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.
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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.
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
311 complaints from tenants
Neighborhood noise
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.
DOB building violations
Evictions
No executed evictions on record for this building.
Housing court
Landlord and related buildings
No other buildings found sharing this building's registered contact.
Unpaid city fines
No DOB/ECB violations on record for this building.
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.
311 complaints from tenants
24
All time
0
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.
Neighborhood noise
Higher than averagevs. NYC apartment blocks
751
Noise reports · last 12 mo
63
≈ per month
70
% 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 crime
About averagevs. NYC apartment blocks
234
NYPD reports · last 12 mo
20
≈ 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.
DOB building violations
0
Active
1
On record
0
Active, last 3 yrs
No active DOB violations.
Housing court
1
Cases on record
0
Open now
1
Tenant-brought
0
Harassment found
0
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
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.
9
Recorded sales
7
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.