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ViolationScout14 new Class C against 2 certifications filed in the last 180 days.Is this your building?
Buildings509 West 135 Street, ManhattanCurrent through

509 West 135th St, Manhattan

BBL 1-01988-0098

En español: 16 violaciones de Clase C abiertas (peligro inmediato) y 30 abiertas en total. La más antigua del HPD lleva 7 años abierta, desde el 15 de mayo de 2019.

New violations are coming in faster than certifications are filed. 14 new Class C against 2 certifications filed in the last 180 days.

The oldest open HPD violation has been open 7 years, since May 15, 2019.

Since September 29, 2023, certifications were filed on 23 Class C violations: 22 by the original certify-by date, 1 after it. How certification works

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16 open Class C. The oldest open HPD violation was filed May 15, 2019.

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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
4 active DOB violations, most of them for construction. The newest was issued May 22, 1995.
Boiler inspection
Inspected March 25, 2026. Boilers in buildings with 6 or more apartments are inspected every calendar year.
Bedbug report
Filed August 7, 2026, 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 order
1 completed HPD emergency repair order since September 29, 2023: a general construction order, opened December 7, 2023, awarded for $587.

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 C16 open most often Heat / Hot Water
Fire SafetyNotice sent19237539
Heat / Hot WaterNotice sent19237538
Heat / Hot WaterNotice sent19237537
Heat / Hot WaterNotice sent19237536
Notice sent19235817
Heat / Hot WaterNotice sent19235816
Heat / Hot WaterNotice sent19235815
Vermin / InfestationNotice sent to tenant19235813
Vermin / InfestationNotice sent to tenant19235812
Heat / Hot WaterNotice sent19235811
The report lists all 16, each with the city's own words and the date on its notice. What the report adds
Class B14 open most often Fire Safety
Notice sent19235814
Notice sent19103422AMSTERDAM 135, LLC
Invalid certification19103420AMSTERDAM 135, LLC
Notice sent19103419AMSTERDAM 135, LLC
Notice sent19103417AMSTERDAM 135, LLC
Notice sent19103416AMSTERDAM 135, LLC
Notice sent19103415AMSTERDAM 135, LLC
Notice sent19103414AMSTERDAM 135, LLC
Notice sent18997693AMSTERDAM 135, LLC
Notice sent18997692AMSTERDAM 135, LLC
The report lists all 14, each with the city's own words and the date on its notice. What the report adds

The full report on 509 West 135th St, Manhattan

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The most common category among the open records here is heat and hot water.

Heat and hot water in Manhattan

Other buildings on this tax block

Nearby buildings

Questions about this building

Does 509 West 135 Street, Manhattan have open violations?

Yes. 509 West 135 Street, Manhattan had 30 open violations on September 27, 2026: 30 from HPD. 16 are Class C, the class HPD treats as immediately hazardous. The oldest open HPD violation has been open 7 years, since May 15, 2019.

Is 509 West 135 Street, Manhattan getting better or worse?

New violations are coming in faster than certifications are filed. 14 new Class C against 2 certifications filed in the last 180 days. 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 509 West 135 Street, Manhattan?

Since September 29, 2023, certifications were filed on 23 Class C violations: 22 by the original certify-by date, 1 after it. 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 509 West 135 Street, Manhattan have active DOB violations?

Yes. 4 active DOB violations, most of them for construction. The newest was issued May 22, 1995. 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.

Are any HPD emergency repair orders at 509 West 135 Street, Manhattan marked completed?

Yes. 1 completed HPD emergency repair order since September 29, 2023: a general construction order, opened December 7, 2023, awarded for $587. 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 the boiler at 509 West 135 Street, Manhattan last inspected?

On March 25, 2026. DOB requires a boiler in a building with 6 or more apartments to be inspected once every calendar year, with the report filed within 14 days of the inspection. Low-pressure boilers in residential buildings with 5 or fewer apartments are exempt.

When did 509 West 135 Street, Manhattan last file its bedbug report?

On August 7, 2026, 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 509 West 135 Street, 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 509 West 135 Street, Manhattan built?

The city's record gives 1910 as the year 509 West 135 Street, 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 509 West 135 Street, Manhattan have?

The Department of City Planning's PLUTO tax-lot file lists 15 residential units at 509 West 135 Street, 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, the Rent Guidelines Board's stabilized-building lists, HPD emergency repair orders, DOB boiler inspection reports, 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 emergency repair orders, DOB boiler inspection reports, 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, 509 West 135th St, Manhattan: 15 units, 16 open Class C, from New York City's HPD violation and OATH/ECB hearing data. Figures through September 27, 2026. https://violationscout.com/building/509-west-135-street-manhattan

How we count: /method.

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