237 East 121 Street
This building has a severe track record, and our model predicts major ongoing maintenance failures.
This building has 25 recorded HPD violations, at or below the East Harlem average of 28.1.
Is 237 East 121 Street 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.
The four-story, 12-unit building at 237 East 121st Street in East Harlem, owned by Nelson Erazo and constructed in 1920, has experienced ongoing plumbing issues, with significant consolidation of complaints in July 2024 involving toilets, sinks, bathtubs/showers, and water supply problems across multiple units. The building has a history of heating and water system challenges, with multiple violations and complaints related to water supply, including emergencies in 2020 and 2021 that required HPD intervention. The property has faced several maintenance issues over the years, including a regulated bedbug report requirement violation in April 2024, though recent inspections indicate no current infestations. Between 2021 and 2023, there were persistent violations related to water leaks, building safety, and maintenance issues, particularly affecting the common areas and unit 2B. Notably, there are multiple active Department of Buildings violations from 2019 through 2023 regarding failure to file required inspections, including several for low-pressure inspection requirements.
The building underwent rodent control inspections from 2018 to 2025, with most recent inspections in 2024-2025 showing "Passed" results except for a failed compliance inspection in 2022 due to unspecified reasons. There have been several concerning patterns in the building's history, including multiple illegal conversion complaints between 2018-2019, though these complaints were frequently marked as "Inspector Unable to Gain Access" during inspections. The most pressing current concerns involve the active Department of Buildings violations regarding inspection compliance, with penalties totaling $10,000 for failure to provide unobstructed exit passageways and various other maintenance violations. Recent complaints and inspection results suggest some improvement in building conditions, particularly regarding pest control, as evidenced by the passed rodent inspections and the 2024 bedbug reporting showing zero infestation cases.
How 237 East 121 Street'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 1682 buildings in this neighborhood, 555 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.
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What's in the 237 East 121 Street report
| Total units | 12 |
|---|---|
| Floors | 4 |
| Year built | 1920 |
| Gross area | 8,000 sq ft |
| Building class | — |
| Tax abatement | None |
Violations & complaints per year — solid line is historical record, dashed line is AI projection.
237 East 121 Street'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.
New York, NY 10035
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237 East 121 Street event timeline
Violations, complaints, fines, and permits — the most recent records on file, in order.
See all 28 events
Full history back to 2018 — violations, complaints, permits, bedbug filings, and more.
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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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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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