509 Throop Avenue, Brooklyn, NY 11221

The property at 509 Throop Avenue in Bedford-Stuyvesant, owned by Stuart Van Leenen, is a four-story, four-unit old law tenement building constructed in 1905. The building has experienced persistent maintenance and sanitation challenges, particularly in the past two years, with multiple complaints and violations related to plumbing issues, unsanitary conditions, and pest control. In early 2025, there were three significant complaints regarding water supply issues and garbage storage problems, both of which were closed due to inspection access issues.

The building has also faced rodent management challenges, with multiple rodent sightings reported between 2024 and 2025, including an ongoing investigation as of May 2024. Recent inspections have consistently indicated rat activity, with compliance checks showing violations. The property has a documented history of various maintenance issues, including a bedbug reporting record showing zero infestations in the past seven years (2019-2025).

Several Department of Buildings complaints in 2025 raised concerns about construction work and occupancy compliance, though initial inspections did not confirm violations. The building's 2024 housing maintenance code violation notice indicated a failure to file an annual bedbug report, while multiple housing maintenance code complaints in 2025 related to garbage storage and water supply issues. All these complaints were ultimately closed, though some required follow-up actions or re-reporting to address access issues. While the building's bedbug history suggests this particular pest has not been a problem, the ongoing rodent issues and intermittent plumbing and sanitation complaints indicate persistent maintenance challenges requiring attention.