NYC DOB record · B00458312-I1

434 Union Street

434 Union Street, Brooklyn, NY 11231

Alteration filing in Carroll Gardens-Cobble Hill-Gowanus-Red Hook, Brooklyn. The latest DOB status is loc issued.

DOB has issued a Letter of Completion, which records that the work in this filing is finished.

Recorded as completedAlteration filing

NYC Department of Buildings · w9ak-ipjd · accessed Sep 14, 2026 · Verify the source row

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NYC DOB RECORD · B00458312-I1

434 Union Street

Brooklyn, NY 11231

Alteration filing · status dated Aug 19, 2021

Current record
Recorded as completed
Proposed scale
4 stories
Dwelling units
3
Filing data portrait

A page-specific reading of the filing status, location and stated scale. Values are drawn from the cited DOB record.

Address record at a glance

What is filed at this address?

NYC DOB lists filing B00458312-I1 as a alteration filing at 434 Union Street, Brooklyn, NY 11231. Its latest published status category is Recorded as completed, dated Aug 19, 2021. The filing records 4 proposed stories and 3 proposed dwelling units.

A filing or approval does not by itself confirm that work is underway. Proposed details may change in later DOB records.
Filing type
Alteration filing
Latest status
Recorded as completed
Latest status date
Aug 19, 2021
Proposed scale
4 proposed stories and 3 proposed dwelling units
Complete building dossierView all 3 filings associated with BIN 3007327Applicant of recordSee the 35 filings that name Celin Munoz Consulting Engineer, PC
FiledMar 31, 2021
Current recordRecorded as completed
Proposed scale4 stories
Recorded cost$9,400

What the filing says

A public-record reading of the proposed work.

Filing herewith structural and foundation (footing) work type for new rear yard deck in conjunction with alt1 #321542620. no change in use, egress, and occupancy is involved under this application.

Street Futures classifies this record as a alteration filing based on the filing type and work flags published by the Department of Buildings. This classification helps organize the map; it does not add scope that is absent from the DOB record.

The lot this filing sits on

What is already here?

The lot holds a 3-story condominium built in 1920, with 3 homes, on a 2,033 sq ft lot.

Built
1920
Floors
3
Residential units
3
Building type
Condominium
Land use
Walk-up apartments
Zoning district
R6B
Lot area
2,033 sq ft
Building area
3,777 sq ft

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 this filing.

Recorded timeline

Dates published by the Department of Buildings.

  1. Application filed

    DOB received filing B00458312-I1.

    01
  2. Application approved

    The application reached an approved status in the DOB record.

    02
  3. First permit date recorded

    DOB lists a first permit date. This does not by itself confirm current construction activity.

    03
  4. Current status updated

    The latest recorded filing status is “LOC Issued.”

    04
  5. Sign-off date recorded

    DOB lists a sign-off date for this filing.

    05

Scope and identifiers

The details used to match this filing.

Where a field reads “empty in the source”, the city published this filing without that value. It is not an omission on our side, and nothing here is inferred to fill a gap.

DOB filing number
B00458312-I1
BBL
3004377501
Review type
Standard Plan Examination
Existing stories
4
Proposed stories
4
Existing dwelling units
3
Proposed dwelling units
3
General constructionStructural workFoundation workEarthwork