3910 4th Avenue, Brooklyn, NY 11232

The 8-unit, 4-story tenement building at 3910 4th Avenue in Sunset Park, built in 1906 and currently owned by Gregory Kelenzon, has experienced recurring pest management challenges over the past decade. Most notably, the building has recent open violations regarding bedbug reporting requirements for 2022-2024, though official reports from 2020-2021 indicate successful eradication of bedbugs from all 8 units.

The property has documented rat activity as recently as April and May 2025, following previous infestations recorded in 2009-2010, suggesting an ongoing rodent management issue despite multiple bait applications. Significant maintenance and safety concerns have emerged periodically, particularly in 2019-2020, when multiple emergency complaints were filed including issues with heating, fire escape systems, and stairways. The building has also faced plumbing and electrical problems, with investigations revealing various violations related to water heating systems and lighting.

More recent inspection records from 2024-2025 indicate continued maintenance challenges, including access issues for inspectors and previously noted concerns about entrance security and general upkeep. Although some violations have been closed and repairs documented, the persistence of certain issues, particularly regarding rodent presence and bedbug reporting compliance, suggests ongoing maintenance attention is required. The building's age and history of maintenance violations highlight the importance of continued oversight and regular maintenance to address resident concerns promptly and effectively.