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ViolationScout13 new Class C against 1 certification filed in the last 180 days.Is this your building?
Buildings143 St Nicholas Avenue, BrooklynCurrent through

143 St Nicholas Ave, Brooklyn

BBL 3-03261-0009

En español: 28 violaciones de Clase C abiertas (peligro inmediato) y 36 abiertas en total. La más antigua del HPD lleva 13 meses abierta, desde el 22 de agosto de 2025.

New violations are coming in faster than certifications are filed. 13 new Class C against 1 certification filed in the last 180 days.

The oldest open HPD violation has been open 13 months, since August 22, 2025.

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28 open Class C. The oldest open HPD violation was filed August 22, 2025.

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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.

Housing court
1 open housing court case, opened April 3, 2026.
DOB complaints
4 DOB complaints in the 12 months to September 25, 2026. The newest was filed June 12, 2026.
DOB permits
3 DOB work permits in effect. The latest, for Construction Fence work, was issued September 1, 2026.
Boiler inspection
Inspected December 8, 2025.
Bedbug report
Filed December 24, 2025, for the year to October 31, 2025. Buildings with 3 or more apartments file one with HPD every year.
HPD emergency repair orders
3 completed HPD emergency repair orders since September 29, 2023, awarded for $3,135 in total. The most recent of the 3, a general construction order, was opened April 15, 2026.

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 C28 open most often Lead Paint
Lead PaintNotice sent19133797Mugen Group LLC
Lead PaintNotice sent19133796Mugen Group LLC
Lead PaintNotice sent19133795Mugen Group LLC
Lead PaintNotice sent19133794Mugen Group LLC
Lead PaintNotice sent19133793Mugen Group LLC
Lead PaintNotice sent19133792Mugen Group LLC
Lead PaintNotice sent19133791Mugen Group LLC
Vermin / InfestationNotice sent to tenant19126382Mugen Group LLC
Notice sent18988884Mugen Group LLC
Notice sent18988871Mugen Group LLC
The report lists all 28, each with the city's own words and the date on its notice. What the report adds
Class B8 open
Notice sent18988890Mugen Group LLC
Notice sent18988876Mugen Group LLC
Invalid certification18988852Mugen Group LLC
Not complied with18864574Mugen Group LLC
Not complied with18749561Mugen Group LLC
Not complied with18661314Mugen Group LLC
No access to reinspect (first try)18183288
Not complied with18177929

The full report on 143 St Nicholas Ave, Brooklyn

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The most common category among the open records here is lead paint.

Lead paint in Brooklyn

Nearby buildings

Questions about this building

Does 143 St Nicholas Avenue, Brooklyn have open violations?

Yes. 143 St Nicholas Avenue, Brooklyn had 36 open violations on September 27, 2026: 36 from HPD. 28 are Class C, the class HPD treats as immediately hazardous. The oldest open HPD violation has been open 13 months, since August 22, 2025.

Is 143 St Nicholas Avenue, Brooklyn getting better or worse?

New violations are coming in faster than certifications are filed. 13 new Class C against 1 certification filed 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.

Is 143 St Nicholas Avenue, Brooklyn in housing court?

Yes. 1 open housing court case, opened April 3, 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 143 St Nicholas Avenue, Brooklyn?

Yes. 4 DOB complaints in the 12 months to September 25, 2026. The newest was filed June 12, 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 143 St Nicholas Avenue, Brooklyn marked completed?

Yes. 3 completed HPD emergency repair orders since September 29, 2023, awarded for $3,135 in total. The most recent of the 3, a general construction order, was opened April 15, 2026. 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.

Are any DOB work permits in effect at 143 St Nicholas Avenue, Brooklyn?

Yes. 3 DOB work permits in effect. The latest, for Construction Fence work, was issued September 1, 2026. A permit in effect allows the work it names. It does not mean the work has started or finished, or that it fixes any violation on this page.

When was the boiler at 143 St Nicholas Avenue, Brooklyn last inspected?

On December 8, 2025. 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 143 St Nicholas Avenue, Brooklyn last file its bedbug report?

On December 24, 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.

When was 143 St Nicholas Avenue, Brooklyn built?

The city's record gives 1931 as the year 143 St Nicholas Avenue, Brooklyn was built, in the Department of City Planning's PLUTO tax-lot file. The same file classes it as a residence with stores or offices with 3 floors.

How many apartments does 143 St Nicholas Avenue, Brooklyn have?

The Department of City Planning's PLUTO tax-lot file lists 5 residential units at 143 St Nicholas Avenue, Brooklyn. 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 HPD's housing court cases, DOB complaints, DOB NOW work permits, HPD emergency repair orders, DOB boiler inspection reports, 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 HPD's housing court cases, DOB complaints, DOB NOW work permits, HPD emergency repair orders, DOB boiler inspection reports, 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, 143 St Nicholas Ave, Brooklyn: violations, from New York City's HPD violation and OATH/ECB hearing data. Figures through September 27, 2026. https://violationscout.com/building/143-st-nicholas-avenue-brooklyn

How we count: /method.

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