# 307 Martense Street, Brooklyn, NY

Public-record building report from Know Your Building (https://knowyourbuilding.nyc/building/3048680079/307-martense-street-brooklyn).
BBL 3048680079 · BIN 3108535 · Generated 2026-10-24

## Concern level: severe

- 17 open class-C HPD violations (immediately hazardous) across 27 apartments
- 12 of those issued in the last 3 years
- 2 open rent-impairing violation(s)
- 1 active DOB violation(s)
- 2 evictions executed in the last 3 years

Scale: low, moderate, high, severe. Set from open hazardous violations relative to building size, raised by distress signals (HPD's Alternative Enforcement Program, court harassment findings, evictions, unpaid OATH/ECB fines, open housing-court cases, a sold tax lien). It describes the public record, not any one apartment.

## Rent stabilization

Likely rent-stabilized. The owner registered 27 stabilized units for 2023, of about 27 apartments.
Registered units by year: 2018: 27, 2019: 27, 2020: 27, 2021: 27, 2022: 27, 2023: 27.
No public data says which specific apartment is stabilized; tenants can request their rent history from NYS Homes and Community Renewal.

## The building

built 1922, 4 floors, 27 residential units.

## HPD housing-maintenance violations

74 open (class C immediately hazardous: 17, class B hazardous: 40, class A non-hazardous: 17); 189 on record.
12 open class-C violations were issued in the last 3 years.
2 open violations are rent-impairing.

## DOB building violations

1 active (0 issued in the last 3 years); 9 on record.

## OATH/ECB violations and fines

0 active of 1 on record; 0 decided by default; $0 balance due.

## 311 housing complaints

23 in the last 12 months; 127 on record.
Most common: HEAT/HOT WATER (43), UNSANITARY CONDITION (19), PLUMBING (13), FLOORING/STAIRS (12), PAINT/PLASTER (10).

## Bedbugs

12 annual bedbug filings by the owner; latest reports 0 infested units. A filing has reported re-infestation.

## Evictions

2 executed in the last 3 years; 4 on record.

## Housing court (HPD litigation)

4 cases on record, 0 open, 4 tenant-initiated, 0 with a court finding of harassment.

## Landlord

- CorporateOwner: Ditmas Park 307, LLC
- Agent: Bronstein Properties LLC
- HeadOfficer: Scott Silverman
- Officer: Barry Rudofsky
- SiteManager: Ernie Winters

The same owner is linked to 86 other buildings (Scott Silverman at 108-18 Queens Blvd).

## Sources and limits

NYC Open Data (HPD, DOB, OATH/ECB, 311, DOF, PLUTO) and NYS DHCR building lists. This is a screening signal from public records, not legal advice; records lag and contain errors. Full interactive report with violation details and maps: https://knowyourbuilding.nyc/building/3048680079/307-martense-street-brooklyn