4711 5th Avenue, Brooklyn, NY 11220

The four-story, 12-unit residential building at 4711 5th Avenue in Sunset Park, owned by Lilan Wu, has experienced several significant maintenance issues in recent years, most notably regarding heating systems and water infrastructure. The property has faced recurring heat and hot water problems, with multiple emergency complaints logged between November 2024 and February 2024, though inspections typically found systems restored upon inspector contact. November 2024 inspections revealed multiple violations in apartment 3R, including water leaks at various locations, mold issues, and problems with paint deterioration, including the presence of lead-based paint in the door frame area.

These violations, classified as A and B under Housing Maintenance Code, indicate active maintenance concerns requiring correction. The building has a history of access issues during inspections, as seen in complaints from 2019-2020 regarding gas piping, construction work, and plumbing work, though more recent complaints in 2024-2025 show improved accessibility for inspections. Safety concerns were documented in April 2025, including issues with carbon monoxide detectors, smoke detectors, and door security, all categorized as emergencies. Water-related complaints have been persistent, with violations noted for both heavy flow and slow leaks in July 2024.

Despite these challenges, the building has maintained a clean record regarding pest infestations, with no bedbug or rodent issues reported in recent years, and regular bedbug reporting indicating zero infested units across multiple reporting periods from 2020 to 2025. The property, built in 1923, has undergone various inspections and received multiple violations over its history, with the most recent concerning lead paint hazards and water damage in apartment 3R. While the building continues to face maintenance challenges, particularly with heating systems and water infrastructure, there is evidence of ongoing inspections and attempts to address violations, though some remain open as of the latest data. The building's age and history as a "New Law Tenement" can explain some of the infrastructure challenges, though this status also implies certain regulatory responsibilities for the owner.