Does 6401 23 Avenue, Brooklyn have open violations?

Yes. 6401 23 Avenue, Brooklyn had 4 open violations on October 10, 2026: 4 from HPD. 3 are Class C, the class HPD treats as immediately hazardous. The oldest open HPD violation has been open 21 months, since January 2, 2025.

Is 6401 23 Avenue, Brooklyn getting better or worse?

Open violations are sitting, with little movement either way. 3 open Class C, with nothing filed or new in the last 180 days. That window ends October 10, 2026. It compares certifications filed with new Class C violations, and it describes what happened, not what anyone intends.

When did 6401 23 Avenue, Brooklyn last file its bedbug report?

On July 9, 2026, for the year to October 31, 2025. HPD asks the owner of every building with 3 or more apartments for this report once a year, covering November 1 to October 31, including buildings that had no bedbugs.

When was 6401 23 Avenue, Brooklyn built?

The city's record gives 1930 as the year 6401 23 Avenue, Brooklyn was built, in the Department of City Planning's PLUTO tax-lot file. The same file classes it as a three-family dwelling with 2 floors.

How many apartments does 6401 23 Avenue, Brooklyn have?

The Department of City Planning's PLUTO tax-lot file lists 3 residential units at 6401 23 Avenue, Brooklyn. The count is for the whole tax lot.

Where do these numbers come from?

From New York City's own data: HPD housing violations and OATH/ECB hearing results, read whole rather than sampled. It also draws on DOB NOW work permits, HPD's annual bedbug reports, the city's PLUTO tax-lot file and DOF's property sales records. This page is current through October 10, 2026. The city's data changes daily, so a violation certified after that can still show as open here; the city's own page for this building is linked above.

6401 23rd Ave, Brooklyn

BBL 3-06559-0010

Built: 1930
Floors: 2
Residential units: 3
Building type: Three-family dwelling
Zoning district: R4-1
Lot area: 2,100 sq ft
Floor area: 3,906 sq ft
Last sale: $1,600,000February 22, 2022

En español: 3 violaciones de Clase C abiertas (peligro inmediato) y 4 abiertas en total. La más antigua del HPD lleva 21 meses abierta, desde el 2 de enero de 2025.

Open now, most hazardous first

3
Class C, immediately hazardous. Most often Lead Paint.
Oldest open since January 2, 2025
Get these certified
1
Class B, hazardous
See it

Open violations are sitting, with little movement either way. 3 open Class C, with nothing filed or new in the last 180 days.

The original certify-by dates on the 4 open HPD violations have all passed. The latest was May 2, 2025. The report prints the date beside each one.

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3 open Class C. The oldest open HPD violation was filed January 2, 2025.

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The case file on a building like this names who is responsible on HPD's registration and how to reach them. We prepare them for firms on our pilot, ranked by how much hazardous work is open.

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HPD takes complaints from tenants through 311.

For a letter to your landlord or a housing court case, the report lists every open violation here, each in the city's own words with the date on its notice. Get the report, $19

DOB permits: DOB NOW lists 2 work permits here, the newest issued March 15, 2022, for Plumbing work.
Plumbing, issued March 15, 2022, signed off.
General Construction, issued March 14, 2022, signed off.
Bedbug report: Filed July 9, 2026, for the year to October 31, 2025. Buildings with 3 or more apartments file one with HPD every year.

Open violations by class. A party is named only where the building's HPD registration covers the date a violation was filed.

Filed	Category	Status	Number
Class C	3 open most often Lead Paint
March 11, 2025	Fire Safety	Notice sent	17760039
January 2, 2025	Lead Paint	Notice sent	17743765
January 2, 2025	Lead Paint	Notice sent	17743764
Class B	1 open
March 11, 2025	Lead Paint	Notice sent	17760038

The full report on 6401 23rd Ave, Brooklyn

All 4 open violations, each with the city's own words and the date on its notice.
What the one city status here means, and how many of these carry it.
How it compares with the 223,260 Brooklyn buildings with 1 to 5 apartments.
All 2 DOB NOW work permits, with job numbers and each job's estimated cost.
Every other record on this page, on a cover you can forward.

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