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ViolationScout21 open Class C, with nothing filed or new in the last 180 days.Is this your building?
Buildings5121 2 Avenue, BrooklynCurrent through

5121 2nd Ave, Brooklyn

BBL 3-00797-0002

En español: 21 violaciones de Clase C abiertas (peligro inmediato) y 34 abiertas en total. La más antigua del HPD lleva 9 años abierta, desde el 12 de septiembre de 2017.

Open violations are sitting, with little movement either way. 21 open Class C, with nothing filed or new in the last 180 days.

The oldest open HPD violation has been open 9 years, since September 12, 2017.

Since September 29, 2023, certifications were filed on 23 Class C violations: 18 by the original certify-by date, 5 after it. HPD now marks 3 of them Invalid Certification. How certification works

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21 open Class C and an OATH hearing on February 22, 2027. The oldest open HPD violation was filed September 12, 2017.

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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.

OATH hearings
A hearing on a DOB summons is set for February 22, 2027.
DOB permits
1 DOB work permit in effect, for Plumbing work, issued October 29, 2025.
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.

FiledCategoryStatusNumberRegistered party when filed
Class C21 open most often Heat / Hot Water
Notice sent18560002Spencer Operating Corp
Heat / Hot WaterNotice sent18542044Spencer Operating Corp
Invalid certification18486031Spencer Operating Corp
Heat / Hot WaterInvalid certification18486030Spencer Operating Corp
Heat / Hot WaterInvalid certification18486026Spencer Operating Corp
Heat / Hot WaterNot complied with18316348Spencer Operating Corp
Certified late18168789
Heat / Hot WaterCertified late18139541
Certified late18129119
Heat / Hot WaterNotice sent18129118
The report lists all 21, each with the city's own words and the date on its notice. What the report adds
Class B10 open most often Fire Safety
Notice sent19175401Spencer Operating Corp
Notice sent19175398Spencer Operating Corp
Notice sent19175394Spencer Operating Corp
Fire SafetyNotice sent19175392Spencer Operating Corp
Fire SafetyNotice sent19175391Spencer Operating Corp
Notice sent19175389Spencer Operating Corp
Certified late18093130
Certified late18093128
Fire SafetyCertified late18093125
Fire SafetyCertified late18093124
OATH/ECB3 open most often Construction
Construction, Class 2Hearing pending39155774N
Construction, Class 2Found in violation39155773L
Construction, Class 1Decided by default39153789R

The full report on 5121 2nd Ave, Brooklyn

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The most common category among the open records here is heat and hot water.

Heat and hot water in Brooklyn

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Questions about this building

Does 5121 2 Avenue, Brooklyn have open violations?

Yes. 5121 2 Avenue, Brooklyn had 34 open violations on September 27, 2026: 31 from HPD and 3 from OATH/ECB. 21 are Class C, the class HPD treats as immediately hazardous. The oldest open HPD violation has been open 9 years, since September 12, 2017.

Is 5121 2 Avenue, Brooklyn getting better or worse?

Open violations are sitting, with little movement either way. 21 open Class C, with nothing filed or new in the last 180 days. That window ends September 27, 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 5121 2 Avenue, Brooklyn?

Since September 29, 2023, certifications were filed on 23 Class C violations: 18 by the original certify-by date, 5 after it. HPD now marks 3 of them Invalid 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 5121 2 Avenue, Brooklyn have an OATH hearing coming up?

Yes. A hearing on a DOB summons is set for February 22, 2027. DOB summonses are heard at OATH, the city's hearings office, and OATH can move a hearing to a later date. When nobody shows up, the summons is decided by default, the costliest way one ends.

Are any DOB work permits in effect at 5121 2 Avenue, Brooklyn?

Yes. 1 DOB work permit in effect, for Plumbing work, issued October 29, 2025. A permit in effect allows the work it names. It does not mean the work has started or finished, or that it fixes any violation on this page.

When did 5121 2 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 5121 2 Avenue, Brooklyn built?

The city's record gives 1931 as the year 5121 2 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 5121 2 Avenue, Brooklyn have?

The Department of City Planning's PLUTO tax-lot file lists 6 residential units at 5121 2 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 hearing dates, DOB NOW work permits, HPD's annual bedbug reports and the city's PLUTO tax-lot file. This page is current through September 27, 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 hearing dates, DOB NOW work permits, HPD's annual bedbug reports and the city's PLUTO tax-lot file. 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, 5121 2nd Ave, Brooklyn: 21 open Class C, from New York City's HPD violation and OATH/ECB hearing data. Figures through September 27, 2026. https://violationscout.com/building/5121-2-avenue-brooklyn

How we count: /method.

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