5921 4 Avenue

Brooklyn, NY

BBL 3-00863-0003BIN 3337341

Concern level4 of 4

Severe

0112 open class-C HPD violations (immediately hazardous) across 6 apartments
029 open rent-impairing violation(s)
032 active DOB violation(s)
042 evictions executed in the last 3 years

How this is set: open hazardous violations measured against the building's size, then raised by strong distress signals — HPD's enforcement program, court harassment findings, recent evictions, unpaid DOB fines, open housing-court cases, and a sold tax lien. Neighborhood noise and crime are not part of it. It describes the public record, not the condition of any one apartment, and a quiet record is not proof of a good building.

Rent regulation

Likely rent-stabilized

The owner registered 6 stabilized units with New York State for 2021 — essentially all of the building's 6 apartments.

No public data says which specific apartment is stabilized.

Registration counts apply to the building, not to unit numbers. To confirm your own apartment, request your rent history from New York State Homes and Community Renewal — it is free and takes a few weeks.

How to request your rent history →

Rent regulation

The building

1931

Built

Floors

Residential units

Mixed residential / commercial

Type

The building

This building and the landlord's others

This building1 others linked to the same owner

HPD housing-maintenance violations

Open now

On record

Open Class C

Open Class B

Open Class A

Class C is immediately hazardous, Class B is hazardous, Class A is non-hazardous. A violation stays open until HPD certifies the repair, so some open items may already be fixed.

CLASS C · IMMEDIATELY HAZARDOUSIssued 2022-02-03

§ 27-2005 ADM CODE PROPERLY REPAIR THE BROKEN OR DEFECTIVE ENTRANCE DOOR LOCKING DEVICES LEADING FROM STREET AT PUBLIC HALL, 1st STORY

Status: Notice issued, not yet certified

CLASS C · IMMEDIATELY HAZARDOUSApt 3RIssued 2013-01-285+ YRS OLD

§ 27-2005 ADM CODE REPLACE WITH NEW THE BROKEN OR DEFECTIVE LOWER WINDOW SASH GLASS PANE IN THE 3rd ROOM FROM NORTH LOCATED AT APT 3R, 3rd STORY

Status: Notice issued, not yet certified

CLASS C · IMMEDIATELY HAZARDOUSIssued 2010-05-135+ YRS OLDRENT-IMPAIRING

§ 27-2005, 2007 ADM CODE REMOVE THE ILLEGAL FASTENING SLIDE BOLT CAPABLE OF BEING PADLOCKED AT ROOF BULKHEAD DOOR

Status: Notice issued, not yet certified

CLASS C · IMMEDIATELY HAZARDOUSIssued 2010-05-135+ YRS OLDRENT-IMPAIRING

§ 27-2005, 2007 ADM CODE REMOVE THE ILLEGAL FASTENING DOUBLE CYLINDER KEY OPERATED LOCK INSTALLED AT BUILDING ENTRANCE DOOR

Status: Notice issued, not yet certified

HPD housing-maintenance violations

311 complaints from tenants

All time

Last 12 months

Heat/Hot Water2

Plumbing2

Door/Window1

Flooring/Stairs1

Paint/Plaster1

Unsanitary Condition1

Heat/Hot WaterApartment Only2025-11-27 · closed

Heat/Hot WaterApartment Only2025-11-17 · closed

PlumbingBasin/Sink2025-08-27 · closed

Complaints record what a tenant reported, not a finding by the city. "Closed" often means the inspector could not gain access.

311 complaints from tenants

Neighborhood noise

Higher than averagevs. NYC apartment blocks

451

Noise reports · last 12 mo

≈ per month

% from neighbors

Residential204

Street/Sidewalk158

Vehicle38

Unspecified28

Commercial22

House of Worship1

311 noise complaints within about 1,000 ft (a few blocks) in the last year. Most reports here are about outdoor noise (mostly residential) — street life and traffic more than neighbors. This counts how often people call 311, which tracks how densely populated and busy an area is as much as how loud it is — it is not a sound measurement.

Neighborhood noise

Neighborhood crime

Much higher than averagevs. NYC apartment blocks

484

NYPD reports · last 12 mo

≈ per month

Felony154

Misdemeanor275

Violation55

NYPD complaints reported within about 1,000 ft (a few blocks) in the last year, by severity. This reflects what gets reported and where police are active as much as actual safety, and busier, denser, higher-foot-traffic blocks log more. Locations are approximate — the NYPD shifts each report to the nearest corner for privacy — so read this as rough context, not a safety score.

Neighborhood crime

Bedbug history

No bedbugs reported

The owner filed 4 annual bedbug reports and reported no infested units. Filing with zero infestations is the compliant, reassuring case.

Bedbug history

DOB building violations

Active

On record

Active, last 3 yrs

ACTIVE · LBLVIO-LOW PRESSURE BOILER BOILER REQUIRED2019-11-08

VIOLATION ISSUED FOR FAILURE TO FILE ANNUAL BOILER 2017 INSPECTION REPORT

ACTIVE · LBLVIO-LOW PRESSURE BOILER BOILER REQUIRED2018-04-06

VIOLATION ISSUED FOR FAILURE TO FILE ANNUAL BOILER 2016 INSPECTION REPORT

DOB building violations

Evictions

Executed, all time

Last 3 years

2025-05-12Apt 2Rresidential

Executed by a city marshal. An eviction can be lawful; a high or rising count is a displacement signal, not proof of wrongdoing.

Evictions

Housing court

Cases on record

Open now

Tenant-brought

Harassment found

With a judgment

Most cases are tenants taking the owner to court to force repairs. A case is not proof of wrongdoing; a harassment finding or judgment is a court ruling against the owner.

CLOSEDOpened 2013-05-23

Access Warrant - Non-Lead

Housing court

Landlord and related buildings

Registered owner

GREEN FOREST PROPERTY INC

Head officer

QI WEN DONG

Managing agent

JIN ZHANG HUANG

1 other building share this owner's registration contacts. Shared contacts suggest common control, but they are not proof of ownership.

417 49 STREETBROOKLYN

Landlord and related buildings

Unpaid city fines

Balance due (active)

Active violations

Lost by default

DOB violations adjudicated by OATH carry money penalties. "Lost by default" means the owner never appeared at the hearing. An unpaid balance is a stronger "ignoring the city" signal than a raw violation count.

Unpaid city fines

Ownership & money

Recorded sales

Mortgages / refinances

Last recorded sale2013-11-06 · $1,300,000

Most recent mortgage2013-11-06 · $349,401.68

Sale2013-11-06$1,300,000

LONG RIVER PROPERTY LLC → GREEN FOREST PROPERTY INC.

Mortgage2013-11-06$349,401.68

borrower GREEN FOREST PROPERTY INC. · lender WILMINGTON SAVINGS FUND SOCIETY, FSB

Sale2009-09-10$985,000

B & Q REAL PROPERTY LLC → LONG RIVER PROPERTY LLC

Mortgage2009-09-10$675,000

borrower LONG RIVER PROPERTY LLC · lender WILMINGTON SAVINGS FUND SOCIETY, FSB

Mortgage2006-01-04$1,168,000

borrower B&Q REAL PROPERTY LLC · lender ASTORIA FEDERAL SAVINGS AND LOAN ASSOCIATION

From ACRIS recorded documents. Amounts are often $0 or nominal for transfers between related parties, and LLCs can obscure who is really involved — treat this as public-record context, not a valuation.

Ownership & money

City debt & tax-lien sale

Not on the city's tax-lien sale list (2019–2025). The owner has not fallen far enough behind on property tax or water charges to be flagged for a lien sale.

City debt & tax-lien sale