421 East 73 Street
This building has a severe track record, and our model predicts major ongoing maintenance failures.
This building has 15 recorded HPD violations, above the Upper East Side average of 7.7.
Is 421 East 73 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.
This five-story, 18-unit Old Law Tenement building at 421 East 73rd Street, constructed in 1910 and currently owned by Frances Motta, has experienced several recurring maintenance issues, particularly regarding heat and hot water systems. Most recently, in January 2025, there were multiple complaints about building-wide heat and hot water problems. This followed a pattern of heat-related emergencies throughout 2023-2024, including both building-wide and apartment-specific incidents. The building has also faced animal-related issues, with multiple ongoing complaints in 2024 regarding an unpermitted animal facility, though specific details about the nature of these complaints aren't provided in the records.
The property has experienced various maintenance challenges, including moisture issues (a damp spot was reported in 2024), pest infestations (notably including cockroach problems in apartment 2A in 2024), and problems with self-closing doors in the public areas. Building inspections in 2024 revealed several violations related to public hall maintenance, including requirements for proper fire-retardant material and light-colored paint application. The building's environmental records show some concerns about rodent activity, with inspections in 2025 indicating rat activity, though previous inspections had passed. The property has a history of "Illegal Commercial/Manufacturing Use in Residential Zone" complaints between 2021-2023, though in most cases, inspectors were unable to gain access to verify these claims. Notably, a boiler-related violation was issued in April 2023, with a $500 penalty for failure to maintain the heating system and post required access information, though this was later resolved.
Recent bedbug reporting indicates a single affected unit in 2022-2023, with successful eradication. The building's permit history shows maintenance activity in late 2018, including plumbing and electrical work. Multiple housing maintenance code violations have been documented and generally resolved, though some issues have shown persistence over time, particularly regarding heating systems and pest control.
How 421 East 73 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 3066 buildings in this neighborhood, 337 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.
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What's in the 421 East 73 Street report
| Total units | 18 |
|---|---|
| Floors | 5 |
| Year built | 1910 |
| Gross area | 8,496 sq ft |
| Building class | — |
| Tax abatement | None |
Violations & complaints per year — solid line is historical record, dashed line is AI projection.
421 East 73 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 10021
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421 East 73 Street event timeline
Violations, complaints, fines, and permits — the most recent records on file, in order.
See all 24 events
Full history back to 2011 — 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.
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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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