# 42 Hawthorne Street, Brooklyn, NY

Public-record building report from Know Your Building (https://knowyourbuilding.nyc/building/3050450025/42-hawthorne-street-brooklyn).
BBL 3050450025 · BIN 3115662 · Generated 2026-10-23

## Concern level: severe

- 19 open class-C HPD violations (immediately hazardous) across 8 apartments
- 14 of those issued in the last 3 years
- 2 open rent-impairing violation(s)
- 15 active DOB violation(s)
- 1 OATH/ECB fine lost by default (unpaid)

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 4 stabilized units for 2023, of about 8 apartments.
Registered units by year: 2018: 7, 2019: 4, 2020: 4, 2021: 4, 2022: 4, 2023: 4.
No public data says which specific apartment is stabilized; tenants can request their rent history from NYS Homes and Community Renewal.

## The building

built 1931, 4 floors, 8 residential units.

## HPD housing-maintenance violations

25 open (class C immediately hazardous: 19, class B hazardous: 6, class A non-hazardous: 0); 254 on record.
14 open class-C violations were issued in the last 3 years.
2 open violations are rent-impairing.

## DOB building violations

15 active (1 issued in the last 3 years); 19 on record.

## OATH/ECB violations and fines

2 active of 5 on record; 1 decided by default; $0 balance due.

## 311 housing complaints

4 in the last 12 months; 83 on record.
Most common: FLOORING/STAIRS (28), UNSANITARY CONDITION (13), PAINT/PLASTER (10), DOOR/WINDOW (9), PLUMBING (9).

## Bedbugs

6 annual bedbug filings by the owner; latest reports 0 infested units.

## Evictions

0 executed in the last 3 years; 0 on record.

## Housing court (HPD litigation)

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

## Landlord

- CorporateOwner: 42 HAWTHORNE LLC
- Agent: JOANNA MOLONEY
- HeadOfficer: JEAN DANIEL HERTZOG
- SiteManager: JOANNA MOLONEY

The same owner is linked to 2 other buildings (JEAN DANIEL HERTZOG at 61 GREENPOINT AVE).

## 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/3050450025/42-hawthorne-street-brooklyn