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ViolationScout27 open Class C, with 0 certifications filed and 5 new Class C in the last 180 days, too few to call a direction.Is this your building?
Buildings633 Nostrand Avenue, BrooklynCurrent through

633 Nostrand Ave, Brooklyn

BBL 3-01220-0001

En español: 27 violaciones de Clase C abiertas (peligro inmediato) y 79 abiertas en total. La más antigua del HPD lleva 10 años abierta, desde el 29 de junio de 2016.

Open violations are sitting, with little movement either way. 27 open Class C, with 0 certifications filed and 5 new Class C in the last 180 days, too few to call a direction.

The oldest open HPD violation has been open 10 years, since June 29, 2016.

Since September 29, 2023, certifications were filed on 14 Class C violations: 5 by the original certify-by date, 9 after it. How certification works

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27 open Class C. The oldest open HPD violation was filed June 29, 2016.

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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
5 active DOB violations, most of them for boiler filings under Local Law 62/91. The newest was issued September 16, 1997.
DOB complaints
3 DOB complaints in the 12 months to September 25, 2026. The newest was filed July 15, 2026.
Boiler inspection
Inspected January 28, 2026. Boilers in buildings with 6 or more apartments are inspected every calendar year.
Bedbug report
Filed May 26, 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 order
1 completed HPD emergency repair order since September 29, 2023: a general construction order, opened January 9, 2025, awarded for $460.

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 C27 open most often Vermin / Infestation
Vermin / InfestationNotice sent to tenant19179188OTA 701 ST MARKS LLC
Vermin / InfestationNotice sent to tenant18808794
Vermin / InfestationNotice sent to tenant18808793
Vermin / InfestationNotice sent to tenant18808787
Vermin / InfestationNotice sent to tenant18808786
Notice sent18362670
Notice sent18362669
Fire SafetyNotice sent18250929
Notice sent18250926
Vermin / InfestationNotice sent to tenant18250925
The report lists all 27, each with the city's own words and the date on its notice. What the report adds
Class B52 open most often Fire Safety
Notice sent19179189OTA 701 ST MARKS LLC
MoldNotice sent to tenant19166644
MoldNotice sent to tenant19166643
Notice sent18808796
Fire SafetyNotice sent18808795
Notice sent18808792
Notice sent18808791
Fire SafetyNotice sent18808790
Fire SafetyNotice sent18808789
Notice sent18808785
The report lists all 52, each with the city's own words and the date on its notice. What the report adds

The full report on 633 Nostrand Ave, 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 633 Nostrand Avenue, Brooklyn have open violations?

Yes. 633 Nostrand Avenue, Brooklyn had 79 open violations on September 27, 2026: 79 from HPD. 27 are Class C, the class HPD treats as immediately hazardous. The oldest open HPD violation has been open 10 years, since June 29, 2016.

Is 633 Nostrand Avenue, Brooklyn getting better or worse?

Open violations are sitting, with little movement either way. 27 open Class C, with 0 certifications filed and 5 new Class C in the last 180 days, too few to call a direction. 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 633 Nostrand Avenue, Brooklyn?

Since September 29, 2023, certifications were filed on 14 Class C violations: 5 by the original certify-by date, 9 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.

Does 633 Nostrand Avenue, Brooklyn have active DOB violations?

Yes. 5 active DOB violations, most of them for boiler filings under Local Law 62/91. The newest was issued September 16, 1997. 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 DOB received complaints about 633 Nostrand Avenue, Brooklyn?

Yes. 3 DOB complaints in the 12 months to September 25, 2026. The newest was filed July 15, 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 633 Nostrand Avenue, Brooklyn marked completed?

Yes. 1 completed HPD emergency repair order since September 29, 2023: a general construction order, opened January 9, 2025, awarded for $460. 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 633 Nostrand Avenue, Brooklyn last inspected?

On January 28, 2026. 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 633 Nostrand Avenue, Brooklyn last file its bedbug report?

On May 26, 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 633 Nostrand Avenue, 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 633 Nostrand Avenue, Brooklyn built?

The city's record gives 1910 as the year 633 Nostrand Avenue, 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 5 floors.

How many apartments does 633 Nostrand Avenue, Brooklyn have?

The Department of City Planning's PLUTO tax-lot file lists 18 residential units at 633 Nostrand 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, DOB complaints, 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, DOB complaints, 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, 633 Nostrand Ave, Brooklyn: 27 open Class C, from New York City's HPD violation and OATH/ECB hearing data. Figures through September 27, 2026. https://violationscout.com/building/633-nostrand-avenue-brooklyn

How we count: /method.

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