12 Underhill Avenue, Brooklyn, NY 11238

12 Underhill Avenue is a 4-story, 8-unit Old Law Tenement building in Prospect Heights, constructed in 1930 and currently owned by Tom Rosenberg. The building has experienced persistent pest and maintenance issues over the past two years, with particularly notable problems in recent months. As of June 2025, there is an open rodent complaint, continuing a pattern of rodent activity that has been consistently documented through multiple inspections and complaints from 2023 to 2025.

The building has also faced significant maintenance challenges, including flooding issues in 2024, mold problems in both 2023-2024, and a notable rat sighting in June 2025. Various repairs have been mandated through housing violations, including roof leak repairs and pest abatement requirements in Apartment 4R, with violations issued and correction timelines provided. The property has maintained a relatively stable record regarding bedbug infestations, with no reported cases or eradication efforts required between 2019 and 2024.

Historical complaints dating back to 2018 include issues with water leaks, mold, and heating problems, though many of these have been addressed and closed through proper corrections. The building's management has generally engaged with the appropriate city agencies to address violations, with some recent complaints remaining unresolved due to inspection access issues. Notably, there has been no documented change in ownership or significant alterations to the building's structure since its construction in 1930, and no recent complaints regarding heat or hot water have been recorded since 2021, suggesting these systems are currently functioning properly.