3621B Greystone Avenue
While historically clean, our model detects a rising risk of severe maintenance issues in the next 12 months.
This building has 1 recorded HPD violations, at or below the Fieldston average of 29.5.
Is 3621B Greystone Avenue rent-stabilized?
Rent stabilization caps how much your rent can rise and protects your right to renew. Here's how this building scores on the four signals that usually point to it.
Based on public NYC records. Not legal advice — verify with the DHCR (Division of Housing and Community Renewal) at apps.hcr.ny.gov.
This three-story, four-unit residential building located at 3621B Greystone Avenue in Fieldston was constructed in 1980 and is currently owned by Brendan Osullivan. The building has experienced recurring maintenance issues, particularly with its heating system, with multiple complaints about lack of heat and hot water in recent years. Most notably, there have been three heat/hot water complaints in the most recent year (2024-2025) alone, with the most recent occurring in January 2025, which was classified as an emergency situation. The building has also had issues with electrical power outages, unsanitary conditions including pest problems, and water supply plumbing issues between late 2024 and early 2025. These complaints often required HPD intervention, though several inspection attempts were met with tenant access issues.
How 3621B Greystone Avenue's risk score is calculated
We trained a model on 7 years of city inspection data — HPD violation filings, tenant complaints, and owner track records across their entire portfolio. It estimates the probability that HPD inspectors will find serious or dangerous violations at this address in the next 12 months. Lower % = safer.
What the score means for you
Out of 61 buildings in this neighborhood, 35 have a higher predicted risk.
violations
(1–9)
(10+)
What's driving this score
These are the three data points that most influenced this building's score — ranked by how much weight the model placed on each one.
Don't stop here — this is just the surface.
The full report adds 30+ data sets, complete violation history, landlord portfolio and court record. Or keep reading free:
What's in the 3621B Greystone Avenue report
| Total units | 3 |
|---|---|
| Floors | 3 |
| Year built | 1980 |
| Gross area | 3,100 sq ft |
| Building class | — |
| Tax abatement | None |
Violations & complaints per year — solid line is historical record, dashed line is AI projection.
3621B Greystone Avenue's landlord & ownership
The people and companies registered to this building, the other properties they run, and their court record. A landlord's wider portfolio is often the best predictor of how your building will be treated.
Registered contact for this building.
Bronx, NY 10463
Other properties owned.
Portfolio data hidden
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3621B Greystone Avenue event timeline
Violations, complaints, fines, and permits — the most recent records on file, in order.
See all 16 events
Full history back to 2021 — violations, complaints, permits, bedbug filings, and more.
Unlock full timelineFull data for 3621B Greystone Avenue apartments
30+ public city datasets for this address — searchable and sortable.
What this is
Housing code violations issued by HPD against property conditions. Non-compliance with NYC's Housing Maintenance Code can result in violations and fines.
| Inspection Date | Class | Category | Description | Status |
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What this is
Complaints filed with HPD about conditions violating the NYC Housing Maintenance Code or NY State Multiple Dwelling Law.
| Received | Category | Type | Status | Apartment |
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What this is
Service requests logged daily with the city through 311 and tracked to resolution. These are complaints that can be directed to specific city agencies.
| Created Date | Problem | Problem Detail | Agency Name | Status |
|---|---|---|---|---|
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What this is
All complaints received by the Department of Buildings, including those from 311 and complaints entered directly by DOB staff.
| Filed | Number | Status | Category | Disposition |
|---|---|---|---|---|
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What this is
Civil penalties and violation notices issued by the Department of Buildings for construction and building code violations.
| Issue Date | Category | Type | Description | Disposition |
|---|---|---|---|---|
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What this is
Summonses and penalties adjudicated by OATH (Office of Administrative Trials & Hearings) and the Environmental Control Board. DOB enforcement cases that have been heard and decided.
| Issue Date | Violation # | Status | Description | Penalty |
|---|---|---|---|---|
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Executed eviction warrants in NYC from 2017-present. Records of completed residential and commercial evictions processed through housing court.
| Executed Date | Docket # | Apartment | Type | Marshal |
|---|---|---|---|---|
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Recorded real estate transactions and property sales. Public records of building transfers and changes in ownership.
| Sale Date | Price | Building Class | Neighborhood | Apartment |
|---|---|---|---|---|
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What this is
Property owner reports of bedbug infestation status required by NYC law. Building owners must file annual reports on bedbug treatment and infestation history.
| Filing Date | Infested Units | Eradicated | Re-infested | Period End |
|---|---|---|---|---|
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What this is
NYC Department of Health & Mental Hygiene rodent inspection results. Records of inspections for rat and rodent infestation signs.
| Inspection Date | Type | Result |
|---|---|---|
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Unlock full reportWhat this is
Construction and demolition permits issued by the Department of Buildings. Required for legal building, construction, and demolition activities in NYC.
| Filing Date | Type | Work | Floor | Description | Status | Issued |
|---|---|---|---|---|---|---|
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Electrical Permits requires a full report
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Unlock full reportHow 3621B Greystone Avenue compares to the neighborhood
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