Skip to content
ViolationScout13 open Class C, with nothing filed or new in the last 180 days.Is this your building?
Buildings340 St Marks Avenue, BrooklynCurrent through

340 St Marks Ave, Brooklyn

BBL 3-01153-0025

En español: 13 violaciones de Clase C abiertas (peligro inmediato) y 37 abiertas en total.

Open violations are sitting, with little movement either way. 13 open Class C, with nothing filed or new in the last 180 days.

Is this your building?

13 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.

Request a sample file

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
12 active DOB violations, most of them for low-pressure boilers. The newest was issued November 14, 2025.

Open violations by class. A party is named only where the building's HPD registration covers the date a violation was filed.

FiledCategoryStatusNumber
Class C13 open most often Lead Paint
Lead PaintNotice sent18062841
Lead PaintNotice sent18062839
Lead PaintNotice sent18062838
Fire SafetyNotice sent18062690
Notice sent18062683
Notice sent18062681
Notice sent18062671
Notice sent18062662
Notice sent18062657
Lead PaintNotice sent17859150
Lead PaintNotice sent17859149
Lead PaintNotice sent17859148
Notice sent17853522
Class B24 open most often Fire Safety
Fire SafetyNotice sent18062815
Fire SafetyNotice sent18062813
MoldNo access to reinspect (first try)18062782
Notice sent18062760
Notice sent18062757
Notice sent18062686
Notice sent18062675
Notice sent18062674
Notice sent18062658
Notice sent18062656
Notice sent18062652
Notice sent18062651
MoldTo be reinspected18193327
MoldTo be reinspected18193326
Fire SafetyNotice sent17853524
Fire SafetyNotice sent17853523
Notice sent17853521
Notice sent17853520
Notice sent17853519
Notice sent17853518
Notice sent17853517
Notice sent17853515
Notice sent17853512
Notice sent17853511

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

Lead paint in Brooklyn

Nearby buildings

Questions about this building

Does 340 St Marks Avenue, Brooklyn have open violations?

Yes. 340 St Marks Avenue, Brooklyn had 37 open violations on September 26, 2026: 37 from HPD. 13 are Class C, the class HPD treats as immediately hazardous.

Is 340 St Marks Avenue, Brooklyn getting better or worse?

Open violations are sitting, with little movement either way. 13 open Class C, with nothing filed or new 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.

Does 340 St Marks Avenue, Brooklyn have active DOB violations?

Yes. 12 active DOB violations, most of them for low-pressure boilers. The newest was issued November 14, 2025. 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.

When was 340 St Marks Avenue, Brooklyn built?

The city's record gives 1931 as the year 340 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 340 St Marks Avenue, Brooklyn have?

The Department of City Planning's PLUTO tax-lot file lists 6 residential units at 340 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 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 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, 340 St Marks Ave, Brooklyn: 13 open Class C, from New York City's HPD violation and OATH/ECB hearing data. Figures through September 26, 2026. https://violationscout.com/building/340-st-marks-avenue-brooklyn

How we count: /method.

Is this your building?