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 2026-02-24
Tenant action
CLOSEDOpened 2013-04-18
Access Warrant - Non-Lead
Unpaid city fines
$0
Balance due (active)
0
Active violations
0
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.
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.
The building
1864
Built
5
Floors
19
Residential units
Condominium
Type
Rent regulation
Likely rent-stabilized
The owner registered 5 stabilized units with New York State for 2023 — of about 19 apartments.
19
20
21
22
23
2019 — 8 units registered2023 — 5
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 recorded sales or mortgages found in ACRIS for this lot.
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.
Landlord and related buildings
Registered owner
DIAMOND ON DUANE CONDOMINIUM
Head officer
DEVIN LEAHY
Managing agent
CORNERSTONE MGMT SYSTEMS INC
No other buildings found sharing this building's registered contact.
This building and the landlord's others
This building
DOB building violations
6
Active
99
On record
1
Active, last 3 yrs
ACTIVE · C-CONSTRUCTION OTHER OPTIONAL2025-08-15
DEPARTMENT OF BUILDINGS ORDERS YOU TO STOP ALL WORK IMMEDIATELY UNDER APPLICATION #103163489 DUE TO APPLICANT WITHDRAWAL.
ACTIVE · E-ELEVATOR ELEVATORREQUIRED2021-03-11
ACTIVE · E-ELEVATOR ELEVATORREQUIRED2021-03-11
311 complaints from tenants
40
All time
32
Last 12 months
Heat/Hot Water27
General7
Plumbing2
Safety2
Door/Window1
Water Leak1
Heat/Hot WaterApartment Only2026-10-13 · closed
GeneralCooking Gas2026-10-10 · open
Heat/Hot WaterApartment Only2026-10-10 · closed
Complaints record what a tenant reported, not a finding by the city. "Closed" often means the inspector could not gain access.
Neighborhood crime
About averagevs. NYC apartment blocks
264
NYPD reports · last 12 mo
22
≈ per month
Felony110
Misdemeanor122
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 noise
About averagevs. NYC apartment blocks
384
Noise reports · last 12 mo
32
≈ per month
27
% from neighbors
Unspecified155
Residential104
Street/Sidewalk61
Commercial39
Vehicle25
311 noise complaints within about 1,000 ft (a few blocks) in the last year. Most reports here are about outdoor noise (mostly unspecified) — 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.
HPD housing-maintenance violations
50
Open now
55
On record
30
Open Class C
11
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.
CLASS C · IMMEDIATELY HAZARDOUSApt 5EIssued 2026-10-15RENT-IMPAIRING
§ 27-2070 ADM CODE PROVIDE AN ADEQUATE SUPPLY OF GAS TO THE FIXTURES AT GAS RANGE IN THE ENTIRE APARTMENT LOCATED AT APT 5E, 5th STORY, 2nd APARTMENT FROM EAST AT SOUTH
Status: Notice issued, not yet certified
CLASS C · IMMEDIATELY HAZARDOUSIssued 2026-10-02
§ 27-2033 ADM CODE PROVIDE READY ACCESS TO BUILDINGS HEATING SYSTEM DOOR LEADING TO BOILER ROOM LOCKED AT CELLAR
Status: Notice issued, not yet certified
CLASS C · IMMEDIATELY HAZARDOUSApt 5BIssued 2026-10-01RENT-IMPAIRING
§ 27-2031 ADM CODE PROVIDE HOT WATER AT ALL HOT WATER FIXTURES IN THE ENTIRE APARTMENT LOCATED AT APT 5B, 5th STORY, 1st APARTMENT FROM SOUTH AT WEST
Status: Notice issued, not yet certified
CLASS C · IMMEDIATELY HAZARDOUSIssued 2026-10-01
§ 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 MISSING AT PUBLIC HALL, 1st STORY
Status: Notice issued, not yet certified
Evictions
No executed evictions on record for this building.
Concern level4 of 4
Severe
0130 open class-C HPD violations (immediately hazardous) across 19 apartments
0229 of those issued in the last 3 years
0323 open rent-impairing violation(s)
046 active DOB 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.
