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ViolationScout1 open Class C, with 0 certifications filed and 1 new Class C in the last 180 days, too few to call a direction.Your building
Buildings520 West 144 Street, ManhattanCurrent through

520 West 144th St, Manhattan

BBL 1-02075-0043

Built
1910
Floors
6
Residential units
30
Building type
Elevator building
Zoning district
R7A
Lot area
8,743 sq ft
Floor area
45,000 sq ft
Last sale
$6,539,584

En español: 1 violación de Clase C abierta (peligro inmediato). La más antigua del HPD lleva 4 meses abierta, desde el 12 de mayo de 2026.

Open now

  1. 1

    Class C, immediately hazardous

    Oldest open since

    Get it certified

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

Since October 12, 2023, a certification was filed on 1 Class C violation, by the original certify-by date. How certification works

The original certify-by date on the open HPD violation, June 14, 2026, has passed. The report prints it beside the violation.

Is this your building?

1 open Class C. The oldest open HPD violation was filed May 12, 2026.

A firm we work with can take these on. We reply within one business day with the firm's name. You decide whether to talk to them. 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.

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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.

For a letter to your landlord or a housing court case, the report lists every open violation here, each in the city's own words with the date on its notice. Get the report, $19

OATH/ECB summonses
1 DOB summons here since January 1, 2019, with $625 in penalties imposed. 1 judgment docketed, on October 31, 2020. A docketed judgment shows up in a title search.
  • May 26, 2020, DOB: Failure to maintain elevator or conveying system. In violation, $625 penalty imposed.
DOB violations
1 active DOB violation, issued January 13, 1997.
Housing court
11 housing court cases here since 2007.
DOB permits
DOB NOW lists 1 work permit here: Sidewalk Shed, issued February 27, 2025, expired February 27, 2026.
Energy benchmarking
ENERGY STAR score 99 for 2024, against a median of 67 for Multifamily Housing that year.
Local Law 97
Covered from 2035 as an income-restricted building (DOB's list, March 1, 2026).
Boiler inspection
Inspected February 25, 2026. Boilers in buildings with 6 or more apartments are inspected every calendar year.
Bedbug report
Filed December 19, 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).
Tax exemption
Has an Article XI tax exemption (DOF 2026/27 roll).

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 C1 open
Vermin / InfestationNotice sent to tenant18932885520 WEST 144TH STREET HDFC

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Questions about this building

Does 520 West 144 Street, Manhattan have open violations?

Yes. 520 West 144 Street, Manhattan had 1 open violation on October 10, 2026: 1 from HPD. 1 is Class C, the class HPD treats as immediately hazardous. The oldest open HPD violation has been open 4 months, since May 12, 2026.

Is 520 West 144 Street, Manhattan getting better or worse?

Open violations are sitting, with little movement either way. 1 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 October 10, 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 520 West 144 Street, Manhattan?

Since October 12, 2023, a certification was filed on 1 Class C violation, by 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 520 West 144 Street, Manhattan have active DOB violations?

Yes. 1 active DOB violation, issued January 13, 1997. 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.

Has 520 West 144 Street, Manhattan been in housing court?

Yes. 11 housing court cases here since 2007. 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.

What is the ENERGY STAR score for 520 West 144 Street, Manhattan?

ENERGY STAR score 99 for 2024, against a median of 67 for Multifamily Housing that year. Buildings over 25,000 square feet report their energy use to the city every year under Local Law 84. The ENERGY STAR score runs from 1 to 100 and compares a building with similar ones nationwide; 50 is the national median. The score is the one the city publishes, and this page never estimates a Local Law 97 emissions penalty. A lot that reported several properties in one year is not scored here.

When was the boiler at 520 West 144 Street, Manhattan last inspected?

On February 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 520 West 144 Street, Manhattan last file its bedbug report?

On December 19, 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 520 West 144 Street, Manhattan covered by Local Law 97?

Yes. It is on DOB's Local Law 97 covered buildings list. Covered from 2035 as an income-restricted building (DOB's list, March 1, 2026). Local Law 97 sets greenhouse gas limits for most New York City buildings over 25,000 square feet, and DOB's covered buildings list says which path each building is on. The list reflects DOB's records, which owners can ask DOB to correct. This page never estimates a penalty or says whether a building complies.

Is 520 West 144 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.

Does 520 West 144 Street, Manhattan have a property tax exemption?

The building has an Article XI tax exemption on DOF's 2026/27 roll. An exemption lowers a property's tax bill by reducing its assessed value.

When was 520 West 144 Street, Manhattan built?

The city's record gives 1910 as the year 520 West 144 Street, Manhattan was built, in the Department of City Planning's PLUTO tax-lot file. The same file classes it as an elevator building with 6 floors.

How many apartments does 520 West 144 Street, Manhattan have?

The Department of City Planning's PLUTO tax-lot file lists 30 residential units at 520 West 144 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 OATH/ECB summonses from DOB and FDNY, DOB violations, HPD's housing court cases, the Rent Guidelines Board's stabilized-building lists, DOF's exemption rolls, DOB NOW work permits, Local Law 84 energy reports, DOB boiler inspection reports, HPD's annual bedbug reports, DOB's Local Law 97 covered buildings list, the city's PLUTO tax-lot file and DOF's property sales records. This page is current through October 10, 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 OATH/ECB summonses from DOB and FDNY, DOB violations, HPD's housing court cases, the Rent Guidelines Board's stabilized-building lists, DOF's exemption rolls, DOB NOW work permits, Local Law 84 energy reports, DOB boiler inspection reports, HPD's annual bedbug reports, DOB's Local Law 97 covered buildings list, the city's PLUTO tax-lot file and DOF's property sales records. 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, 520 West 144th St, Manhattan: 30 units, 1 open Class C, from New York City's HPD violation and OATH/ECB hearing data. Figures through October 10, 2026. https://violationscout.com/building/520-west-144-street-manhattan

How we count: /method.

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