661 Flatbush Avenue, Brooklyn, NY 11225

661 Flatbush Avenue is a 12-unit, four-story old law tenement building constructed in 1910, currently owned by Michael Rothstein and located in the Prospect-Lefferts Gardens neighborhood. The building has experienced recurring maintenance issues over recent years, with the most recent complaints in 2025 involving pest problems that could not be inspected by HPD. The property has a documented history of pest infestations, including multiple pest-related complaints in 2021, 2022, 2023, and most recently in 2025.

Additional concerns have included water leaks (notably in 2022), mold issues (2022 and 2023), and plumbing problems, including toilet issues that resulted in violations in 2021. Recent inspections in 2023-2024 revealed several safety concerns that required attention, including the need for carbon monoxide and smoke detectors in Apartment 12, missing wire glass in the vestibule door, and defective self-closing doors at the first story vestibule. The building was also found to have various obstructions and cleanliness issues in common areas, including encumbrances on fire escapes and household items in stairwells, for which violations were issued and subsequently certified as corrected in late 2024.

On the regulatory front, there is currently an active violation from June 2023 regarding the failure to file the 2021 external low-pressure inspection documentation. Notably, the building has maintained a bedbug-free record since 2019, with no reported infestations in any unit over the past six reporting periods. A recent Department of Buildings inspection in July 2025 resulted in an Oath Violation being served for failure to maintain, though the specific nature of the violation was not detailed in the records.