5921 4th Avenue, Brooklyn, NY 11220

The 4-story, 6-unit building at 5921 4th Avenue in Sunset Park, owned by Qi Wen Dong and constructed in 1931, has experienced several significant maintenance issues in recent years. Most notably, there was a concerning period in early 2022 with multiple emergency complaints including problems with stairs and doors, along with unsanitary conditions in garbage storage areas. The building has maintained a consistent record of heating system issues, with two separate defective/inoperative boiler complaints in late 2022, resulting in a $3,125 penalty for missing safety equipment.

More serious matters include open violations from January 2022 regarding broken entrance door locking devices and insufficient waste receptacles, though these violations were later closed. While the building has been compliant with annual bedbug reporting requirements since 2023 (showing zero infested units), recent rodent activity has been documented through multiple inspections in 2024-2025, suggesting ongoing pest management challenges. The property has an extensive history of building system violations, with the most recent records from 2024 showing non-compliance regarding external low pressure inspections, though these violations were dismissed in March 2025.

An active violation from 2019 regarding the failure to file the 2017 boiler inspection report remains open as of October 2023, indicating possible ongoing maintenance oversight. The building's environmental control board violations from 2022 underscore serious boiler safety concerns, while the bedbug inspections since 2023 suggest improved management of this specific issue. The property has shown some stability in more recent months, with no new bedbug infestations reported in 2025, though the recurring rodent activity noted in 2024-2025 remains a concern for resident comfort and health.