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ViolationScout10 certifications filed against 2 new Class C in the last 180 days.Is this your building?
Buildings381 Grove Street, BrooklynCurrent through

381 Grove St, Brooklyn

BBL 3-03319-0040

En español: 18 violaciones de Clase C abiertas (peligro inmediato) y 38 abiertas en total. La más antigua del HPD lleva 42 años abierta, desde el 18 de julio de 1984.

Certifications are being filed faster than new violations come in. 10 certifications filed against 2 new Class C in the last 180 days.

The oldest open HPD violation has been open 42 years, since July 18, 1984.

Since September 29, 2023, certifications were filed on 7 Class C violations: 4 by the original certify-by date, 3 after it. How certification works

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18 open Class C. The oldest open HPD violation was filed July 18, 1984.

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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.

DOB complaints
6 DOB complaints, 1 of them conversion complaint, in the 12 months to September 25, 2026. The newest was filed August 29, 2026.
Bedbug report
Filed December 25, 2025, for the year to October 31, 2025. Buildings with 3 or more apartments file one with HPD every year.
HPD emergency repair order
1 completed HPD emergency repair order since September 29, 2023: a general construction order, opened March 12, 2025, awarded for $200.

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 C18 open most often Fire Safety
Fire SafetyNot complied with18850131Adar B Management LLC
MoldCertified late18751992Adar B Management LLC
Fire SafetyNotice sent17789171
Fire SafetyNotice sent17739305
Vermin / InfestationNotice sent to tenant17739302
Fire SafetyCertified late17704441
Heat / Hot WaterNotice sent17704438
Heat / Hot WaterNotice sent17704437
Vermin / InfestationNotice sent to tenant17688213
Fire SafetyCertified late17688209
The report lists all 18, each with the city's own words and the date on its notice. What the report adds
Class B20 open most often Fire Safety
Notice sent19146760Adar B Management LLC
Notice sent19146759Adar B Management LLC
CIV14 mailed19146758Adar B Management LLC
Fire SafetyNotice sent17739304
Fire SafetyNotice sent17739303
Notice sent17739301
Notice sent17704443
Fire SafetyNotice sent17704440
Fire SafetyNotice sent17704439
Certified late17688215
The report lists all 20, each with the city's own words and the date on its notice. What the report adds

The full report on 381 Grove St, Brooklyn

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Questions about this building

Does 381 Grove Street, Brooklyn have open violations?

Yes. 381 Grove Street, Brooklyn had 38 open violations on September 27, 2026: 38 from HPD. 18 are Class C, the class HPD treats as immediately hazardous. The oldest open HPD violation has been open 42 years, since July 18, 1984.

Is 381 Grove Street, Brooklyn getting better or worse?

Certifications are being filed faster than new violations come in. 10 certifications filed against 2 new Class C 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 381 Grove Street, Brooklyn?

Since September 29, 2023, certifications were filed on 7 Class C violations: 4 by the original certify-by date, 3 after it. 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.

Has DOB received complaints about 381 Grove Street, Brooklyn?

Yes. 6 DOB complaints, 1 of them conversion complaint, in the 12 months to September 25, 2026. The newest was filed August 29, 2026. Anyone can complain to DOB about a building or the work going on in it, and DOB then inspects and decides whether there is a violation. A conversion complaint says an apartment may have been added or changed without approval. It is a complaint, not a finding.

Are any HPD emergency repair orders at 381 Grove Street, Brooklyn marked completed?

Yes. 1 completed HPD emergency repair order since September 29, 2023: a general construction order, opened March 12, 2025, awarded for $200. HPD orders an emergency repair when a hazardous condition cited in a violation, or in another agency's emergency order, is not corrected, and does the work itself or through a contractor. The amounts are what the orders were awarded for, not a bill: this page does not show what was charged to the property or whether it was paid. Orders for lab tests, such as dust-wipe and asbestos samples, are not counted.

When did 381 Grove Street, Brooklyn last file its bedbug report?

On December 25, 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 381 Grove Street, Brooklyn built?

The city's record gives 1931 as the year 381 Grove Street, 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 3 floors.

How many apartments does 381 Grove Street, Brooklyn have?

The Department of City Planning's PLUTO tax-lot file lists 3 residential units at 381 Grove Street, 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 complaints, HPD emergency repair orders, 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 DOB complaints, HPD emergency repair orders, 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, 381 Grove St, Brooklyn: 18 open Class C, from New York City's HPD violation and OATH/ECB hearing data. Figures through September 27, 2026. https://violationscout.com/building/381-grove-street-brooklyn

How we count: /method.

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