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ViolationScout8 certifications filed against 3 new Class C in the last 180 days.Is this your building?
Buildings315 West 121 Street, ManhattanCurrent through

315 West 121st St, Manhattan

BBL 1-01948-0022

En español: 16 violaciones de Clase C abiertas (peligro inmediato) y 72 abiertas en total. La más antigua del HPD lleva 7 años abierta, desde el 28 de enero de 2019.

Certifications are being filed faster than new violations come in. 8 certifications filed against 3 new Class C in the last 180 days.

The oldest open HPD violation has been open 7 years, since January 28, 2019.

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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16 open Class C. The oldest open HPD violation was filed January 28, 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
1 active DOB violation, issued June 30, 2023.
DOB complaints
1 DOB complaint in the 12 months to September 25, 2026. It was filed October 15, 2025.
Certificate of occupancy
Final, issued September 18, 2012.
Bedbug report
Filed May 4, 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).

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 Vermin / Infestation
Vermin / InfestationNotice sent to tenant19193125
Vermin / InfestationNotice sent to tenant19193124
Fire SafetyTo be reinspected19169451121st Street Realty LLC
Fire SafetyNo access to reinspect (first try)18426035
No access to reinspect (first try)18266026
Heat / Hot WaterNo access to reinspect (first try)17454622
Vermin / InfestationDefect letter sent17277129
Vermin / InfestationNo access to reinspect (first try)17277124
Vermin / InfestationNo access to reinspect (first try)17277123
No access to reinspect (first try)17277115
The report lists all 16, each with the city's own words and the date on its notice. What the report adds
Class B56 open most often Fire Safety
Notice sent19193123
Notice sent19193122
MoldNotice sent to tenant19193121
Notice sent19193120
Certified on time19169454121st Street Realty LLC
Fire SafetyCIV14 mailed19169453121st Street Realty LLC
Fire SafetyCIV14 mailed19169452121st Street Realty LLC
Notice sent19169450121st Street Realty LLC
No access to reinspect (first try)18426036
No access to reinspect (first try)18426034
The report lists all 56, each with the city's own words and the date on its notice. What the report adds

The full report on 315 West 121st St, Manhattan

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Questions about this building

Does 315 West 121 Street, Manhattan have open violations?

Yes. 315 West 121 Street, Manhattan had 72 open violations on September 27, 2026: 72 from HPD. 16 are Class C, the class HPD treats as immediately hazardous. The oldest open HPD violation has been open 7 years, since January 28, 2019.

Is 315 West 121 Street, Manhattan getting better or worse?

Certifications are being filed faster than new violations come in. 8 certifications filed against 3 new Class C 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 315 West 121 Street, Manhattan?

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.

Does 315 West 121 Street, Manhattan have active DOB violations?

Yes. 1 active DOB violation, issued June 30, 2023. 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 DOB received complaints about 315 West 121 Street, Manhattan?

Yes. 1 DOB complaint in the 12 months to September 25, 2026. It was filed October 15, 2025. Anyone can complain to DOB about a building or the work going on in it, and DOB then inspects and decides whether there is a violation. A conversion complaint says an apartment may have been added or changed without approval. It is a complaint, not a finding.

Does 315 West 121 Street, Manhattan have a certificate of occupancy?

Its latest certificate of occupancy is a final one, issued September 18, 2012. A certificate of occupancy says how a building may be used and occupied. A temporary one lets people move in while work finishes and has to be renewed until DOB issues the final one. DOB's records here start in July 2012, so an older certificate may not show.

When did 315 West 121 Street, Manhattan last file its bedbug report?

On May 4, 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 315 West 121 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 315 West 121 Street, Manhattan built?

The city's record gives 1915 as the year 315 West 121 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 315 West 121 Street, Manhattan have?

The Department of City Planning's PLUTO tax-lot file lists 20 residential units at 315 West 121 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, DOB complaints, the Rent Guidelines Board's stabilized-building lists, DOB certificates of occupancy, 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, DOB complaints, the Rent Guidelines Board's stabilized-building lists, DOB certificates of occupancy, 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, 315 West 121st St, Manhattan: violations, from New York City's HPD violation and OATH/ECB hearing data. Figures through September 27, 2026. https://violationscout.com/building/315-west-121-street-manhattan

How we count: /method.

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