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ViolationScout13 open Class C, with 0 certifications filed and 1 new Class C in the last 180 days, too few to call a direction.Is this your building?
Buildings634 Osborn Street, BrooklynCurrent through

634 Osborn St, Brooklyn

BBL 3-03637-0044

En español: 13 violaciones de Clase C abiertas (peligro inmediato) y 60 abiertas en total.

Open violations are sitting, with little movement either way. 13 open Class C, with 0 certifications filed and 1 new Class C in the last 180 days, too few to call a direction.

Since September 28, 2023, certifications were filed on 6 Class C violations, all 6 by the original certify-by date. How certification works

Is this your building?

13 open Class C.

We read every request ourselves. When a compliance firm we work with can take the building, we introduce you to that one firm. 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.

¿Es su edificio? Déjenos un correo o un teléfono. Leemos cada solicitud.

Or file it yourself: what it can hold up, and how correction is filed

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: which violations matter, and how long this kind usually takes to clear. It is not on sale yet.

See what the report covers

HPD takes complaints from tenants through 311.

Housing court
1 open housing court case.
HPD emergency repair orders
4 completed HPD emergency repair orders since September 28, 2023, awarded for $4,263 in total. The most recent of the 4, a general construction order, was opened January 19, 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 C13 open
Fire SafetyNotice sent19133124634 OSBORN LLC
Vermin / InfestationNotice sent to tenant18673503634 OSBORN LLC
Vermin / InfestationNotice sent to tenant18673502634 OSBORN LLC
Notice sent18673500634 OSBORN LLC
Heat / Hot WaterNotice sent18562042634 OSBORN LLC
Heat / Hot WaterNotice sent18562041634 OSBORN LLC
Heat / Hot WaterNotice sent18519429634 OSBORN LLC
MoldNotice sent to tenant19135172634 OSBORN LLC
Vermin / InfestationNotice sent to tenant18496836634 OSBORN LLC
Fire SafetyNotice sent18476757634 OSBORN LLC
Heat / Hot WaterNotice sent18476756634 OSBORN LLC
MoldNotice sent to tenant18476751634 OSBORN LLC
Vermin / InfestationNotice sent to tenant17933517
Class B47 open most often Fire Safety
Fire SafetyNotice sent19133123634 OSBORN LLC
Fire SafetyNotice sent19133122634 OSBORN LLC
MoldNotice sent to tenant19048129634 OSBORN LLC
Notice sent18673505634 OSBORN LLC
Notice sent18673501634 OSBORN LLC
Notice sent18562044634 OSBORN LLC
Notice sent18562043634 OSBORN LLC
Fire SafetyNotice sent18519431634 OSBORN LLC
Notice sent18519430634 OSBORN LLC
Fire SafetyNotice sent18496835634 OSBORN LLC
Fire SafetyNotice sent18496834634 OSBORN LLC
Notice sent18496833634 OSBORN LLC
Notice sent18496832634 OSBORN LLC
Notice sent18496831634 OSBORN LLC
Notice sent18496830634 OSBORN LLC
Notice sent18496829634 OSBORN LLC
Notice sent18496828634 OSBORN LLC
Notice sent18496826634 OSBORN LLC
Notice sent18496824634 OSBORN LLC
MoldNot complied with18762801634 OSBORN LLC
Notice sent18476753634 OSBORN LLC
Notice sent18476752634 OSBORN LLC
Notice sent18476750634 OSBORN LLC
Notice sent18476749634 OSBORN LLC
Notice sent18476748634 OSBORN LLC
Notice sent18476747634 OSBORN LLC
Notice sent18476746634 OSBORN LLC
Notice sent18476745634 OSBORN LLC
Notice sent18476744634 OSBORN LLC
Notice sent17933522
Notice sent17933521
Notice sent17933520
Fire SafetyNotice sent17933519
Fire SafetyNotice sent17933518
Notice sent17933516
Notice sent17933515
Notice sent16840770
Fire SafetyNotice sent16828275
Notice sent16828274
Notice sent16828271
Notice sent16751529
Fire SafetyNotice sent16751528
Fire SafetyNotice sent16751527
Notice sent16751526
Notice sent16751525
Notice sent16751524
Notice sent16751523

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Questions about this building

Does 634 Osborn Street, Brooklyn have open violations?

Yes. 634 Osborn Street, Brooklyn had 60 open violations on September 26, 2026: 60 from HPD. 13 are Class C, the class HPD treats as immediately hazardous.

Is 634 Osborn Street, Brooklyn getting better or worse?

Open violations are sitting, with little movement either way. 13 open Class C, with 0 certifications filed and 1 new Class C in the last 180 days, too few to call a direction. That window ends September 26, 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 634 Osborn Street, Brooklyn?

Since September 28, 2023, certifications were filed on 6 Class C violations, all 6 by 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.

Is 634 Osborn Street, Brooklyn in housing court?

Yes. 1 open housing court case. 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 634 Osborn Street, Brooklyn marked completed?

Yes. 4 completed HPD emergency repair orders since September 28, 2023, awarded for $4,263 in total. The most recent of the 4, a general construction order, was opened January 19, 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 634 Osborn Street, Brooklyn built?

The city's record gives 1930 as the year 634 Osborn 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 2 floors.

How many apartments does 634 Osborn Street, Brooklyn have?

The Department of City Planning's PLUTO tax-lot file lists 4 residential units at 634 Osborn 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 HPD's housing court cases, HPD emergency repair orders and the city's PLUTO tax-lot file. This page is current through September 26, 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 HPD's housing court cases, HPD emergency repair orders 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, 634 Osborn St, Brooklyn: 13 open Class C, from New York City's HPD violation and OATH/ECB hearing data. Figures through September 26, 2026. https://violationscout.com/building/634-osborn-street-brooklyn

How we count: /method.

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