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ViolationScout1 open Class C, with 4 certifications filed and 1 new Class C in the last 180 days, too few to call a direction.Your building
Buildings901 De Kalb Avenue, BrooklynCurrent through

901 De Kalb Ave, Brooklyn

BBL 3-01777-0045

Built
1931
Floors
4
Residential units
12
Building type
Walk-up building
Zoning district
R6A
Lot area
2,500 sq ft
Floor area
6,500 sq ft
Last sale
$2,525,000

En español: 1 violación de Clase C abierta (peligro inmediato). La más antigua del HPD lleva 19 años abierta, desde el 18 de febrero de 2007.

Open now

  1. 1

    Class C, immediately hazardous

    12 open counting every year, the oldest since

    Get it certified

Open violations are sitting, with little movement either way. 1 open Class C, with 4 certifications filed and 1 new Class C in the last 180 days, too few to call a direction.

Since October 12, 2023, certifications were filed on 2 Class C violations, all 2 by the original certify-by date. HPD now marks 1 of them False Certification. How certification works

The original certify-by date on the open HPD violation, June 24, 2026, has passed. The report prints it beside the violation.

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1 open Class C. The oldest open HPD violation was filed February 18, 2007.

A firm we work with can take these on. We reply within one business day with the firm's name. You decide whether to talk to them. One firm, not a list.

Your details stay with us, and go only to the one firm you are introduced to. No lists, no resale.

¿Es su edificio? Déjenos un correo o un teléfono. Leemos cada solicitud.

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Or file it yourself: what it can hold up, and how correction is filed

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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The building report reads this record for you: every open violation in the city's own words, what each status means, and how the building compares with others its size. Usually ready within 15 minutes of payment.

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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 violations
1 active DOB violation, issued August 16, 1993.
Housing court
2 housing court cases here since 2009, most of them tenant actions.
DOB permits
DOB NOW lists 2 work permits here, the newest issued November 26, 2025, for General Construction work.
  • General Construction, issued November 26, 2025, signed off.
  • Sidewalk Shed, issued November 19, 2025, signed off.
Bedbug report
Filed April 14, 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.

FiledCategoryStatusNumberRegistered party when filed
Class C1 open
Fire SafetyFalse certification18983234DEKALB OWNERS LLC

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Questions about this building

Does 901 De Kalb Avenue, Brooklyn have open violations?

Yes. 901 De Kalb Avenue, Brooklyn had 1 open violation on October 10, 2026: 1 from HPD. 1 is Class C, the class HPD treats as immediately hazardous. The oldest open HPD violation has been open 19 years, since February 18, 2007.

Is 901 De Kalb Avenue, Brooklyn getting better or worse?

Open violations are sitting, with little movement either way. 1 open Class C, with 4 certifications filed and 1 new Class C in the last 180 days, too few to call a direction. 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 were certifications filed on Class C violations at 901 De Kalb Avenue, Brooklyn?

Since October 12, 2023, certifications were filed on 2 Class C violations, all 2 by the original certify-by date. HPD now marks 1 of them False Certification. A certification is the filing, dated when it was made, not HPD's acceptance of it. It is compared with the original certify-by date on the notice. A granted postponement moves that date and the city's data keeps only the first, so a certification counted after it may still have met a postponed date.

Does 901 De Kalb Avenue, Brooklyn have active DOB violations?

Yes. 1 active DOB violation, issued August 16, 1993. The Department of Buildings writes these separately from HPD's housing violations, for things like boilers, elevators, facades, construction and energy filings. Each one stays active until DOB resolves or dismisses it.

Has 901 De Kalb Avenue, Brooklyn been in housing court?

Yes. 2 housing court cases here since 2009, most of them tenant actions. HPD takes buildings to housing court to get violations fixed and heat and hot water restored, and it joins tenants' own repair cases, called tenant actions. A case stays open until the court closes it.

When did 901 De Kalb Avenue, Brooklyn last file its bedbug report?

On April 14, 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 901 De Kalb Avenue, Brooklyn built?

The city's record gives 1931 as the year 901 De Kalb Avenue, Brooklyn was built, in the Department of City Planning's PLUTO tax-lot file. The same file classes it as a walk-up building with 4 floors.

How many apartments does 901 De Kalb Avenue, Brooklyn have?

The Department of City Planning's PLUTO tax-lot file lists 12 residential units at 901 De Kalb 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 violations, HPD's housing court cases, 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.

Sources. HPD housing violations and OATH/ECB hearing results, plus DOB violations, HPD's housing court cases, DOB NOW work permits, HPD's annual bedbug reports, the city's PLUTO tax-lot file and DOF's property sales records. Counts cover HPD Class B and C violations from the last 3 years that HPD still shows open, and OATH/ECB summonses from the same 3 years that the city still shows active. The city's own pages can show more, never fewer.

Cite this page

ViolationScout, 901 De Kalb Ave, Brooklyn: 12 units, 1 open Class C, from New York City's HPD violation and OATH/ECB hearing data. Figures through October 10, 2026. https://violationscout.com/building/901-de-kalb-avenue-brooklyn

How we count: /method.

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