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ViolationScout78 certifications filed against 35 new Class C in the last 180 days.Is this your building?
Buildings91 East 21 Street, BrooklynCurrent through

91 East 21st St, Brooklyn

BBL 3-05082-0091

En español: 43 violaciones de Clase C abiertas (peligro inmediato) y 129 abiertas en total. La más antigua del HPD lleva 3 años abierta, desde el 25 de octubre de 2022.

Certifications are being filed faster than new violations come in. 78 certifications filed against 35 new Class C in the last 180 days.

The oldest open HPD violation has been open 3 years, since October 25, 2022.

Since September 29, 2023, certifications were filed on 117 Class C violations: 100 by the original certify-by date, 17 after it. HPD now marks 1 of them False Certification. How certification works

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43 open Class C. The oldest open HPD violation was filed October 25, 2022.

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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 violations
2 active DOB violations. The newest was issued March 29, 2021.
Housing court
1 open housing court case, opened April 11, 2025.
Boiler inspection
Inspected October 8, 2025. Boilers in buildings with 6 or more apartments are inspected every calendar year. Need this filed?
Bedbug report
Filed January 28, 2026, for the year to October 31, 2025. Buildings with 3 or more apartments file one with HPD every year.
Rent stabilization
Has rent-stabilized apartments (2024 registration).
HPD emergency repair orders
14 completed HPD emergency repair orders since September 29, 2023, awarded for $66,383 in total. The most recent of the 14, a lead paint order, was opened July 14, 2026.

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 C43 open most often Vermin / Infestation
Vermin / InfestationNotice sent19229284
Vermin / InfestationNotice sent to tenant19184794
Fire SafetyNotice sent19184784
Vermin / InfestationNotice sent to tenant19184778
Vermin / InfestationNotice sent to tenant19184777
Vermin / InfestationNotice sent to tenant1918814791 E21 BH LLC
Vermin / InfestationNotice sent to tenant1918814591 E21 BH LLC
Vermin / InfestationNotice sent1918760691 E21 BH LLC
Vermin / InfestationNotice sent to tenant1917878091 E21 BH LLC
Vermin / InfestationCertified on time1916524991 E21 BH LLC
The report lists all 43, each with the city's own words and the date on its notice. What the report adds
Class B86 open most often Fire Safety
Notice sent19229285
Notice sent19229283
Fire SafetyNotice sent19184793
Fire SafetyNotice sent19184792
Notice sent19184791
MoldNotice sent to tenant19184790
Notice sent19184789
Notice sent19184786
Notice sent19184785
Notice sent19184783
The report lists all 86, each with the city's own words and the date on its notice. What the report adds

The full report on 91 East 21st St, Brooklyn

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The most common category among the open records here is vermin and pests.

Vermin and pests in Brooklyn

Other buildings on this tax block

Nearby buildings

Questions about this building

Does 91 East 21 Street, Brooklyn have open violations?

Yes. 91 East 21 Street, Brooklyn had 129 open violations on September 27, 2026: 129 from HPD. 43 are Class C, the class HPD treats as immediately hazardous. The oldest open HPD violation has been open 3 years, since October 25, 2022.

Is 91 East 21 Street, Brooklyn getting better or worse?

Certifications are being filed faster than new violations come in. 78 certifications filed against 35 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 91 East 21 Street, Brooklyn?

Since September 29, 2023, certifications were filed on 117 Class C violations: 100 by the original certify-by date, 17 after it. 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 91 East 21 Street, Brooklyn have active DOB violations?

Yes. 2 active DOB violations. The newest was issued March 29, 2021. 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.

Is 91 East 21 Street, Brooklyn in housing court?

Yes. 1 open housing court case, opened April 11, 2025. 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.

Are any HPD emergency repair orders at 91 East 21 Street, Brooklyn marked completed?

Yes. 14 completed HPD emergency repair orders since September 29, 2023, awarded for $66,383 in total. The most recent of the 14, a lead paint order, was opened July 14, 2026. 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 was the boiler at 91 East 21 Street, Brooklyn last inspected?

On October 8, 2025. DOB requires a boiler in a building with 6 or more apartments to be inspected once every calendar year, with the report filed within 14 days of the inspection. Low-pressure boilers in residential buildings with 5 or fewer apartments are exempt.

When did 91 East 21 Street, Brooklyn last file its bedbug report?

On January 28, 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.

Is 91 East 21 Street, Brooklyn rent stabilized?

The building has rent-stabilized apartments on its 2024 registration. That comes from the Rent Guidelines Board's list of buildings with at least one stabilized apartment registered that year. Buildings that registered late are left off, and a 421-a or J-51 building can leave stabilization when its tax benefit ends. A particular apartment's status is for NYS HCR to say.

When was 91 East 21 Street, Brooklyn built?

The city's record gives 1916 as the year 91 East 21 Street, Brooklyn was built, in the Department of City Planning's PLUTO tax-lot file. The same file classes it as a walk-up apartment building with 4 floors.

How many apartments does 91 East 21 Street, Brooklyn have?

The Department of City Planning's PLUTO tax-lot file lists 16 residential units at 91 East 21 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 violations, HPD's housing court cases, the Rent Guidelines Board's stabilized-building lists, HPD emergency repair orders, DOB boiler inspection reports, 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 violations, HPD's housing court cases, the Rent Guidelines Board's stabilized-building lists, HPD emergency repair orders, DOB boiler inspection reports, 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, 91 East 21st St, Brooklyn: 43 open Class C, from New York City's HPD violation and OATH/ECB hearing data. Figures through September 27, 2026. https://violationscout.com/building/91-east-21-street-brooklyn

How we count: /method.

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