New buildingOct 26
DOB filing B01110047-I1
New building at 423 Dean Street
Approved4 proposed stories
Open filing Building record · BIN 3429919
423 Dean Street
423 Dean Street, Brooklyn, NY 11217
A consolidated, filing-by-filing view of DOB records matched to this building identifier. The current snapshot links 3 independently sourced records, including 3 that are not recorded as completed, closed or withdrawn.
newyorkdailyStreet Futures
BUILDING RECORD · BIN 3429919
423 Dean Street
Park Slope, Brooklyn
A consolidated public-record view · updated Oct 26, 2026
- DOB filings
- 3
- Active-status
- 3
- Recorded addresses
- 1
A building-level summary of matched filings, active-status records and published identifiers.
Matched filings3
Open or active-status records3
First included filingSep 18, 2024
Latest recorded changeOct 26, 2026
The lot
What is already here?
The lot holds a vacant land on a 5,340 sq ft lot.
- Residential units
- 0
- Building type
- Vacant land
- Land use
- Vacant land
- Zoning district
- R6B
- Lot area
- 5,340 sq ft
The apartments
36 condominium apartments are assessed on this block, and the typical one is 1,125 sq ft (105 m²). They run from 66 to 325 m².
The city values the typical one at $416,033. That is the Department of Finance’s market valuation for tax, not an asking price and not a sale.
What it sold for
The property itself last changed hands for $6,650,000 on Oct 16, 2025.
Recorded sale prices from the Department of Finance’s rolling file, covering the year to Sep 30, 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
5529-427-433 DEAN STREET BROOKLYN LLC
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 28, 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 10, 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 3429919. They should not be read as a single construction project unless the underlying filings say so.
The matched set includes 3 new building. Its latest status categories are 3 approved. Each filing page preserves its own status, dates, scope and source identifier.
- First included filing
- Sep 18, 2024
- Latest recorded change
- Oct 26, 2026
- Highest proposed story count
- 4 stories
- Highest proposed unit count
- 11 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.
Address alerts
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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.
- New building filed01
Proposed 5 story residential building with cellar. Building is being developed pursuant to Quality Housing. Filing B01110047-I1.
- New building filed02
Structural work for new building. Filing B01110047-S3.
- New building approved03
Filing B01110047-S3 reached an approved status.
- New building approved04
Filing B01110047-I1 reached an approved status.
- Permit recorded for new building05
DOB lists a first permit date for B01110047-S3. That is not by itself confirmation of activity on site.
- Permit recorded for new building06
DOB lists a first permit date for B01110047-I1. That is not by itself confirmation of activity on site.
- New building filed07
Installation and use of temporary knuckleboom as per plans filed herewith. no change in use egress, or occupancy. Filing B01110047-S8.
- Permit recorded for new building08
DOB lists a first permit date for B01110047-S8. That is not by itself confirmation of activity on site.
- New building now approved09
The latest status recorded for B01110047-S8 is “Permit Entire.”
- New building now approved010
The latest status recorded for B01110047-I1 is “Permit Entire.”
- New building now approved011
The latest status recorded for B01110047-S3 is “Permit Entire.”