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ViolationScout11 open Class C, with nothing filed or new in the last 180 days.Is this your building?
Buildings4350 Katonah Avenue, BronxCurrent through

4350 Katonah Ave, Bronx

BBL 2-03388-0001

En español: 11 violaciones de Clase C abiertas (peligro inmediato) y 24 abiertas en total. La más antigua del HPD lleva 20 años abierta, desde el 27 de septiembre de 2006.

Open violations are sitting, with little movement either way. 11 open Class C, with nothing filed or new in the last 180 days.

The oldest open HPD violation has been open 20 years, since September 27, 2006.

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

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11 open Class C. The oldest open HPD violation was filed September 27, 2006.

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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.

Energy benchmarking
ENERGY STAR score 63 for 2024, against a median of 67 for Multifamily Housing that year.
Local Law 97
Covered under Article 321, the path for certain affordable housing and houses of worship (DOB's list, March 1, 2026).
Boiler inspection
Inspected July 23, 2026. Boilers in buildings with 6 or more apartments are inspected every calendar year.
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 C11 open most often Vermin / Infestation
Notice sent17856363
Vermin / InfestationNotice sent to tenant17629547
Fire SafetyNotice sent17620541
Heat / Hot WaterNotice sent17620540
Heat / Hot WaterNotice sent17620539
Vermin / InfestationNotice sent to tenant17199905
Notice sent17199904
Fire SafetyNotice sent16948827
Vermin / InfestationNotice sent to tenant16948826
Notice sent16526880
The report lists all 11, each with the city's own words and the date on its notice. What the report adds
Class B13 open most often Fire Safety
Notice sent18990751WOODLAWN 278-305, LLC
Notice sent18990747WOODLAWN 278-305, LLC
MoldNo access to reinspect (first try)18693087WOODLAWN 278-305, LLC
Not complied with17856364
Notice sent17629546
Notice sent17629545
Fire SafetyNotice sent17620543
Fire SafetyNotice sent17620542
Vermin / InfestationNotice sent17199906
Notice sent16948825
The report lists all 13, each with the city's own words and the date on its notice. What the report adds

The full report on 4350 Katonah Ave, Bronx

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Questions about this building

Does 4350 Katonah Avenue, Bronx have open violations?

Yes. 4350 Katonah Avenue, Bronx had 24 open violations on September 27, 2026: 24 from HPD. 11 are Class C, the class HPD treats as immediately hazardous. The oldest open HPD violation has been open 20 years, since September 27, 2006.

Is 4350 Katonah Avenue, Bronx getting better or worse?

Open violations are sitting, with little movement either way. 11 open Class C, with nothing filed or new 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 4350 Katonah Avenue, Bronx?

Since September 29, 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.

What is the ENERGY STAR score for 4350 Katonah Avenue, Bronx?

ENERGY STAR score 63 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 4350 Katonah Avenue, Bronx last inspected?

On July 23, 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 4350 Katonah Avenue, Bronx 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 4350 Katonah Avenue, Bronx covered by Local Law 97?

Yes. It is on DOB's Local Law 97 covered buildings list. Covered under Article 321, the path for certain affordable housing and houses of worship (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 4350 Katonah Avenue, Bronx 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 4350 Katonah Avenue, Bronx built?

The city's record gives 1927 as the year 4350 Katonah Avenue, Bronx 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 4350 Katonah Avenue, Bronx have?

The Department of City Planning's PLUTO tax-lot file lists 57 residential units at 4350 Katonah Avenue, Bronx. 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 the Rent Guidelines Board's stabilized-building lists, Local Law 84 energy reports, DOB boiler inspection reports, HPD's annual bedbug reports, DOB's Local Law 97 covered buildings list 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 the Rent Guidelines Board's stabilized-building lists, Local Law 84 energy reports, DOB boiler inspection reports, HPD's annual bedbug reports, DOB's Local Law 97 covered buildings list 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, 4350 Katonah Ave, Bronx: 11 open Class C, from New York City's HPD violation and OATH/ECB hearing data. Figures through September 27, 2026. https://violationscout.com/building/4350-katonah-avenue-bronx

How we count: /method.

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