Building record · BIN 3004479

172 Union Street

172 Union Street, Brooklyn, NY 11231

A consolidated, filing-by-filing view of DOB records matched to this building identifier. The current snapshot links 3 independently sourced records, including 2 that are not recorded as completed, closed or withdrawn.

Open full map
172 Union 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 filings3
Open or active-status records2
First included filingJun 5, 2023
Latest recorded changeSep 3, 2026

The lot

What is already here?

The lot holds a 4-story walk-up apartment building built in 1900, with 8 homes, on a 3,000 sq ft lot.

Built
1900
Last altered
2023
Floors
4
Residential units
8
Building type
Walk-up apartment building
Land use
Walk-up apartments
Zoning district
R6A
Lot area
3,000 sq ft
Building area
7,440 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.

Violation record

Are there open violations here?

The Department of Buildings has 1 open notice on record for this building, out of 3 notices on file; the most recent was issued Aug 16, 1993.

  • Local law 62/91 - boilers

    Issued Aug 16, 1993

A violation is a notice the Department of Buildings recorded against the building. It is not a judgment, and many concern paperwork rather than safety. Open means the agency has not recorded a resolution, which is not the same as the problem still existing. From NYC Department of Buildings, DOB Violations (3h2n-5cm9), accessed Sep 5, 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 3004479. They should not be read as a single construction project unless the underlying filings say so.

The matched set includes 3 alteration filing. Its latest status categories are 2 approved, 1 recorded as completed. Each filing page preserves its own status, dates, scope and source identifier.

First included filing
Jun 5, 2023
Latest recorded change
Sep 3, 2026
Highest proposed story count
4 stories
Highest proposed unit count
8 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.

  1. Alteration filed

    G.c. work for the interior reno of ex. 1 fl. apt #1l, 4 fl. apts #4r & 4l & install roof bullhead & fence as per plans, no change to ex. use, egress, occupancy, parking, energy efficiency, accessibility, or fire resistance ratings proposed under this app. Filing B00884678-I1.

    01
  2. Alteration approved

    Filing B00884678-I1 reached an approved status.

    02
  3. Alteration filed

    Plumbing application file in conjunction with the general construction application as per plans. Filing B00884678-S1.

    03
  4. Alteration approved

    Filing B00884678-S1 reached an approved status.

    04
  5. Permit recorded for alteration

    DOB lists a first permit date for B00884678-I1. That is not by itself confirmation of activity on site.

    05
  6. Permit recorded for alteration

    DOB lists a first permit date for B00884678-S1. That is not by itself confirmation of activity on site.

    06
  7. Alteration filed

    G.c. work for the interior reno of ex. 1 fl. apt #1l, 4 fl. apts #4r & 4l & install roof bullhead & fence as per plans, no change to ex. use, egress, occupancy, parking, energy efficiency, accessibility, or fire resistance ratings proposed under this app. Filing B00884678-P6.

    07
  8. Alteration signed off

    DOB recorded a sign-off for B00884678-S1.

    08
  9. Alteration now completed

    The latest status recorded for B00884678-S1 is “LOC Issued.”

    09
  10. Alteration approved

    Filing B00884678-P6 reached an approved status.

    010
  11. Alteration now approved

    The latest status recorded for B00884678-P6 is “Approved.”

    011
  12. Alteration now approved

    The latest status recorded for B00884678-I1 is “Permit Entire.”

    012