509 Hinsdale Street

Brooklyn, NY

BBL 3-03835-0021BIN 3085400

Concern level4 of 4

Severe

01On HPD's Alternative Enforcement Program — the city's most-distressed-buildings list
02160 open class-C HPD violations (immediately hazardous) across 21 apartments
03136 of those issued in the last 3 years
0419 open rent-impairing violation(s)
0512 active DOB violation(s)
064 evictions executed in the last 3 years
072 DOB fines lost by default (unpaid)

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 17), active since 2024-01-31. AEP is the city's response to its most distressed buildings — it had 2,394 open B/C violations at selection.

Rent regulation

Likely rent-stabilized

The owner registered 21 stabilized units with New York State for 2023 — essentially all of the building's 21 apartments.

2018 — 21 units registered2023 — 21

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

1930

Built

Floors

Residential units

Walk-up apartments

Type

The building

This building and the landlord's others

This building14 others linked to the same owner

HPD housing-maintenance violations

438

Open now

1586

On record

160

Open Class C

243

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: Notice issued, not yet certified

CLASS C · IMMEDIATELY HAZARDOUSApt 3AIssued 2026-10-13

HMC ADM CODE: § 27-2017.4 ABATE THE INFESTATION CONSISTING OF ROACHES IN THE ENTIRE APARTMENT LOCATED AT APT 3A, 3rd STORY, 1st APARTMENT FROM EAST AT SOUTH

Status: Notice issued, not yet certified

CLASS C · IMMEDIATELY HAZARDOUSApt 3AIssued 2026-10-13

HMC ADM CODE: § 27-2017.4 ABATE THE INFESTATION CONSISTING OF MICE IN THE ENTIRE APARTMENT LOCATED AT APT 3A, 3rd STORY, 1st APARTMENT FROM EAST AT SOUTH

Status: Notice issued, not yet certified

CLASS C · IMMEDIATELY HAZARDOUSApt 3CIssued 2026-08-28

§ 27-2037, 2038 HMC: PROVIDE A SAFE AND ADEQUATE SUPPLY OF ELECTRIC SERVICE TO THE FIXTURES LIGHT SWITCH AND LIGHT FIXTURE IN THE BATHROOM LOCATED AT APT 3C, 3rd STORY, 1st APARTMENT FROM WEST AT NORTH

Status: Notice issued, not yet certified

HPD housing-maintenance violations

311 complaints from tenants

454

All time

Last 12 months

Paint/Plaster83

Plumbing71

Unsanitary Condition62

Electric58

Door/Window49

Water Leak40

Flooring/Stairs28

Heat/Hot Water24

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

406

Noise reports · last 12 mo

≈ per month

% from neighbors

Residential348

Street/Sidewalk38

Vehicle9

Unspecified8

Commercial2

House of Worship1

311 noise complaints within about 1,000 ft (a few blocks) in the last year. Most reports here are about noise from inside buildings — neighbors, not the street. 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

Higher than averagevs. NYC apartment blocks

382

NYPD reports · last 12 mo

≈ per month

Felony111

Misdemeanor219

Violation52

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 8 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 · IMEGNCY-IMMEDIATE EMERGENCY ANYTHINGOPTIONAL2025-10-02

REMEDY:INSTALLATION OF SIDEWALK SHED AT EXPOSURE #1 APPROXIMATELY 100 LINEAR FEET, AND AT EXPOSURE #4 60 LINEAR FEET TO PROTECT THE PUBLIC Q

ACTIVE · C-CONSTRUCTION OTHER OPTIONAL2025-10-02

AT TIME OF INSPECTION OF 4 STORY BLDG. OBSERVED UNSAFE FA ADE CRACKED & SEPARATED MASONRY, DETERIORATED MORTAR JOINTS, SPALLED/LOOSE BRICK, CRACKED LINTELS/SILLS, UNSECURED AC UNITS, SHIFTED PARAPET/COPING STONES, WARPED WALLS. FIRE ESCAPE ANCHORAGE INTO COMPROMISED MASONRY REDUCING CAPACITY. MATERIALS STORED ON 3RD & 4TH FLOORS BLOCKING

ACTIVE · C-CONSTRUCTION OTHER OPTIONAL1997-12-12

DOB building violations

Evictions

Executed, all time

Last 3 years

2026-04-30Apt 2-Aresidential

2024-09-13Apt 2-Fresidential

2024-09-13Apt 2-Eresidential

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 2026-09-16

Tenant action

CLOSEDOpened 2026-01-15

Tenant action

CLOSEDOpened 2025-06-18

Tenant action

CLOSEDOpened 2023-02-21

Tenant action

Housing court

Landlord and related buildings

Registered owner

RIVERDALE AVENUE PROPERTIES LLC

Head officer

BARRY SINGER

Managing agent

DANIEL CALLER

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

160 WEST KINGSBRIDGE ROADBRONX 2487 GRAND AVENUEBRONX 2497 GRAND AVENUEBRONX 2500 WEBB AVENUEBRONX 2542A WHITE PLAINS ROADBRONX

Landlord and related buildings

Unpaid city fines

$18,780

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.

DEFAULTConstructionClass 12026-06-25$6,280 due

DEFAULTConstructionClass 12025-10-02$12,500 due

PlumbingClass 22019-05-31$1,250 penalty

ConstructionClass 22019-05-31$625 penalty

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 sale2017-08-02 · no recorded price

Most recent mortgage2017-08-02 · $3,174,172.64

Sale2017-08-02no recorded price

CRP 482 RIVERDALE AVENUE LLC → CRP 482 RIVERDALE AVENUE ANNEX LLC, CRP 482 RIVERDALE AVENUE LLC

Sale2017-08-02$8,000,000

CRP 482 RIVERDALE AVENUE ANNEX LLC, CRP 482 RIVERDALE AVENUE LLC → RIVERDALE AVENUE PROPERTIES LLC

Mortgage2017-08-02$3,174,172.64

borrower RIVERDALE AVENUE PROPERTIES LLC · lender CUSTOMERS BANK

Sale2012-04-27$4,175,000

RIVERDALE OWNER LLC → CRP 482 RIVERDALE AVENUE LLC

Mortgage2012-04-27$1,144,104.67

borrower CRP 482 RIVERDALE AVENUE LLC · lender CAPITAL ONE, NATIONAL 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

Flagged for the 2025 tax-lien sale

The owner owes enough in water and sewer charges to be listed for the city's tax-lien sale (most recently a 10-day notice). A listing can still be cured by paying or entering a payment plan.

Years listed

2025

Most recent

10-day noticewater/sewer only2025-05-01

30-day noticewater/sewer only2025-04-01

60-day noticewater/sewer only2025-03-01

90-day noticewater/sewer only2025-02-01

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