643 Madison St

Brooklyn, NY

BBL 3-01641-0062BIN 3044962

Concern level1 of 4

Low

011 open HPD violation(s)

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 18 stabilized units with New York State for 2018 — essentially all of the building's 6 apartments.

421-a tax benefit · expires ~2033

A 421-a building's rent stabilization is tied to this tax benefit and generally ends when it expires — here, around 2033 (approximate, from DOF exemption records). Confirm your unit's status with NYS HCR.

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

2015

Built

Floors

Residential units

Walk-up apartments

Type

The building

This building and the landlord's others

This building

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 B · HAZARDOUSApt 1BIssued 2021-12-095+ YRS OLD

§ 27-2017.3 HMC: TRACE AND REPAIR THE SOURCE AND ABATE THE VISIBLE MOLD CONDITION... APPROXIMATELY 1 SQ.FT. AT NORTH WALL IN THE 1st ROOM FROM EAST AT NORTH LOCATED AT APT 1B UPPER LEVEL, 1st STORY, APARTMENT AT NORTH ORIGINAL VIOLATION 14487980 ISSUED 09-AUG-21 HAS BEEN UPGRADED TO CLASS B PER ADMINISTRATIVE CODE §27-2017.3a(3)(a) or (b).

Status: Defect letter issued

HPD housing-maintenance violations

311 complaints from tenants

All time

Last 12 months

Heat/Hot Water13

Unsanitary Condition7

Appliance1

Door/Window1

General1

Water Leak1

Heat/Hot WaterApartment Only2023-01-20 · closed

Heat/Hot WaterApartment Only2022-12-26 · closed

Heat/Hot WaterEntire Building2022-12-21 · 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

751

Noise reports · last 12 mo

≈ per month

% from neighbors

Residential527

Street/Sidewalk125

Unspecified41

Vehicle32

Commercial25

Helicopter1

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

About averagevs. NYC apartment blocks

234

NYPD reports · last 12 mo

≈ per month

Felony89

Misdemeanor113

Violation32

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 6 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

No active DOB violations.

DOB building violations

Evictions

No executed evictions on record for this building.

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 2023-01-23

Heat / hot water

Housing court

Landlord and related buildings

No other buildings found sharing this building's registered contact.

Landlord and related buildings

Unpaid city fines

No DOB/ECB violations on record for this building.

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 sale2016-09-06 · $4,900,000

Most recent mortgage2021-01-08 · $1,959,520.59

Mortgage2021-01-08$1,959,520.59

borrower HERKIMER I ESTATES LLC, MADISON PARK ESTATES LLC, HERKIMER II ESTATES LLC, K STREET ESTATES LLC · lender ARBOR COMMERCIAL FUNDING I, LLC

Sale2016-09-06$4,900,000

643 MADISON STREET LLC → MADISON PARK ESTATES LLC

Mortgage2016-09-06$8,960,000

borrower HERKIMER II ESTATES LLC, MADISON PARK ESTATES LLC, HERKIMER I ESTATES LLC · lender NORTHFIELD BANK

Sale2013-11-26$1,085,000

643 MADISON LLC → 643 MADISON STREET LLC

Sale2012-09-27$555,000

BEST RE LLC → 643 MADISON LLC

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