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ViolationScout9 certifications filed and 12 new Class C in the last 180 days, neither far ahead.Is this your building?
Buildings531 Lenox Avenue, ManhattanCurrent through

531 Lenox Ave, Manhattan

BBL 1-01921-0034

En español: 25 violaciones de Clase C abiertas (peligro inmediato) y 92 abiertas en total. La más antigua del HPD lleva 48 años abierta, desde el 18 de mayo de 1978.

Certifications are being filed about as fast as new violations come in. 9 certifications filed and 12 new Class C in the last 180 days, neither far ahead.

The oldest open HPD violation has been open 48 years, since May 18, 1978.

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25 open Class C. The oldest open HPD violation was filed May 18, 1978.

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HPD takes complaints from tenants through 311.

DOB violations
3 active DOB violations, most of them for boiler filings under Local Law 62/91. The newest was issued January 6, 2006.
Housing court
3 open housing court cases, most of them tenant actions. The newest opened April 22, 2026.
Bedbug report
Filed December 30, 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).
HPD emergency repair orders
3 completed HPD emergency repair orders since September 29, 2023, awarded for $1,139 in total. The most recent of the 3, a general construction order, was opened February 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 C25 open most often Vermin / Infestation
Heat / Hot WaterNotice sent19072550BUFNY II ASSOCIATES, L.P.
Vermin / InfestationNotice sent to tenant19072536BUFNY II ASSOCIATES, L.P.
Fire SafetyNotice sent19072534BUFNY II ASSOCIATES, L.P.
Vermin / InfestationNotice sent to tenant18878582BUFNY II ASSOCIATES, L.P.
Vermin / InfestationNotice sent18827381BUFNY II ASSOCIATES, L.P.
Notice sent18827360BUFNY II ASSOCIATES, L.P.
Notice sent18827359BUFNY II ASSOCIATES, L.P.
Vermin / InfestationNotice sent to tenant18827354BUFNY II ASSOCIATES, L.P.
Notice sent18827350BUFNY II ASSOCIATES, L.P.
Vermin / InfestationNotice sent to tenant18827344BUFNY II ASSOCIATES, L.P.
The report lists all 25, each with the city's own words and the date on its notice. What the report adds
Class B67 open most often Fire Safety
Notice sent18878585BUFNY II ASSOCIATES, L.P.
Notice sent18878584BUFNY II ASSOCIATES, L.P.
Notice sent18878583BUFNY II ASSOCIATES, L.P.
Notice sent18878581BUFNY II ASSOCIATES, L.P.
Notice sent18827379BUFNY II ASSOCIATES, L.P.
Notice sent18827378BUFNY II ASSOCIATES, L.P.
Notice sent18827377BUFNY II ASSOCIATES, L.P.
Notice sent18827376BUFNY II ASSOCIATES, L.P.
Notice sent18827375BUFNY II ASSOCIATES, L.P.
Notice sent18827374BUFNY II ASSOCIATES, L.P.
The report lists all 67, each with the city's own words and the date on its notice. What the report adds

The full report on 531 Lenox Ave, Manhattan

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Questions about this building

Does 531 Lenox Avenue, Manhattan have open violations?

Yes. 531 Lenox Avenue, Manhattan had 92 open violations on September 27, 2026: 92 from HPD. 25 are Class C, the class HPD treats as immediately hazardous. The oldest open HPD violation has been open 48 years, since May 18, 1978.

Is 531 Lenox Avenue, Manhattan getting better or worse?

Certifications are being filed about as fast as new violations come in. 9 certifications filed and 12 new Class C in the last 180 days, neither far ahead. That window ends September 27, 2026. It compares certifications filed with new Class C violations, and it describes what happened, not what anyone intends.

Does 531 Lenox Avenue, Manhattan have active DOB violations?

Yes. 3 active DOB violations, most of them for boiler filings under Local Law 62/91. The newest was issued January 6, 2006. 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.

Is 531 Lenox Avenue, Manhattan in housing court?

Yes. 3 open housing court cases, most of them tenant actions. The newest opened April 22, 2026. 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 531 Lenox Avenue, Manhattan marked completed?

Yes. 3 completed HPD emergency repair orders since September 29, 2023, awarded for $1,139 in total. The most recent of the 3, a general construction order, was opened February 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 did 531 Lenox Avenue, Manhattan last file its bedbug report?

On December 30, 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 531 Lenox Avenue, Manhattan 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 531 Lenox Avenue, Manhattan built?

The city's record gives 1910 as the year 531 Lenox Avenue, Manhattan 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 531 Lenox Avenue, Manhattan have?

The Department of City Planning's PLUTO tax-lot file lists 10 residential units at 531 Lenox Avenue, Manhattan. 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, HPD's housing court cases, the Rent Guidelines Board's stabilized-building lists, HPD emergency repair orders, 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, HPD's housing court cases, the Rent Guidelines Board's stabilized-building lists, HPD emergency repair orders, 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, 531 Lenox Ave, Manhattan: 25 open Class C, from New York City's HPD violation and OATH/ECB hearing data. Figures through September 27, 2026. https://violationscout.com/building/531-lenox-avenue-manhattan

How we count: /method.

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