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ViolationScout10 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?
Buildings502 Williams Avenue, BrooklynCurrent through

502 Williams Ave, Brooklyn

BBL 3-03818-0039

En español: 10 violaciones de Clase C abiertas (peligro inmediato) y 16 abiertas en total. La más antigua del HPD lleva 6 años abierta, desde el 9 de octubre de 2019.

Open violations are sitting, with little movement either way. 10 open Class C, with 0 certifications filed and 1 new Class C in the last 180 days, too few to call a direction.

The oldest open HPD violation has been open 6 years, since October 9, 2019.

Since September 29, 2023, a certification was filed on 1 Class C violation, after the original certify-by date. How certification works

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10 open Class C. The oldest open HPD violation was filed October 9, 2019.

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Your details stay with us, and go only to the one firm you are introduced to. No lists, no resale.

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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
1 active DOB violation, issued August 16, 1993.
Bedbug report
Filed December 2, 2025, 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).

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 C10 open most often Vermin / Infestation
Heat / Hot WaterNotice sent18795774ENY DEVELOPMENT LLC
Vermin / InfestationNotice sent to tenant18556476ENY DEVELOPMENT LLC
Notice sent18556474ENY DEVELOPMENT LLC
Vermin / InfestationNotice sent to tenant18096803
Vermin / InfestationNotice sent to tenant18096802
Vermin / InfestationNotice sent to tenant17900972
Vermin / InfestationNotice sent to tenant17900971
Fire SafetyNotice sent16741729
Vermin / InfestationNot complied with16741698
Vermin / InfestationNot complied with16741696
Class B6 open
Heat / Hot WaterNotice sent18750990ENY DEVELOPMENT LLC
Notice sent18096805
Notice sent18096804
Notice sent18096800
Notice sent18096799
Notice sent17900974

The full report on 502 Williams Ave, Brooklyn

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Usually ready within 15 minutes of payment, on your order page and by email. If it tells you nothing you did not already know, reply and we refund it.

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 502 Williams Avenue, Brooklyn have open violations?

Yes. 502 Williams Avenue, Brooklyn had 16 open violations on September 27, 2026: 16 from HPD. 10 are Class C, the class HPD treats as immediately hazardous. The oldest open HPD violation has been open 6 years, since October 9, 2019.

Is 502 Williams Avenue, Brooklyn getting better or worse?

Open violations are sitting, with little movement either way. 10 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 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 502 Williams Avenue, Brooklyn?

Since September 29, 2023, a certification was filed on 1 Class C violation, after 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.

Does 502 Williams Avenue, Brooklyn have active DOB violations?

Yes. 1 active DOB violation, issued August 16, 1993. 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.

When did 502 Williams Avenue, Brooklyn last file its bedbug report?

On December 2, 2025, 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 502 Williams 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 502 Williams Avenue, Brooklyn built?

The city's record gives 1930 as the year 502 Williams 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 4 floors.

How many apartments does 502 Williams Avenue, Brooklyn have?

The Department of City Planning's PLUTO tax-lot file lists 13 residential units at 502 Williams 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, the Rent Guidelines Board's stabilized-building lists, 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, the Rent Guidelines Board's stabilized-building lists, 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, 502 Williams Ave, Brooklyn: 10 open Class C, from New York City's HPD violation and OATH/ECB hearing data. Figures through September 27, 2026. https://violationscout.com/building/502-williams-avenue-brooklyn

How we count: /method.

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