4623 6 Avenue

Brooklyn, NY

BBL 3-00758-0001BIN 3011953

Concern level4 of 4

Severe

01On HPD's Alternative Enforcement Program — the city's most-distressed-buildings list
0247 open class-C HPD violations (immediately hazardous) across 10 apartments
0318 of those issued in the last 3 years
0419 open rent-impairing violation(s)
0515 active DOB violation(s)
06Tax lien sold at the city's lien sale — a sign of financial distress
071 eviction 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.

HPD enforcement

On the Alternative Enforcement Program

HPD placed this building in its Alternative Enforcement Program (AEP Round 10), active since 2017-01-31. AEP is the city's response to its most distressed buildings — it had 460 open B/C violations at selection.

Rent regulation

Likely rent-stabilized

The owner registered 10 stabilized units with New York State for 2018 — essentially all of the building's 10 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

1928

Built

Floors

Residential units

Walk-up apartments

Type

The building

This building and the landlord's others

This building2 others linked to the same owner

HPD housing-maintenance violations

264

Open now

510

On record

Open Class C

143

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 I · NON-HAZARDOUS

§27-2153 ADM CODE THE PREMISES HAS BEEN SELECTED TO PARTICIPATE IN THE ALTERNATIVE ENFORCEMENT PROGRAM WHICH MAY RESULT IN BUILDING-WIDE INSPECTIONS, FEES, AND EXTENSIVE REPAIR WORK TO CORRECT VIOLATIONS AND UNDERLYING CONDITIONS. CHARGES FOR REPAIR WORK DONE PURSUANT TO THIS ORDER, IF NOT PAID, WILL BECOME LIENS ON THE PROPERTY

Status: Landlord hasn't certified a fix

CLASS C · IMMEDIATELY HAZARDOUSApt A3Issued 2026-01-13

§ 27-2005 HMC: PROPERLY REPAIR OR REPLACE THE BROKEN OR DEFECTIVE COLD RADIATOR IN THE 3rd ROOM FROM EAST AT NORTH LOCATED AT APT A3, 3rd STORY, 1st APARTMENT FROM SOUTH AT WEST

Status: Notice issued, not yet certified

CLASS C · IMMEDIATELY HAZARDOUSApt A3Issued 2026-01-13

§ 27-2005 HMC: PROPERLY REPAIR OR REPLACE THE BROKEN OR DEFECTIVE COLD RADIATOR IN THE 3rd ROOM FROM EAST AT SOUTH LOCATED AT APT A3, 3rd STORY, 1st APARTMENT FROM SOUTH AT WEST

Status: Notice issued, not yet certified

CLASS C · IMMEDIATELY HAZARDOUSIssued 2025-12-31

§ 27-2033 ADM CODE POST NOTICE, IN FORM APPROVED BY THE DEPARTMENT, STATING THE NAME AND LOCATION OF THE PERSON DESIGNATED BY THE OWNER TO HAVE KEY TO BUILDINGS HEATING SYSTEM AT PUBLIC HALL, 1st STORY

Status: Notice issued, not yet certified

HPD housing-maintenance violations

311 complaints from tenants

All time

Last 12 months

Heat/Hot Water17

Unsanitary Condition10

Plumbing9

General7

Door/Window7

Paint/Plaster7

Safety5

Electric5

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

About averagevs. NYC apartment blocks

316

Noise reports · last 12 mo

≈ per month

% from neighbors

Residential132

Street/Sidewalk116

Unspecified39

Commercial19

Vehicle10

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

About averagevs. NYC apartment blocks

202

NYPD reports · last 12 mo

≈ per month

Felony61

Misdemeanor122

Violation19

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 annual bedbug report on file. Owners of buildings with three or more apartments must file one each year — its absence can mean a smaller building, or an owner that has not filed.

Bedbug history

DOB building violations

Active

On record

Active, last 3 yrs

ACTIVE · LBLVIO-LOW PRESSURE BOILER BOILER REQUIRED2023-06-30

VIOLATION ISSUED-FAILURE TO FILE 2021 EXTERNAL LOW PRESSURE INSPECTION

ACTIVE · LBLVIO-LOW PRESSURE BOILER BOILER REQUIRED2023-06-30

VIOLATION ISSUED-FAILURE TO FILE 2021 EXTERNAL LOW PRESSURE INSPECTION

ACTIVE · LBLVIO-LOW PRESSURE BOILER BOILER REQUIRED2023-06-30

VIOLATION ISSUED-FAILURE TO FILE 2020 EXTERNAL LOW PRESSURE INSPECTION

DOB building violations

Evictions

Executed, all time

Last 3 years

2024-09-25Apt 3Bresidential

2019-06-10Apt 2Aresidential

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 2019-10-29

Comprehensive

CLOSEDOpened 2017-10-25

Comprehensive

CLOSEDOpened 2016-08-25

Harassment case

CLOSEDOpened 2016-05-04

Harassment case

Housing court

Landlord and related buildings

Registered owner

X.D.YANG & DAUGHTER LLC

Head officer

DA YANG

Managing agent

OMG MGMT INC

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

1518 70 STREETBROOKLYN 512 48 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

Speculation watch

·Bought and resold within a few years — rapid turnover is a common speculation signal

A pattern, not a prediction — many transfers are ordinary or between related companies.

Recorded sales

Mortgages / refinances

Last recorded sale2015-01-14 · $2,270,000

Most recent mortgage2021-07-07 · $658,689.49

Mortgage2021-07-07$658,689.49

borrower X.D. YANG & DAUGHTER LLC · lender EASTERN FUNDING LLC

Mortgage2015-02-27$1,500,000

borrower X.D. YANG & DAUGHTER LLC · lender EASTERN FUNDING LLC

Sale2015-01-14$2,270,000

MAR-SHAM, INC. → X.D. YANG & DAUGHTER, LLC

Sale2014-02-11$1,900,000

RODRIGUEZ, SANTIAGO → MAR-SHAM, INC.

Mortgage2014-02-11$500,000

borrower MAR-SHAM, INC. · lender RODRIGUEZ, SANTIAGO

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

The lien was sold in the 2019 tax-lien sale

The owner's unpaid property taxes (and possibly water charges) went unresolved through a series of notices, and the debt reached the city's Final Sale list — the lien was sold to a private collector who can add interest and fees.

Years listed

2025

Most recent

10-day noticeincl. property tax2025-05-01

30-day noticeincl. property tax2025-04-01

60-day noticeincl. property tax2025-03-01

90-day noticeincl. property tax2025-02-01

From DOF lien-sale lists (2019–2025). Financial distress is not proof of neglect, but owners behind on what they owe the city more often let repairs slide. Debt may since have been paid.

City debt & tax-lien sale