New buildingSep 29
DOB filing B00975270-A2
New building at 50 Mollenhauer Drive
Under review39 proposed stories
Open filing Building record · BIN 3430611
50 Mollenhauer Drive
50 Mollenhauer Drive, Brooklyn, NY 11249
A consolidated, filing-by-filing view of DOB records matched to this building identifier. The current snapshot links 6 independently sourced records, including 6 that are not recorded as completed, closed or withdrawn.
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BUILDING RECORD · BIN 3430611
50 Mollenhauer Drive
Williamsburg, Brooklyn
A consolidated public-record view · updated Sep 29, 2026
- DOB filings
- 6
- Active-status
- 6
- Recorded addresses
- 1
A building-level summary of matched filings, active-status records and published identifiers.
Matched filings6
Open or active-status records6
First included filingJun 14, 2024
Latest recorded changeSep 29, 2026
The lot
What is already here?
The lot holds a vacant land on a 64,845 sq ft lot.
- Residential units
- 0
- Building type
- Vacant land
- Land use
- Vacant land
- Zoning district
- R7-3
- Lot area
- 64,845 sq ft
The apartments
598 condominium apartments are assessed on this block, and the typical one is 1,191 sq ft (111 m²). They run from 40 to 247 m².
The city values the typical one at $288,093. That is the Department of Finance’s market valuation for tax, not an asking price and not a sale.
What it sold for
26 apartments on this tax block changed hands in the year the city last published, at a median of $1,600,000, from 728,049 to 7,200,000.
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.
Owner of record
NYC DSBS
As the assessment roll records it. Only owners that read as a company are shown here; where the roll names an individual, nothing is published.
Lot facts come from NYC Department of City Planning, Primary Land Use Tax Lot Output (PLUTO) (64uk-42ks), accessed Oct 2, 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.
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 29, 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 3430611. They should not be read as a single construction project unless the underlying filings say so.
The matched set includes 2 new building, 4 alteration filing. Its latest status categories are 2 under review, 4 approved. Each filing page preserves its own status, dates, scope and source identifier.
- First included filing
- Jun 14, 2024
- Latest recorded change
- Sep 29, 2026
- Highest proposed story count
- 39 stories
- Highest proposed unit count
- 360 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 6 matched filings, in the order it was recorded. A date marks what entered the public record, not what happened on site.
- New building filed01
Structural work in conjunction with nb application b00975270-i1. Filing B00975270-S4.
- New building approved02
Filing B00975270-S4 reached an approved status.
- New building filed03
Mechanical application in conjunction with nb application b00975270-i1. Filing B00975270-A2.
- Alteration filed04
Use of knuckleboom temporary construction equipment as per plans filed herewith. This application is filed in conjunction with NB B00975270-I1. Filing B01452993-I1.
- Permit recorded for alteration05
DOB lists a first permit date for B01452993-I1. That is not by itself confirmation of activity on site.
- Alteration now approved06
The latest status recorded for B01452993-I1 is “Permit Entire.”
- Alteration filed07
Installation and use of temporary exterior climbing platforms as per plans filed herewith. no change in use, egress, or occupancy. Filing B01458438-I1.
- Alteration filed08
Heavy duty sidewalk shed during nb const, filed sep. sidewalk shed shall comply with ch #33 of the NYC bc. no change in use, occupancy or egress under this application. Filing B01465683-S1.
- Alteration filed09
Construction fence as per drawings during nb const, filed sep. construction fence shall comply with ch #33 of the NYC bc. no change in use, occupancy or egress under this application. fence to be installed on roadway. dot permits by others. Filing B01465683-I1.
- Permit recorded for alteration010
DOB lists a first permit date for B01465683-S1. That is not by itself confirmation of activity on site.
- Alteration now approved011
The latest status recorded for B01465683-S1 is “Permit Entire.”
- Permit recorded for alteration012
DOB lists a first permit date for B01465683-I1. That is not by itself confirmation of activity on site.
- Alteration now approved013
The latest status recorded for B01465683-I1 is “Permit Entire.”
- Alteration now under review014
The latest status recorded for B01458438-I1 is “Plan Examiner Review.”
- New building now under review015
The latest status recorded for B00975270-A2 is “Plan Examiner Review.”
- Permit recorded for new building016
DOB lists a first permit date for B00975270-S4. That is not by itself confirmation of activity on site.
- New building now approved017
The latest status recorded for B00975270-S4 is “Permit Entire.”