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ViolationScout1 open Class C, with nothing filed or new in the last 180 days.Your building
Buildings909 De Kalb Avenue, BrooklynCurrent through

909 De Kalb Ave, Brooklyn

BBL 3-01777-0041

Built
1931
Floors
4
Residential units
3
Building type
Residence with stores or offices
Zoning district
R6A
Lot area
1,560 sq ft
Floor area
5,070 sq ft
Last sale
$1,800,000

En español: 1 violación de Clase C abierta (peligro inmediato) y 5 abiertas en total. La más antigua del HPD lleva 3 años abierta, desde el 7 de septiembre de 2023.

Open now, most hazardous first

  1. 1

    Class C, immediately hazardous

    3 open counting every year, the oldest since

    Get it certified
  2. 4

    OATH/ECB summonses still active. Most often Construction.

    See the 4

Open violations are sitting, with little movement either way. 1 open Class C, with nothing filed or new in the last 180 days.

Since October 12, 2023, certifications were filed on 3 Class C violations, all 3 after the original certify-by date. How certification works

The original certify-by date on the open HPD violation, February 15, 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 September 7, 2023.

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.

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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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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

OATH/ECB summonses
5 DOB and FDNY summonses here since January 1, 2019, with $50,375 in penalties imposed. 4 of them are still active, the same 4 listed under OATH/ECB. 4 judgments docketed, the latest on July 31, 2026. A docketed judgment shows up in a title search.
  • July 29, 2025, DOB: Failure to maintain building in code-compliant manner. Decided by default, $25,000 penalty imposed.
  • April 10, 2025, DOB: Failure to maintain building in code-compliant manner. Decided by default, $12,500 penalty imposed.
  • April 10, 2025, DOB: Failure to provide unobstructed exit passageway. Decided by default, $6,250 penalty imposed.

The newest 3 of 5 summonses OATH lists here. The report lists all 5, with each outcome, the penalty imposed and any docketing date. What the report adds

How a default is vacated

DOB violations
2 active DOB violations. The newest was issued January 22, 2025.
DOB permits
DOB NOW lists 2 work permits here, the newest issued May 3, 2024, for Plumbing work.
  • Plumbing, issued May 3, 2024, signed off.
  • General Construction, issued September 22, 2023, signed off.
Certificate of occupancy
Final, issued July 18, 2017.
Bedbug report
Filed December 3, 2025, 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.

FiledCategoryStatusNumber
Class C1 open
Heat / Hot WaterCertified late17532376
OATH/ECB4 open most often Construction
Construction, Class 1Decided by default35718254K
Construction, Class 1Decided by default35716692L
Construction, Class 1Decided by default35716691J
Construction, Class 1Decided by default35686819P

The full report on 909 De Kalb Ave, Brooklyn

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Questions about this building

Does 909 De Kalb Avenue, Brooklyn have open violations?

Yes. 909 De Kalb Avenue, Brooklyn had 5 open violations on October 10, 2026: 4 from OATH/ECB and 1 from HPD. 1 is Class C, the class HPD treats as immediately hazardous. The oldest open HPD violation has been open 3 years, since September 7, 2023.

Is 909 De Kalb Avenue, Brooklyn getting better or worse?

Open violations are sitting, with little movement either way. 1 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 were certifications filed on Class C violations at 909 De Kalb Avenue, Brooklyn?

Since October 12, 2023, certifications were filed on 3 Class C violations, all 3 after the original certify-by date. 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 909 De Kalb Avenue, Brooklyn have active DOB violations?

Yes. 2 active DOB violations. The newest was issued January 22, 2025. 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.

Does 909 De Kalb Avenue, Brooklyn have a certificate of occupancy?

Its latest certificate of occupancy is a final one, issued July 18, 2017. A certificate of occupancy says how a building may be used and occupied. A temporary one lets people move in while work finishes and has to be renewed until DOB issues the final one. DOB's records here start in July 2012, so an older certificate may not show.

When did 909 De Kalb Avenue, Brooklyn last file its bedbug report?

On December 3, 2025, 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 909 De Kalb Avenue, Brooklyn built?

The city's record gives 1931 as the year 909 De Kalb Avenue, Brooklyn was built, in the Department of City Planning's PLUTO tax-lot file. The same file classes it as a residence with stores or offices with 4 floors.

How many apartments does 909 De Kalb Avenue, Brooklyn have?

The Department of City Planning's PLUTO tax-lot file lists 3 residential units at 909 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 OATH/ECB summonses from DOB and FDNY, DOB violations, DOB NOW work permits, DOB certificates of occupancy, 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 OATH/ECB summonses from DOB and FDNY, DOB violations, DOB NOW work permits, DOB certificates of occupancy, 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, 909 De Kalb Ave, Brooklyn: 3 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/909-de-kalb-avenue-brooklyn

How we count: /method.

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