Alteration filingSep 14
DOB filing B01415540-P1
Alteration filing at 451 Classon Avenue
Approved4 proposed stories
Open filing Building record · BIN 3056519
451 Classon Avenue
451 Classon Avenue, Brooklyn, NY 11238
A consolidated, filing-by-filing view of DOB records matched to this building identifier. The current snapshot links 2 independently sourced records, including 2 that are not recorded as completed, closed or withdrawn.
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BUILDING RECORD · BIN 3056519
451 Classon Avenue
Bedford-Stuyvesant (West), Brooklyn
A consolidated public-record view · updated Sep 14, 2026
- DOB filings
- 2
- Active-status
- 2
- Recorded addresses
- 1
A building-level summary of matched filings, active-status records and published identifiers.
Matched filings2
Open or active-status records2
First included filingAug 19, 2026
Latest recorded changeSep 14, 2026
The lot
What is already here?
The lot holds a 4-story mainly residential with some commercial built in 1930, with 3 homes, on a 1,254 sq ft lot.
- Floors 2–4Homes3 homes are recorded on this lot — about one home to a floor. The city does not publish which floor any of them is on.
- Floor 1Street levelStreet level. The lot is recorded as mixed residential and commercial, so this floor is where the commercial space is.
- Street levelMixed residential and commercial
- Homes3 recorded on the lot
- Above the southern skylineFrom about floor 6 — the tallest thing within 60 m to the south is 16.6 m
- Built
- 1930
- Last altered
- 2017
- Floors
- 4
- Residential units
- 3
- Building type
- Mainly residential with some commercial
- Land use
- Mixed residential and commercial
- Zoning district
- R6B
- Lot area
- 1,254 sq ft
- Building area
- 2,946 sq ft
Housing violations
16 violations are open against this address under the Housing Maintenance Code. 5 of them are the class the city calls immediately hazardous.
- 5Immediately hazardous
- 8Hazardous
- 2Non-hazardous
- 1Information order
Open means the Department of Housing Preservation and Development has not recorded it as corrected, which is not the same as nobody having fixed it. The city publishes the apartment each was written against; that is not carried here, because a count says a building has a problem and an apartment number says whose.
What it sold for
5 apartments on this tax block changed hands in the year the city last published, at a median of $1,250,000, from 735,000 to 2,210,000.
The property itself last changed hands for $1,500,000 on Jul 2, 2026.
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.
Lot facts come from NYC Department of City Planning, Primary Land Use Tax Lot Output (PLUTO) (64uk-42ks), accessed Sep 17, 2026. They describe the tax lot, not any single filing. When the rest of New York went up
Violation record
Are there open violations here?
The Department of Buildings has 3 open notices on record for this building, out of 3 notices on file; the most recent was issued May 9, 2023.
- Construction
Issued May 9, 2023 — FTM-EXP4 PARAPET @MAIN ROOF IN DISREPAIR W/MISSING COPING &OUTWARD BULGE @EXP 1/4 END,DTRIORATD BRCKS &MORTAR @MULTI LOCTN,&LOOSE OUTWARD DISPLACD BRCKS @EXP 3/4 CORNR.1STRY SETBACK @EXP3 EXTREME DISREPAIR COMPLY WITH DOB VIOLATION 031822FEU30303BS IMMEDIATELY
- Construction
Issued Mar 18, 2022 — FTM-EXP4 PARAPET @MAIN ROOF IN DISREPAIR W/MISSING COPING &OUTWARD BULGE @EXP1/4 END,DTRIORATD BRCKS &MORTAR @MULTI LOCTN,&LOOSEOUTWARD DISPLACD BRCKS @EXP3/4 CORNR.1STRY SETBACK @EXP3 EXTRME DISRPR NYSPE STRCTRL ENGNR-IMMED EVALU ENTIRE BLDG& DSGN RPRS.FILE PRMTS BY 4/18/22.OBTN PRMT&STRT WRK BY 5/2/22.COMPLT BY 6/6/22
- Construction
Issued Mar 18, 2022 — STRUCTURE RENDERED NON-COMPLIANT. AT THE TIME OF THE INSPECTION OBSERV ED BULGING WALL
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 21, 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 3056519. They should not be read as a single construction project unless the underlying filings say so.
The matched set includes 2 alteration filing. Its latest status categories are 2 approved. Each filing page preserves its own status, dates, scope and source identifier.
- First included filing
- Aug 19, 2026
- Latest recorded change
- Sep 14, 2026
- Highest proposed story count
- 4 stories
- Highest proposed unit count
- 2 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 2 matched filings, in the order it was recorded. A date marks what entered the public record, not what happened on site.
- Alteration filed01
Repair the brick wall at east side for the existing 4 story brick building and to resolve violations 39173292j; 39085884n; 39166433z;. Filing B01415540-I1.
- Alteration approved02
Filing B01415540-I1 reached an approved status.
- Alteration filed03
Repair the brick wall at east side for the existing 4 story brick building and to resolve violations 39173292j; 39085884n; 39166433z;. Filing B01415540-P1.
- Alteration approved04
Filing B01415540-P1 reached an approved status.
- Alteration now approved05
The latest status recorded for B01415540-P1 is “Approved.”
- Alteration now approved06
The latest status recorded for B01415540-I1 is “Approved.”