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ViolationScout18 certifications filed against 6 new Class C in the last 180 days.Is this your building?
Buildings121 Seaman Avenue, ManhattanCurrent through

121 Seaman Ave, Manhattan

BBL 1-02240-0006

En español: 10 violaciones de Clase C abiertas (peligro inmediato) y 22 abiertas en total. La más antigua del HPD lleva 23 meses abierta, desde el 17 de octubre de 2024.

Certifications are being filed faster than new violations come in. 18 certifications filed against 6 new Class C in the last 180 days.

The oldest open HPD violation has been open 23 months, since October 17, 2024.

Since September 29, 2023, certifications were filed on 6 Class C violations, all 6 by the original certify-by date. How certification works

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10 open Class C. The oldest open HPD violation was filed October 17, 2024.

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HPD takes complaints from tenants through 311.

DOB violations
1 active DOB violation, issued December 1, 2021.
DOB complaints
5 DOB complaints in the 12 months to September 25, 2026. The newest was filed August 7, 2026.
Local Law 97
Covered from 2026 as a rent-regulated building (DOB's list, March 1, 2026).
Boiler inspection
Inspected September 15, 2026. Boilers in buildings with 6 or more apartments are inspected every calendar year.
Bedbug report
Filed December 26, 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
2 completed HPD emergency repair orders since September 29, 2023, awarded for $5,600 in total. The most recent of the 2, a general construction order, was opened October 4, 2025.

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 C10 open
Vermin / InfestationNotice sent to tenant19186586121 SEAMAN AVENUE, LLC
Heat / Hot WaterNo access to reinspect (first try)19079113121 SEAMAN AVENUE, LLC
No access to reinspect (first try)18937075121 SEAMAN AVENUE, LLC
Heat / Hot WaterNo access to reinspect (first try)18937073121 SEAMAN AVENUE, LLC
Fire SafetyTo be reinspected18947429121 SEAMAN AVENUE, LLC
Heat / Hot WaterNo access to reinspect (first try)18911291121 SEAMAN AVENUE, LLC
No access to reinspect (first try)18616687121 SEAMAN AVENUE, LLC
Vermin / InfestationNot complied with18175685
Vermin / InfestationNot complied with17614992
Not complied with17353062
Class B8 open
Certified on time19186712121 SEAMAN AVENUE, LLC
No access to reinspect (first try)18937082121 SEAMAN AVENUE, LLC
No access to reinspect (first try)18937081121 SEAMAN AVENUE, LLC
No access to reinspect (first try)18937080121 SEAMAN AVENUE, LLC
No access to reinspect (first try)18911298121 SEAMAN AVENUE, LLC
No access to reinspect (first try)18911293121 SEAMAN AVENUE, LLC
Not complied with18849923121 SEAMAN AVENUE, LLC
Not complied with17909820
OATH/ECB4 open most often Boilers
Boilers, Class 2Found in violation39189277H121 SEAMAN AVENUE, LLC
Boilers, Class 2Found in violation39148035Y
Construction, Class 2Found in violation39130942M
Boilers, Class 2Found in violation39098861N

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Questions about this building

Does 121 Seaman Avenue, Manhattan have open violations?

Yes. 121 Seaman Avenue, Manhattan had 22 open violations on September 27, 2026: 18 from HPD and 4 from OATH/ECB. 10 are Class C, the class HPD treats as immediately hazardous. The oldest open HPD violation has been open 23 months, since October 17, 2024.

Is 121 Seaman Avenue, Manhattan getting better or worse?

Certifications are being filed faster than new violations come in. 18 certifications filed against 6 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 121 Seaman Avenue, Manhattan?

Since September 29, 2023, certifications were filed on 6 Class C violations, all 6 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 121 Seaman Avenue, Manhattan have active DOB violations?

Yes. 1 active DOB violation, issued December 1, 2021. 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 121 Seaman Avenue, Manhattan?

Yes. 5 DOB complaints in the 12 months to September 25, 2026. The newest was filed August 7, 2026. 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.

Are any HPD emergency repair orders at 121 Seaman Avenue, Manhattan marked completed?

Yes. 2 completed HPD emergency repair orders since September 29, 2023, awarded for $5,600 in total. The most recent of the 2, a general construction order, was opened October 4, 2025. 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 121 Seaman Avenue, Manhattan last inspected?

On September 15, 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 121 Seaman Avenue, Manhattan last file its bedbug report?

On December 26, 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 121 Seaman Avenue, Manhattan covered by Local Law 97?

Yes. It is on DOB's Local Law 97 covered buildings list. Covered from 2026 as a rent-regulated 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 121 Seaman 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 121 Seaman Avenue, Manhattan built?

The city's record gives 1932 as the year 121 Seaman Avenue, Manhattan was built, in the Department of City Planning's PLUTO tax-lot file. The same file classes it as an elevator apartment building with 6 floors.

How many apartments does 121 Seaman Avenue, Manhattan have?

The Department of City Planning's PLUTO tax-lot file lists 42 residential units at 121 Seaman 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, DOB complaints, the Rent Guidelines Board's stabilized-building lists, HPD emergency repair orders, 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 DOB violations, DOB complaints, the Rent Guidelines Board's stabilized-building lists, HPD emergency repair orders, 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, 121 Seaman Ave, Manhattan: 10 open Class C, from New York City's HPD violation and OATH/ECB hearing data. Figures through September 27, 2026. https://violationscout.com/building/121-seaman-avenue-manhattan

How we count: /method.

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