Not found in the DOF tax-bill records nor the 2024 DHCR registered building list. Absence isn't proof a unit is unregulated — buildings can be missing or newly deregulated.
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.
No marshal-executed evictions on record for this building. Eviction cases filed in court but not carried out aren't included.
OATH/ECB violations and fines
$0
Balance due (active)
0
Active violations
0
Lost by default
These are separate from DOB violations. They are summonses written by DOB inspectors and decided at a hearing before OATH, the city's administrative court (formerly the Environmental Control Board), and they can carry a fine. "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.
Bedbug history
No bedbugs reported
The owner filed 2 annual bedbug reports and reported no infested units. Filing with zero infestations is the compliant, reassuring case.
311 complaints from tenants
20
All time
18
Last 12 months
Heat/Hot Water5
Plumbing5
Water Leak3
Unsanitary Condition3
Door/Window2
Electric1
Appliance1
Complaints record what a tenant reported, not a finding by the city. "Closed" often means the inspector could not gain access.
PlumbingBathtub/Shower2026-08-26 · closed
Water LeakHeavy Flow2026-08-26 · closed
PlumbingBathtub/Shower2026-08-26 · closed
Housing court: repair & harassment cases
No HPD housing-court cases on record for this building.
These are cases HPD is a party to, mostly tenants suing to force repairs or stop harassment. Eviction cases landlords file against tenants are not in the city's open data, so they don't appear here; the Evictions section shows only evictions a marshal carried out.
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.
Neighborhood crime
Higher than averagevs. NYC apartment blocks
292
NYPD reports · last 12 mo
24
≈ per month
Felony107
Misdemeanor147
Violation38
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.
HPD housing-maintenance violations
15
Open now
31
On record
2
Open Class C
3
Open Class B
10
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. HPD writes a separate violation for each room or spot, so one inspection can produce several near-identical entries; those are grouped below by apartment and date.
CLASS C · IMMEDIATELY HAZARDOUSIssued 2026-09-10
§ 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 SIGNAGE PRESENT BUT INFORMATION MISSING AT PUBLIC HALL, 1st STORY
Status: Notice issued, not yet certified
CLASS C · IMMEDIATELY HAZARDOUSApt 1Issued 2026-06-11
HMC ADM CODE: § 27-2017.4 ABATE THE INFESTATION CONSISTING OF MICE LOCATED AT APT 1, 1st STORY
Status: Notice issued, not yet certified
CLASS B · HAZARDOUSApt 1Issued 2026-09-25
§ 27-2017.3 HMC: TRACE AND REPAIR THE SOURCE AND ABATE THE VISIBLE MOLD CONDITION... LESS THAN 10 SQ FEET AT DOOR FRAME AT EAST IN THE FOYER LOCATED AT APT 1 LOWER LEVEL, 1st STORY, 1st APARTMENT FROM EAST AT SOUTH ORIGINAL VIOLATION 18952370 ISSUED 24-MAY-26 HAS BEEN UPGRADED TO CLASS B PER ADMINISTRATIVE CODE 27-2017.3a(3)(a) or (b).
Status: Civ14 Mailed
CLASS B · HAZARDOUSApt 1Issued 2026-06-11
§ 27-2005 ADM CODE PROPERLY REPAIR WITH SIMILAR MATERIAL THE BROKEN OR DEFECTIVE PORCELAIN GLAZE AT BATHTUB IN THE BATHROOM LOCATED AT APT 1, 1st STORY
Status: Notice issued, not yet certified
Concern level3 of 4
High
012 open class-C HPD violations (immediately hazardous) across 3 apartments
022 of those issued 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 OATH/ECB 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.
DOB building violations
0
Active
1
On record
0
Active, last 3 yrs
Violations issued by the Department of Buildings that the owner must correct. Most don't carry a fine on their own; summonses that go to a hearing and can be fined are listed separately under OATH/ECB.
No active DOB violations.
Landlord and related buildings
Registered owner
990-992 MADISON ST BLACKDIAM PROPERTIES LLC
Head officer
YOEL SCHWARTZ
Managing agent
YOEL SCHWARTZ
3 other buildings share this owner's registration contacts. Shared contacts suggest common control, but they are not proof of ownership.
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.
borrower BLACKDIAM PROPERTIES LLC · lender MORTGAGE ELECTRONIC REGISTRATION SYSTEMS, INC., THE LOAN STORE, INC.
Mortgage2016-07-14$2,400,000
borrower BLACKDIAM PROPERTIES, LLC · lender SIGNATURE BANK
Sale1986-08-05no recorded price
CITY OF NEW YORK → BROOKS, SARA, BROOKS, WILLIE F
Sale1983-05-17no recorded price
COMMISSIONER OF FINANCE → NEW YORK CITY
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.