131 Boerum Street, Brooklyn, NY 11206

As of July 2025, 131 Boerum Street is a 5-story building in Williamsburg, owned by Shlomo Karpen and originally constructed in 1920, though it currently holds a "Hereafter Converted Class A" designation with 0 units on record. The property has experienced persistent maintenance and safety issues over recent years, most notably a significant rat infestation problem, with multiple 311 complaints and inspections by the Department of Health confirming violations in 2025. The building has also faced recurring heat and hot water issues, with complaints in 2024-2025 indicating problems affecting both individual apartments and the entire building, though inspections often revealed systems had been restored before proper verification could occur.

Major violations were recorded in late 2023 related to Unit 1A, including concerns about temperature, structural issues, and various maintenance problems such as broken plaster, defective caulking, and water leaks. The building's conversion history has led to multiple investigations, with serious violations noted in 2024 regarding illegal SRO conversions in Unit 1B, resulting in substantial fines. Elevators, fire safety systems, and other building infrastructure have also been points of concern, with multiple complaints about inadequate services and safety features between 2022-2025.

However, the building has maintained a consistent record of being bedbug-free, with no reported infestations in the past five years. While some violations have been resolved or dismissed, others remain active or were settled with penalties, particularly regarding elevator maintenance and building code compliance. The property has also undergone several inspections with confirmed rodent activity in 2024-2025, indicating an ongoing pest control challenge.