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ViolationScout9 new Class C against 4 certifications filed in the last 180 days.Is this your building?
Buildings400 St Marks Avenue, BrooklynCurrent through

400 St Marks Ave, Brooklyn

BBL 3-01155-0020

En español: 16 violaciones de Clase C abiertas (peligro inmediato) y 55 abiertas en total.

New violations are coming in faster than certifications are filed. 9 new Class C against 4 certifications filed in the last 180 days.

Since September 28, 2023, certifications were filed on 12 Class C violations: 8 by the original certify-by date, 4 after it. How certification works

Is this your building?

16 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.

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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 August 16, 1993.
Rent stabilization
Has rent-stabilized apartments (2024 registration).
HPD emergency repair orders
2 completed HPD emergency repair orders since September 28, 2023, awarded for $7,239 in total. The most recent of the 2, a general construction order, was opened October 1, 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 C16 open most often Vermin / Infestation
Vermin / InfestationNotice sent to tenant19127374CROWN PROSPECT HOUSES HDFc
Heat / Hot WaterCertified late19127372CROWN PROSPECT HOUSES HDFc
Vermin / InfestationNotice sent to tenant19059422CROWN PROSPECT HOUSES HDFc
Vermin / InfestationNotice sent to tenant19059421CROWN PROSPECT HOUSES HDFc
Notice sent18796521CROWN PROSPECT HOUSES HDFc
Notice sent18796520CROWN PROSPECT HOUSES HDFc
Fire SafetyNotice sent18796510CROWN PROSPECT HOUSES HDFc
Heat / Hot WaterNotice sent18796509CROWN PROSPECT HOUSES HDFc
Vermin / InfestationNotice sent to tenant18796508CROWN PROSPECT HOUSES HDFc
Vermin / InfestationNotice sent to tenant18272103
Vermin / InfestationNotice sent to tenant18272102
Vermin / InfestationNot complied with17627281
Fire SafetyNo access to reinspect (first try)17606201
Vermin / InfestationNot complied with17220749
Vermin / InfestationNo access to reinspect (first try)17004468
Vermin / InfestationNot complied with16973672
Class B39 open
Notice sent19141216CROWN PROSPECT HOUSES HDFc
Notice sent19127376CROWN PROSPECT HOUSES HDFc
Notice sent19127375CROWN PROSPECT HOUSES HDFc
MoldNotice sent to tenant19127373CROWN PROSPECT HOUSES HDFc
MoldNotice sent to tenant19151691CROWN PROSPECT HOUSES HDFc
Notice sent18796529CROWN PROSPECT HOUSES HDFc
Notice sent18796528CROWN PROSPECT HOUSES HDFc
Notice sent18796527CROWN PROSPECT HOUSES HDFc
Notice sent18796525CROWN PROSPECT HOUSES HDFc
Notice sent18796524CROWN PROSPECT HOUSES HDFc
Notice sent18796523CROWN PROSPECT HOUSES HDFc
Notice sent18796522CROWN PROSPECT HOUSES HDFc
Notice sent18796519CROWN PROSPECT HOUSES HDFc
Notice sent18796514CROWN PROSPECT HOUSES HDFc
Notice sent18796513CROWN PROSPECT HOUSES HDFc
Notice sent18796512CROWN PROSPECT HOUSES HDFc
Notice sent18796507CROWN PROSPECT HOUSES HDFc
Notice sent18281200
Notice sent18281195
Notice sent18281193
Notice sent18281192
Notice sent18281187
Notice sent18281183
Notice sent18281180
Notice sent18272108
Notice sent18272107
No access to reinspect (first try)17606205
No access to reinspect (first try)17606204
No access to reinspect (first try)17606203
No access to reinspect (first try)17606202
Structural HazardNot complied with17618975
Structural HazardNot complied with17618963
Not complied with17618962
Not complied with17618840
Not complied with17584770
Fire SafetyNot complied with17220748
Not complied with16973669
Not complied with16973661
Not complied with16973659

The most common category among the open records here is vermin and pests.

Vermin and pests in Brooklyn

Other buildings on this tax block

Nearby buildings

Questions about this building

Does 400 St Marks Avenue, Brooklyn have open violations?

Yes. 400 St Marks Avenue, Brooklyn had 55 open violations on September 26, 2026: 55 from HPD. 16 are Class C, the class HPD treats as immediately hazardous.

Is 400 St Marks Avenue, Brooklyn getting better or worse?

New violations are coming in faster than certifications are filed. 9 new Class C against 4 certifications filed in the last 180 days. 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 400 St Marks Avenue, Brooklyn?

Since September 28, 2023, certifications were filed on 12 Class C violations: 8 by the original certify-by date, 4 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 400 St Marks Avenue, Brooklyn have active DOB violations?

Yes. 1 active DOB violation, issued August 16, 1993. 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.

Are any HPD emergency repair orders at 400 St Marks Avenue, Brooklyn marked completed?

Yes. 2 completed HPD emergency repair orders since September 28, 2023, awarded for $7,239 in total. The most recent of the 2, a general construction order, was opened October 1, 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.

Is 400 St Marks 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 400 St Marks Avenue, Brooklyn built?

The city's record gives 1931 as the year 400 St Marks Avenue, Brooklyn was built, in the Department of City Planning's PLUTO tax-lot file. The same file classes it as a walk-up apartment building with 4 floors.

How many apartments does 400 St Marks Avenue, Brooklyn have?

The Department of City Planning's PLUTO tax-lot file lists 16 residential units at 400 St Marks 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, the Rent Guidelines Board's stabilized-building lists, HPD emergency repair orders 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, the Rent Guidelines Board's stabilized-building lists, HPD emergency repair orders 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, 400 St Marks Ave, Brooklyn: 16 open Class C, from New York City's HPD violation and OATH/ECB hearing data. Figures through September 26, 2026. https://violationscout.com/building/400-st-marks-avenue-brooklyn

How we count: /method.

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