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ViolationScout47 certifications filed against 12 new Class C in the last 180 days.Your building
Buildings307 12 Street, BrooklynCurrent through

307 12th St, Brooklyn

BBL 3-01023-0069

Built
1912
Floors
5
Residential units
25
Building type
Walk-up building
Zoning district
R6B
Lot area
5,000 sq ft
Floor area
17,370 sq ft
Last sale
$3,070,786

En español: 27 violaciones de Clase C abiertas (peligro inmediato) y 125 abiertas en total. La más antigua del HPD lleva 5 años abierta, desde el 9 de noviembre de 2020.

Open now, most hazardous first

  1. 27

    Class C, immediately hazardous. Most often Vermin / Infestation.

    29 open counting every year, the oldest since

    Get these certified
  2. 98

    Class B, hazardous. Most often Fire Safety.

    See the 98

Certifications are being filed faster than new violations come in. 47 certifications filed against 12 new Class C in the last 180 days.

Since October 12, 2023, certifications were filed on 31 Class C violations, all 31 by the original certify-by date. How certification works

The original certify-by dates on the 125 open HPD violations run from February 21, 2025 to November 23, 2026. The report prints the date beside each one.

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27 open Class C. The oldest open HPD violation was filed November 9, 2020.

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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

Open Class C, week by week
27 on September 24, 2026 and 27 on October 8, with a low of 26 on October 1.
OATH/ECB summonses
3 DOB and FDNY summonses here since January 1, 2019, with $2,500 in penalties imposed. 1 judgment docketed, on November 30, 2023. A docketed judgment shows up in a title search.
  • June 2, 2022, DOB: Failure to maintain building walls or appurtenances. In violation, $2,500 penalty imposed.
  • June 2, 2022, DOB: Miscellaneous violations. In violation.
  • October 17, 2019, FDNY: Recordkeeping. In violation.
Housing court
3 housing court cases here since 2008.
DOB complaints
1 DOB complaint in the 12 months to September 25, 2026. It was filed April 30, 2026.
DOB permits
DOB NOW lists 1 work permit here: Sidewalk Shed, issued June 13, 2022, signed off.
Boiler inspection
Inspected December 29, 2025. Boilers in buildings with 6 or more apartments are inspected every calendar year. Need this filed?
Bedbug report
Filed December 17, 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
4 completed HPD emergency repair orders since October 12, 2023, awarded for $1,975 in total. The most recent of the 4, a general construction order, was opened June 8, 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 C27 open most often Vermin / Infestation
Vermin / InfestationNotice sent to tenant19265472
Notice sent19248218
Not complied with19133383FLGSP 307 12 St LLC
Vermin / InfestationNot complied with19133370FLGSP 307 12 St LLC
Vermin / InfestationNot complied with19133369FLGSP 307 12 St LLC
No access to reinspect (first try)19126155FLGSP 307 12 St LLC
To be reinspected19126144FLGSP 307 12 St LLC
Not complied with19114472FLGSP 307 12 St LLC
No access to reinspect (first try)18813782
Lead PaintNo access to reinspect (first try)18806681
The report lists all 27, each with the city's own words and the date on its notice. What the report adds
Class B98 open most often Fire Safety
Notice sent19265470
Notice sent19265469
Notice sent19265467
Notice sent19265466
Notice sent19265465
Notice sent19253175
Notice sent19253166
Notice sent19248227
Notice sent19248226
Notice sent19248194
The report lists all 98, each with the city's own words and the date on its notice. What the report adds

The full report on 307 12th St, Brooklyn

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Questions about this building

Does 307 12 Street, Brooklyn have open violations?

Yes. 307 12 Street, Brooklyn had 125 open violations on October 10, 2026: 125 from HPD. 27 are Class C, the class HPD treats as immediately hazardous. The oldest open HPD violation has been open 5 years, since November 9, 2020.

Is 307 12 Street, Brooklyn getting better or worse?

Certifications are being filed faster than new violations come in. 47 certifications filed against 12 new Class C in the last 180 days. 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 307 12 Street, Brooklyn?

Since October 12, 2023, certifications were filed on 31 Class C violations, all 31 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.

Has 307 12 Street, Brooklyn been in housing court?

Yes. 3 housing court cases here since 2008. 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 307 12 Street, Brooklyn?

Yes. 1 DOB complaint in the 12 months to September 25, 2026. It was filed April 30, 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 307 12 Street, Brooklyn marked completed?

Yes. 4 completed HPD emergency repair orders since October 12, 2023, awarded for $1,975 in total. The most recent of the 4, a general construction order, was opened June 8, 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.

When was the boiler at 307 12 Street, Brooklyn last inspected?

On December 29, 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 307 12 Street, Brooklyn last file its bedbug report?

On December 17, 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 307 12 Street, 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 307 12 Street, Brooklyn built?

The city's record gives 1912 as the year 307 12 Street, 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 5 floors.

How many apartments does 307 12 Street, Brooklyn have?

The Department of City Planning's PLUTO tax-lot file lists 25 residential units at 307 12 Street, 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, DOB complaints, the Rent Guidelines Board's stabilized-building lists, DOB NOW work permits, HPD emergency repair orders, 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, DOB complaints, the Rent Guidelines Board's stabilized-building lists, DOB NOW work permits, HPD emergency repair orders, 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, 307 12th St, Brooklyn: 25 units, 27 open Class C, from New York City's HPD violation and OATH/ECB hearing data. Figures through October 10, 2026. https://violationscout.com/building/307-12-street-brooklyn

How we count: /method.

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