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ViolationScout10 certifications filed and 6 new Class C in the last 180 days, neither far ahead.Is this your building?
Buildings23 East 124 Street, ManhattanCurrent through

23 East 124th St, Manhattan

BBL 1-01749-0014

En español: 19 violaciones de Clase C abiertas (peligro inmediato) y 50 abiertas en total.

Certifications are being filed about as fast as new violations come in. 10 certifications filed and 6 new Class C in the last 180 days, neither far ahead.

Since September 28, 2023, certifications were filed on 12 Class C violations, all 12 by the original certify-by date. How certification works

Is this your building?

19 open Class C.

We read every request ourselves. When a compliance firm we work with can take the building, we introduce you to that one firm. 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.

¿Es su edificio? Déjenos un correo o un teléfono. Leemos cada solicitud.

Or file it yourself: what it can hold up, and how correction is filed

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.

Request a sample file

The building report reads this record for you: which violations matter, and how long this kind usually takes to clear. It is not on sale yet.

See what the report covers

HPD takes complaints from tenants through 311.

DOB violations
1 active DOB violation, issued January 13, 1997.
Housing court
2 open housing court cases. The newest opened June 10, 2026.
DOB complaints
1 DOB complaint in the last 12 months, a conversion complaint. It was filed October 23, 2025.
DOB facade
Rated Safe in the latest facade report, filed October 9, 2020 (inspection cycle 9).
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 C19 open most often Vermin / Infestation
Heat / Hot WaterCIV14 mailed19100767ONE TWO FOUR MADISON ASSOC LLC
Vermin / InfestationNotice sent to tenant19100762ONE TWO FOUR MADISON ASSOC LLC
Vermin / InfestationNotice sent to tenant19036729ONE TWO FOUR MADISON ASSOC LLC
Vermin / InfestationNotice sent to tenant19036728ONE TWO FOUR MADISON ASSOC LLC
Heat / Hot WaterNotice sent18808498ONE TWO FOUR MADISON ASSOC LLC
Heat / Hot WaterNotice sent18808497ONE TWO FOUR MADISON ASSOC LLC
Vermin / InfestationNotice sent to tenant18567327ONE TWO FOUR MADISON ASSOC LLC
Vermin / InfestationNotice sent to tenant18326309ONE TWO FOUR MADISON ASSOC LLC
Notice sent18326300ONE TWO FOUR MADISON ASSOC LLC
Heat / Hot WaterNotice sent18310189ONE TWO FOUR MADISON ASSOC LLC
Notice sent18306213ONE TWO FOUR MADISON ASSOC LLC
Notice sent18306212ONE TWO FOUR MADISON ASSOC LLC
Notice sent18304078ONE TWO FOUR MADISON ASSOC LLC
Notice sent18304075ONE TWO FOUR MADISON ASSOC LLC
Vermin / InfestationNotice sent to tenant18262423ONE TWO FOUR MADISON ASSOC LLC
Notice sent18262420ONE TWO FOUR MADISON ASSOC LLC
Notice sent18262419ONE TWO FOUR MADISON ASSOC LLC
Vermin / InfestationNotice sent to tenant16932143
Vermin / InfestationNot complied with16506834
Class B31 open most often Mold
CIV14 mailed19100766ONE TWO FOUR MADISON ASSOC LLC
Notice sent19100765ONE TWO FOUR MADISON ASSOC LLC
Notice sent19100764ONE TWO FOUR MADISON ASSOC LLC
CIV14 mailed19036732ONE TWO FOUR MADISON ASSOC LLC
Notice sent19036731ONE TWO FOUR MADISON ASSOC LLC
CIV14 mailed19036730ONE TWO FOUR MADISON ASSOC LLC
Notice sent18997026ONE TWO FOUR MADISON ASSOC LLC
MoldNotice sent to tenant19080468ONE TWO FOUR MADISON ASSOC LLC
Fire SafetyNotice sent18714607ONE TWO FOUR MADISON ASSOC LLC
Fire SafetyNotice sent18714606ONE TWO FOUR MADISON ASSOC LLC
Notice sent18714605ONE TWO FOUR MADISON ASSOC LLC
MoldNotice sent to tenant19070805ONE TWO FOUR MADISON ASSOC LLC
MoldNo access to reinspect (first try)18686361ONE TWO FOUR MADISON ASSOC LLC
Notice sent18340622ONE TWO FOUR MADISON ASSOC LLC
Notice sent18340620ONE TWO FOUR MADISON ASSOC LLC
MoldNo access to reinspect (first try)18671758ONE TWO FOUR MADISON ASSOC LLC
Notice sent18326308ONE TWO FOUR MADISON ASSOC LLC
Notice sent18326307ONE TWO FOUR MADISON ASSOC LLC
Notice sent18326305ONE TWO FOUR MADISON ASSOC LLC
MoldNo access to reinspect (first try)18326304ONE TWO FOUR MADISON ASSOC LLC
Notice sent18326302ONE TWO FOUR MADISON ASSOC LLC
Notice sent18326299ONE TWO FOUR MADISON ASSOC LLC
Notice sent18310186ONE TWO FOUR MADISON ASSOC LLC
Notice sent18310185ONE TWO FOUR MADISON ASSOC LLC
MoldNo access to reinspect (first try)18304074ONE TWO FOUR MADISON ASSOC LLC
Notice sent18304073ONE TWO FOUR MADISON ASSOC LLC
Notice sent18304072ONE TWO FOUR MADISON ASSOC LLC
Notice sent18262422ONE TWO FOUR MADISON ASSOC LLC
MoldNo access to reinspect (first try)18262421ONE TWO FOUR MADISON ASSOC LLC
Invalid certification16774518
MoldNot complied with17009458

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Questions about this building

Does 23 East 124 Street, Manhattan have open violations?

Yes. 23 East 124 Street, Manhattan had 50 open violations on September 26, 2026: 50 from HPD. 19 are Class C, the class HPD treats as immediately hazardous.

Is 23 East 124 Street, Manhattan getting better or worse?

Certifications are being filed about as fast as new violations come in. 10 certifications filed and 6 new Class C in the last 180 days, neither far ahead. That window ends September 26, 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 23 East 124 Street, Manhattan?

Since September 28, 2023, certifications were filed on 12 Class C violations, all 12 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 23 East 124 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.

Is 23 East 124 Street, Manhattan in housing court?

Yes. 2 open housing court cases. The newest opened June 10, 2026. 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.

Has DOB received complaints about 23 East 124 Street, Manhattan?

Yes. 1 DOB complaint in the last 12 months, a conversion complaint. It was filed October 23, 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.

What did the latest facade report find at 23 East 124 Street, Manhattan?

Rated Safe in the latest facade report, filed October 9, 2020 (inspection cycle 9). Buildings taller than six stories must have their exterior walls inspected once in every inspection cycle under the city's Facade Inspection Safety Program (every five years under DOB's current rule), and each inspection report is filed with DOB as Safe, SWARMP (safe with a repair and maintenance program) or Unsafe. No Report Filed means DOB has no report for that cycle. The rating is from the latest filing and does not describe the facade today; DOB's page for the building shows anything filed since.

Is 23 East 124 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 23 East 124 Street, Manhattan built?

The city's record gives 1930 as the year 23 East 124 Street, 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 7 floors.

How many apartments does 23 East 124 Street, Manhattan have?

The Department of City Planning's PLUTO tax-lot file lists 29 residential units at 23 East 124 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, HPD's housing court cases, DOB complaints, the Rent Guidelines Board's stabilized-building lists, DOB facade filings and the city's PLUTO tax-lot file. This page is current through September 26, 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, HPD's housing court cases, DOB complaints, the Rent Guidelines Board's stabilized-building lists, DOB facade filings 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, 23 East 124th St, Manhattan: violations, from New York City's HPD violation and OATH/ECB hearing data. Figures through September 26, 2026. https://violationscout.com/building/23-east-124-street-manhattan

How we count: /method.

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