Alteration filingSep 9
DOB filing B01408705-S4
Alteration filing at 421 Hart Street
Under review$10,000 recorded cost
Open filing Building record · BIN 3043058
421 Hart Street
421 Hart Street, Brooklyn, NY 11221
A consolidated, filing-by-filing view of DOB records matched to this building identifier. The current snapshot links 5 independently sourced records, including 5 that are not recorded as completed, closed or withdrawn.
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BUILDING RECORD · BIN 3043058
421 Hart Street
Bedford-Stuyvesant (East), Brooklyn
A consolidated public-record view · updated Sep 9, 2026
- DOB filings
- 5
- Active-status
- 5
- Recorded addresses
- 1
A building-level summary of matched filings, active-status records and published identifiers.
Matched filings5
Open or active-status records5
First included filingJan 30, 2019
Latest recorded changeSep 9, 2026
The lot
What is already here?
The lot holds a 2-story two-family home built in 1899, on a 2,000 sq ft lot.
- Built
- 1899
- Last altered
- 2015
- Floors
- 2
- Residential units
- 2
- Building type
- Two-family home
- Land use
- One and two family homes
- Zoning district
- C4-4L
- Lot area
- 2,000 sq ft
- Building area
- 2,160 sq ft
Lot facts come from NYC Department of City Planning, Primary Land Use Tax Lot Output (PLUTO) (64uk-42ks), accessed Sep 12, 2026. They describe the tax lot, not any single filing.
Violation record
Are there open violations here?
The Department of Buildings has 8 open notices on record for this building, out of 10 notices on file; the most recent was issued Apr 13, 2022.
- Fail to certify class
Issued Apr 13, 2022 — FAILURE TO CERTIFY CORRECTION ON IMMEDIATELY HAZARDOUS (CLASS 1) ECB VIOLATION
- Construction
Issued Nov 14, 2019
- Construction
Issued Nov 14, 2019
5 further open notices are on file. Open the source dataset for the full list.
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 11, 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 3043058. They should not be read as a single construction project unless the underlying filings say so.
The matched set includes 5 alteration filing. Its latest status categories are 1 under review, 4 approved. Each filing page preserves its own status, dates, scope and source identifier.
- First included filing
- Jan 30, 2019
- Latest recorded change
- Sep 9, 2026
- Highest proposed story count
- Not stated
- Highest proposed unit count
- 9 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 5 matched filings, in the order it was recorded. A date marks what entered the public record, not what happened on site.
- Alteration filed01
Proposed installation of heavy duty sidewalk shed for remedial repairs as per plans. no change in use occupancy or egress under this application. live load 300 per square feet. sidewalk shed shall comply with chapter # 33 of the 2014 code. Filing B00124225-I1.
- Permit recorded for alteration02
DOB lists a first permit date for B00124225-I1. That is not by itself confirmation of activity on site.
- Alteration filed03
Installation of sidewalk shed as per plans. no change in use, egress or occupancy. Filing B00247221-I1.
- Alteration filed04
Installation of pipe scaffold as per plans. no change in use, egress or occupancy. Filing B00247229-I1.
- Alteration approved05
Filing B00247221-I1 reached an approved status.
- Alteration approved06
Filing B00247229-I1 reached an approved status.
- Alteration now approved07
The latest status recorded for B00247221-I1 is “Approved.”
- Alteration now approved08
The latest status recorded for B00247229-I1 is “Approved.”
- Alteration now approved09
The latest status recorded for B00124225-I1 is “Permit Entire.”
- Alteration filed010
Support of Excavation in conjunction with the ALT-I application in BIS 321253558-06. Filing B01408705-I1.
- Alteration filed011
Foundation \ Earthwork in conjunction with the ALT-I application filed in BIS 321253558. Filing B01408705-S4.
- Alteration approved012
Filing B01408705-I1 reached an approved status.
- Alteration now approved013
The latest status recorded for B01408705-I1 is “Approved.”
- Alteration now under review014
The latest status recorded for B01408705-S4 is “Objections.”