5609 4th Avenue, Brooklyn, NY 11220

5609 4th Avenue is a 6-unit, 3-story residential building located in Sunset Park, constructed in 1983 and currently owned by Jennifer Lau. The building has experienced recurring issues with heat and hot water, with the most recent complaints filed in September 2023, marking the second heat-related incident in that year alone. In 2020, the property faced multiple maintenance challenges, including water leaks, window frame problems, door issues, and plumbing concerns involving steam pipes, all of which were investigated by the Department of Housing Preservation and Development (HPD) but did not result in violations.

More seriously, apartment 1B encountered several significant violations in 2020, including mold issues in the bathroom, problems with self-closing doors, and concerns about fire egress. These were eventually resolved, with the last noted violation being related to a carbon monoxide detector in January 2020. The building has maintained an active bedbug reporting record from 2019 through 2024, consistently indicating zero infested units, suggesting effective pest management practices.

The property's maintenance history shows a pattern of responsive management to reported issues, with most complaints being investigated and closed, though often without documented improvements in the resolution descriptions. The most recent bedbug report for 2024-2025 (filed December 2024) continues the trend of no reported infestations, while earlier violations related to bedbug reporting requirements were closed in February 2022. The building's heating system has been a recurring concern, with multiple complaints about inadequate heat and hot water in both 2020 and 2023, some of which were classified as emergencies by HPD. While most of the 2020 violations were resolved, the pattern of service requests suggests ongoing maintenance challenges, particularly regarding building systems and fixtures.