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ViolationScout16 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?
Buildings637 Hawthorne Street, BrooklynCurrent through

637 Hawthorne St, Brooklyn

BBL 3-04818-0069

En español: 16 violaciones de Clase C abiertas (peligro inmediato) y 79 abiertas en total.

Open violations are sitting, with little movement either way. 16 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?

16 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.

Request a sample file

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, opened December 13, 2022.
HPD emergency repair order
1 completed HPD emergency repair order since September 28, 2023: a general construction order, opened April 14, 2026, awarded for $2,000.

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

FiledCategoryStatusNumber
Class C16 open most often Heat / Hot Water
Notice sent19236989
Notice sent19229793
Notice sent19224009
Heat / Hot WaterNotice sent19219407
Notice sent19219406
Heat / Hot WaterNotice sent17698232
MoldNotice sent to tenant17292574
MoldDefect letter sent16655540
Heat / Hot WaterNotice sent16606390
Heat / Hot WaterNotice sent16592598
Heat / Hot WaterNotice sent16585784
Not complied with16569824
MoldNotice sent to tenant17292573
Heat / Hot WaterNotice sent16549342
Not complied with16285089
Not complied with16284532
Class B63 open most often Vermin / Infestation
Notice sent19236991
Notice sent19236990
Notice sent19229798
Notice sent19229797
Notice sent19229796
Notice sent19229795
Vermin / InfestationNotice sent19224010
Notice sent18911534
Notice sent18911533
Notice sent18911532
Heat / Hot WaterNotice sent18911531
Notice sent18911530
Notice sent18038506
Notice sent17750725
Notice sent17750724
Vermin / InfestationNotice sent17698233
Fire SafetyNot complied with16655545
Not complied with16655544
Not complied with16655539
Vermin / InfestationNot complied with16655537
Not complied with16655536
Vermin / InfestationNot complied with16655535
Notice sent16640846
MoldNo access to reinspect (first try)17023661
Vermin / InfestationNot complied with16635738
Vermin / InfestationNot complied with16635737
Notice sent16635734
MoldDefect letter sent16635733
Not complied with16635732
Not complied with16635731
Fire SafetyNot complied with16635730
Notice sent16632166
Notice sent16628074
Notice sent16628073
Not complied with16628071
MoldDefect letter sent16628070
Not complied with16628069
MoldNot complied with16993445
MoldDefect letter sent16609106
Not complied with16609105
Not complied with16609102
Vermin / InfestationNot complied with16609101
Vermin / InfestationNot complied with16609100
Fire SafetyNot complied with16609099
Not complied with16592604
Not complied with16592603
Fire SafetyNot complied with16592602
Vermin / InfestationNot complied with16592601
Vermin / InfestationNot complied with16592600
Notice sent16592597
Notice sent16585786
Fire SafetyNot complied with16549341
Not complied with16549340
Vermin / InfestationNot complied with16549336
Not complied with16549335
Not complied with16549334
Vermin / InfestationNot complied with16549333
Notice sent16510778
MoldNot complied with16701922
Not complied with16284536
Not complied with16284534
Not complied with16284533
Not complied with16284531

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

Vermin and pests in Brooklyn

Nearby buildings

Questions about this building

Does 637 Hawthorne Street, Brooklyn have open violations?

Yes. 637 Hawthorne Street, Brooklyn had 79 open violations on September 26, 2026: 79 from HPD. 16 are Class C, the class HPD treats as immediately hazardous.

Is 637 Hawthorne Street, Brooklyn getting better or worse?

Open violations are sitting, with little movement either way. 16 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 26, 2026. It compares certifications filed with new Class C violations, and it describes what happened, not what anyone intends.

Is 637 Hawthorne Street, Brooklyn in housing court?

Yes. 1 open housing court case, opened December 13, 2022. 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 637 Hawthorne Street, Brooklyn marked completed?

Yes. 1 completed HPD emergency repair order since September 28, 2023: a general construction order, opened April 14, 2026, awarded for $2,000. 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 Hawthorne Street, Brooklyn built?

The city's record gives 1940 as the year 637 Hawthorne 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 2 floors.

How many apartments does 637 Hawthorne Street, Brooklyn have?

The Department of City Planning's PLUTO tax-lot file lists 3 residential units at 637 Hawthorne 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, 637 Hawthorne St, Brooklyn: 16 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-hawthorne-street-brooklyn

How we count: /method.

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