B00197042-I1.

    03
  4. Alteration approved

    Filing B00197042-I1 reached an approved status.

    04
  5. Permit recorded for alteration

    DOB lists a first permit date for B00197033-I1. That is not by itself confirmation of activity on site.

    05
  6. Alteration filed

    Construction fence in conjunction with NB 321384612. Filing B00305115-I1.

    06
  7. Permit recorded for alteration

    DOB lists a first permit date for B00305115-I1. That is not by itself confirmation of activity on site.

    07
  8. Permit recorded for alteration

    DOB lists a first permit date for B00197042-I1. That is not by itself confirmation of activity on site.

    08
  9. Alteration filed

    Installation of sidewalk shed as per plans. no change in use, egress or occupancy. Filing B00327458-I1.

    09
  10. Alteration approved

    Filing B00327458-I1 reached an approved status.

    010
  11. Permit recorded for alteration

    DOB lists a first permit date for B00327458-I1. That is not by itself confirmation of activity on site.

    011
  12. Alteration signed off

    DOB recorded a sign-off for B00197042-I1.

    012
  13. Alteration filed

    Installation of temporary sidewalk shed as per plans. no change in use, egress or occupancy. Filing B00403752-I1.

    013
  14. Permit recorded for alteration

    DOB lists a first permit date for B00403752-I1. That is not by itself confirmation of activity on site.

    014
  15. Alteration filed

    Curb cut filing in association with new building. Filing B00113103-I1.

    015
  16. Alteration approved

    Filing B00113103-I1 reached an approved status.

    016
  17. Alteration filed

    Installation of pipe scaffold as per plans, shall comply with chapter # 33 of the code 2014, no changes to use, egress and occupancy. Filing B00505377-I1.

    017
  18. Permit recorded for alteration

    DOB lists a first permit date for B00505377-I1. That is not by itself confirmation of activity on site.

    018
  19. Alteration filed

    Installation of a temporarily material Hoist per plan submitted. Work shall comply with 2014 building codes chapter 33. No change in use, egress and/or occupancy with this application. Filing B00551713-I1.

    019
  20. Alteration filed

    Installation of pipe scaffold as per plans, shall comply with chapter # 33 of the code 2014, no changes to use, egress and occupancy. Filing B00505377-P1.

    020
  21. Alteration approved

    Filing B00505377-P1 reached an approved status.

    021
  22. Alteration now approved

    The latest status recorded for B00505377-P1 is “Approved.”

    022
  23. Permit recorded for alteration

    DOB lists a first permit date for B00551713-I1. That is not by itself confirmation of activity on site.

    023
  24. Alteration signed off

    DOB recorded a sign-off for B00197033-I1.

    024
  25. Alteration now completed

    The latest status recorded for B00197033-I1 is “LOC Issued.”

    025
  26. Alteration now completed

    The latest status recorded for B00197042-I1 is “LOC Issued.”

    026
  27. Alteration filed

    Installation of pipe scaffold as per plans, shall comply with chapter # 33 of the code 2014, no changes to use, egress and occupancy. Filing B00505377-P2.

    027
  28. Alteration approved

    Filing B00505377-P2 reached an approved status.

    028
  29. Alteration now approved

    The latest status recorded for B00505377-P2 is “Approved.”

    029
  30. Alteration filed

    Installation of temporary sidewalk shed as per plans. no change in use, egress or occupancy. Filing B00403752-P1.

    030
  31. Alteration approved

    Filing B00403752-P1 reached an approved status.

    031
  32. Alteration now approved

    The latest status recorded for B00403752-P1 is “Approved.”

    032
  33. Alteration signed off

    DOB recorded a sign-off for B00505377-I1.

    033
  34. Alteration now completed

    The latest status recorded for B00505377-I1 is “LOC Issued.”

    034
  35. Alteration signed off

    DOB recorded a sign-off for B00327458-I1.

    035
  36. Alteration now completed

    The latest status recorded for B00327458-I1 is “LOC Issued.”

    036
  37. Alteration signed off

    DOB recorded a sign-off for B00403752-I1.

    037
  38. Alteration now completed

    The latest status recorded for B00403752-I1 is “LOC Issued.”

    038
  39. Permit recorded for alteration

    DOB lists a first permit date for B00113103-I1. That is not by itself confirmation of activity on site.

    039
  40. Alteration signed off

    DOB recorded a sign-off for B00113103-I1.

    040
  41. Alteration now completed

    The latest status recorded for B00113103-I1 is “LOC Issued.”

    041
  42. Alteration signed off

    DOB recorded a sign-off for B00551713-I1.

    042
  43. Alteration now completed

    The latest status recorded for B00551713-I1 is “LOC Issued.”

    043
  44. Alteration signed off

    DOB recorded a sign-off for B00305115-I1.

    044
  45. Alteration now completed

    The latest status recorded for B00305115-I1 is “LOC Issued.”

    045

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 Oct 7, 2026; this list should not be treated as a complete title or permit search.

Keep reading

Where this building sits.

Neighborhoods

Park Slope

Streets

Union Street

Postal codes

11215

Applicants of record

Fl&m Engineering Design &inspectionPaul Perdek, PROF. ENG. PLLCMesh ArchitecturesTimes Buildings Engineering Service