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ViolationScout4 open Class C, with 1 certification filed and 1 new Class C in the last 180 days, too few to call a direction.Your building
Buildings667 Classon Avenue, BrooklynCurrent through

667 Classon Ave, Brooklyn

BBL 3-01149-0011

Built
1931
Floors
4
Residential units
8
Building type
Walk-up building
Zoning district
R6A
Lot area
2,246 sq ft
Floor area
5,900 sq ft
Last sale
$22,072,796The same price is recorded on 5 lots on this block that day.

En español: 4 violaciones de Clase C abiertas (peligro inmediato) y 10 abiertas en total. La más antigua del HPD lleva 2 años abierta, desde el 18 de enero de 2024.

Open now, most hazardous first

  1. 4

    Class C, immediately hazardous. Most often Heat / Hot Water.

    Oldest open since

    Get these certified
  2. 6

    Class B, hazardous. Most often Fire Safety.

    See the 6

Open violations are sitting, with little movement either way. 4 open Class C, with 1 certification filed and 1 new Class C in the last 180 days, too few to call a direction.

Since October 12, 2023, certifications were filed on 17 Class C violations, all 17 by the original certify-by date. HPD now marks 1 of them Invalid Certification. How certification works

The original certify-by dates on the 10 open HPD violations run from January 31, 2024 to October 22, 2026. The report prints the date beside each one.

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4 open Class C. The oldest open HPD violation was filed January 18, 2024.

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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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

OATH/ECB summonses
4 DOB summonses here since January 1, 2019, with $12,900 in penalties imposed. 4 judgments docketed, the latest on August 31, 2026. A docketed judgment shows up in a title search.
  • January 28, 2025, DOB: Fail maintain building compliant manner: Miscellaneous sign violation by outdoor advertising company. In violation, $10,000 penalty imposed.
  • December 8, 2022, DOB: Electrical work without a permit. In violation, $400 penalty imposed.
  • February 11, 2020, DOB: Fail to comply with commissioner order to file certificate of correction with DOB. In violation, $1,250 penalty imposed.

The newest 3 of 4 summonses OATH lists here. The report lists all 4, with each outcome, the penalty imposed and any docketing date. What the report adds

Housing court
1 open housing court case, opened May 15, 2026. 3 housing court cases here since 2019.
Boiler inspection
Inspected March 3, 2025. Boilers in buildings with 6 or more apartments are inspected every calendar year. Need this filed?
Bedbug report
Filed December 16, 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).
Tax exemption
Has a J-51 tax exemption (DOF 2026/27 roll). DOF lists its start year as 2000.

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 C4 open most often Heat / Hot Water
CIV14 mailed19182042PROSPECT AFFORDABLE PACKAGE LLC
Heat / Hot WaterInvalid certification18627761PROSPECT AFFORDABLE PACKAGE LLC
Heat / Hot WaterNotice sent17618748
Heat / Hot WaterNot complied with16601222
Class B6 open most often Fire Safety
Notice sent19182046PROSPECT AFFORDABLE PACKAGE LLC
Fire SafetyNotice sent19182045PROSPECT AFFORDABLE PACKAGE LLC
Fire SafetyNotice sent19182044PROSPECT AFFORDABLE PACKAGE LLC
Notice sent19182043PROSPECT AFFORDABLE PACKAGE LLC
Notice sent18335753PROSPECT AFFORDABLE PACKAGE LLC
Notice sent18311341PROSPECT AFFORDABLE PACKAGE LLC

The full report on 667 Classon Ave, Brooklyn

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The most common category among the open records here is heat and hot water.

Heat and hot water in Brooklyn

Other buildings on this tax block

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Questions about this building

Does 667 Classon Avenue, Brooklyn have open violations?

Yes. 667 Classon Avenue, Brooklyn had 10 open violations on October 10, 2026: 10 from HPD. 4 are Class C, the class HPD treats as immediately hazardous. The oldest open HPD violation has been open 2 years, since January 18, 2024.

Is 667 Classon Avenue, Brooklyn getting better or worse?

Open violations are sitting, with little movement either way. 4 open Class C, with 1 certification filed and 1 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 667 Classon Avenue, Brooklyn?

Since October 12, 2023, certifications were filed on 17 Class C violations, all 17 by the original certify-by date. HPD now marks 1 of them Invalid Certification. 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.

Is 667 Classon Avenue, Brooklyn in housing court?

Yes. 1 open housing court case, opened May 15, 2026. 3 housing court cases here since 2019. 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.

When was the boiler at 667 Classon Avenue, Brooklyn last inspected?

On March 3, 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 667 Classon Avenue, Brooklyn last file its bedbug report?

On December 16, 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 667 Classon 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.

Does 667 Classon Avenue, Brooklyn have a property tax exemption?

The building has a J-51 tax exemption on DOF's 2026/27 roll. DOF lists its start year as 2000. An exemption lowers a property's tax bill by reducing its assessed value.

When was 667 Classon Avenue, Brooklyn built?

The city's record gives 1931 as the year 667 Classon 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 667 Classon Avenue, Brooklyn have?

The Department of City Planning's PLUTO tax-lot file lists 8 residential units at 667 Classon 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 OATH/ECB summonses from DOB and FDNY, HPD's housing court cases, the Rent Guidelines Board's stabilized-building lists, DOF's exemption rolls, DOB boiler inspection reports, HPD's annual bedbug reports, the city's PLUTO tax-lot file and DOF's property sales records. 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 OATH/ECB summonses from DOB and FDNY, HPD's housing court cases, the Rent Guidelines Board's stabilized-building lists, DOF's exemption rolls, DOB boiler inspection reports, HPD's annual bedbug reports, the city's PLUTO tax-lot file and DOF's property sales records. 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, 667 Classon Ave, Brooklyn: 8 units, 4 open Class C, from New York City's HPD violation and OATH/ECB hearing data. Figures through October 10, 2026. https://violationscout.com/building/667-classon-avenue-brooklyn

How we count: /method.

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