421 Lenox Avenue, Manhattan, NY 10027
The five-story, 8-unit tenement building at 421 Lenox Avenue in Harlem, owned by John Catalic and constructed in 1910, has experienced several maintenance and safety issues over recent years. The most significant recent concerns include multiple reports of unsanitary conditions related to pests and garbage storage, with the latest complaints filed in July 2024. The building's systems and structure have shown recurring problems, including electrical issues (July 2024), ceiling problems (July 2024), window frame concerns (July 2024), and hallway maintenance needs.
Of particular note is an open violation from June 2023 related to refuse accumulation in the front courtyard, and open violations from June 2022 regarding the public stair walls on the 5th story. The building has a documented history of heating issues, with a heat outage reported in January 2023, though these problems were reportedly resolved according to tenant reports. Previous year records show multiple violations that have since been closed, including issues with carbon monoxide detectors and smoke alarms in Apartment 1 in 2021, as well as a problematic electromagnetic locking device at the building entrance noted in 2019.
The building's infrastructure has undergone some scrutiny, particularly regarding its boiler system, with a 2020 Department of Buildings complaint leading to an Environmental Control Board violation for various boiler room issues, though this was resolved with a penalty. Recent rodent inspections present a mixed picture of pest management, with "Passed" results in some inspections (2025, 2024, 2023) but also instances of "Rat Activity" noted in 2024 and 2022. Despite these challenges, the building has consistently filed zero bedbug infestation reports in recent years, with the most recent reports for 2024 showing no infested or re-infested units. The property has maintained a regular schedule of inspections and compliance reporting, with most recent complaints being addressed promptly, though some violations remain open as of the current date.
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Building Characteristics
Total units | 8 |
---|---|
Year built | 1910 |
Total area | 10024 sq ft |
Floors | 5 |
Tax Abatements | None |
Building Class | OLD LAW TENEMENT |

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Key Building Statistics
Included Addresses
- 419 Lenox Ave, New York, NY 10027
- 101 West 131st St, New York, NY 10027
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