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ViolationScout10 open Class C, with nothing filed or new in the last 180 days.Is this your building?
Buildings637 Osborn Street, BrooklynCurrent through

637 Osborn St, Brooklyn

BBL 3-03638-0025

En español: 10 violaciones de Clase C abiertas (peligro inmediato) y 22 abiertas en total.

Open violations are sitting, with little movement either way. 10 open Class C, with nothing filed or new in the last 180 days.

Is this your building?

10 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.

HPD emergency repair orders
3 completed HPD emergency repair orders since September 28, 2023, awarded for $6,855 in total. The most recent of the 3, a general construction order, was opened September 15, 2025.

Open violations by class. A party is named only where the building's HPD registration covers the date a violation was filed.

FiledCategoryStatusNumber
Class C10 open most often Vermin / Infestation
Heat / Hot WaterNotice sent18055763
Vermin / InfestationNotice sent to tenant18055755
Heat / Hot WaterNotice sent17925538
Vermin / InfestationNotice sent to tenant17800848
Vermin / InfestationNotice sent to tenant17778538
Heat / Hot WaterNotice sent17257312
Fire SafetyNotice sent17257306
Vermin / InfestationNotice sent to tenant17257304
Vermin / InfestationNotice sent to tenant17257303
Heat / Hot WaterNotice sent17257302
Class B12 open
Notice sent18055757
Notice sent18055756
Notice sent17778535
Notice sent17778534
Notice sent17257318
Notice sent17257314
Notice sent17257307
Notice sent17257305
Notice sent17257301
Notice sent17257299
Notice sent17257297
Notice sent17257296

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 637 Osborn Street, Brooklyn have open violations?

Yes. 637 Osborn Street, Brooklyn had 22 open violations on September 26, 2026: 22 from HPD. 10 are Class C, the class HPD treats as immediately hazardous.

Is 637 Osborn Street, Brooklyn getting better or worse?

Open violations are sitting, with little movement either way. 10 open Class C, with nothing filed or new in the last 180 days. That window ends September 26, 2026. It compares certifications filed with new Class C violations, and it describes what happened, not what anyone intends.

Are any HPD emergency repair orders at 637 Osborn Street, Brooklyn marked completed?

Yes. 3 completed HPD emergency repair orders since September 28, 2023, awarded for $6,855 in total. The most recent of the 3, a general construction order, was opened September 15, 2025. 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 637 Osborn Street, Brooklyn built?

The city's record gives 1930 as the year 637 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 637 Osborn Street, Brooklyn have?

The Department of City Planning's PLUTO tax-lot file lists 5 residential units at 637 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 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 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, 637 Osborn St, Brooklyn: 10 open Class C, from New York City's HPD violation and OATH/ECB hearing data. Figures through September 26, 2026. https://violationscout.com/building/637-osborn-street-brooklyn

How we count: /method.

Is this your building?