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ViolationScout1 open Class C, with 1 certification filed and 0 new Class C in the last 180 days, too few to call a direction.Your building
Buildings621 Nostrand Avenue, BrooklynCurrent through

621 Nostrand Ave, Brooklyn

BBL 3-01220-0008

Built
1910
Floors
4
Residential units
7
Building type
Walk-up building
Zoning district
R6A
Lot area
2,500 sq ft
Floor area
7,400 sq ft

En español: 1 violación de Clase C abierta (peligro inmediato) y 2 abiertas en total. La más antigua del HPD lleva 34 años abierta, desde el 18 de diciembre de 1991.

Open now, most hazardous first

  1. 1

    Class C, immediately hazardous

    Oldest open since

    Get it certified
  2. 1

    Class B, hazardous

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Open violations are sitting, with little movement either way. 1 open Class C, with 1 certification filed and 0 new Class C in the last 180 days, too few to call a direction.

Since October 12, 2023, certifications were filed on 3 Class C violations: 2 by the original certify-by date, 1 after it. How certification works

The original certify-by dates on the 2 open HPD violations have all passed. The latest was September 24, 2026. The report prints the date beside each one.

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1 open Class C. The oldest open HPD violation was filed December 18, 1991.

A firm we work with can take these on. We reply within one business day with the firm's name. You decide whether to talk to them. 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.

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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.

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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.

For a letter to your landlord or a housing court case, the report lists every open violation here, each in the city's own words with the date on its notice. Get the report, $19

DOB violations
1 active DOB violation, issued April 6, 2018.
Housing court
4 housing court cases here since 2009.
Boiler inspection
Inspected August 4, 2026. Boilers in buildings with 6 or more apartments are inspected every calendar year.
Bedbug report
Filed May 6, 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).
HPD emergency repair orders
2 completed HPD emergency repair orders since October 12, 2023, awarded for $3,330 in total. The most recent of the 2, a lead paint order, was opened September 7, 2024.

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 C1 open
Lead PaintNotice sent17769543
Class B1 open
Certified on time19124380621 Nostrand LLC

The full report on 621 Nostrand Ave, Brooklyn

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Questions about this building

Does 621 Nostrand Avenue, Brooklyn have open violations?

Yes. 621 Nostrand Avenue, Brooklyn had 2 open violations on October 10, 2026: 2 from HPD. 1 is Class C, the class HPD treats as immediately hazardous. The oldest open HPD violation has been open 34 years, since December 18, 1991.

Is 621 Nostrand Avenue, Brooklyn getting better or worse?

Open violations are sitting, with little movement either way. 1 open Class C, with 1 certification filed and 0 new Class C in the last 180 days, too few to call a direction. That window ends October 10, 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 621 Nostrand Avenue, Brooklyn?

Since October 12, 2023, certifications were filed on 3 Class C violations: 2 by the original certify-by date, 1 after it. 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 621 Nostrand Avenue, Brooklyn have active DOB violations?

Yes. 1 active DOB violation, issued April 6, 2018. 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 621 Nostrand Avenue, Brooklyn been in housing court?

Yes. 4 housing court cases here since 2009. 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.

Are any HPD emergency repair orders at 621 Nostrand Avenue, Brooklyn marked completed?

Yes. 2 completed HPD emergency repair orders since October 12, 2023, awarded for $3,330 in total. The most recent of the 2, a lead paint order, was opened September 7, 2024. 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 621 Nostrand Avenue, Brooklyn last inspected?

On August 4, 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 621 Nostrand Avenue, Brooklyn last file its bedbug report?

On May 6, 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 621 Nostrand Avenue, Brooklyn 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 621 Nostrand Avenue, Brooklyn built?

The city's record gives 1910 as the year 621 Nostrand Avenue, Brooklyn was built, in the Department of City Planning's PLUTO tax-lot file. The same file classes it as a walk-up building with 4 floors.

How many apartments does 621 Nostrand Avenue, Brooklyn have?

The Department of City Planning's PLUTO tax-lot file lists 7 residential units at 621 Nostrand 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 DOB violations, HPD's housing court cases, the Rent Guidelines Board's stabilized-building lists, 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 October 10, 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, the Rent Guidelines Board's stabilized-building lists, 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, 621 Nostrand Ave, Brooklyn: 7 units, 1 open Class C, from New York City's HPD violation and OATH/ECB hearing data. Figures through October 10, 2026. https://violationscout.com/building/621-nostrand-avenue-brooklyn

How we count: /method.

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