5919 4th Avenue, Brooklyn, NY 11220

5919 4th Avenue is a 6-unit, 4-story New Law Tenement building located in Sunset Park, Brooklyn, owned by Weihua Wu and constructed in 1931. The building has experienced several notable maintenance and compliance issues over recent years, most concerning the second-floor apartment (2R), which has multiple open violations from 2020 related to safety and habitability including missing carbon monoxide detectors, defective smoke detectors, a water leak in the bathroom, mold issues, and problems with doors. The building has required multiple inspections for various plumbing and electrical issues, including wiring problems in 2022 and multiple plumbing complaints in 2020, though access for inspection was not granted in several instances.

A significant cluster of complaints was filed in March 2020 regarding various issues including water leaks, mold, and appliance problems, though many of these could not be inspected at the time. The property has undergone regular bedbug inspections between 2019 and 2025, with no reported infestations or need for eradication during these periods. Recent concerns include a food odor complaint in 2025 and a defective boiler situation that was resolved in May 2025.

Historically, the building has had rodent issues, with multiple inspections showing rat activity in 2011, though subsequent inspections in 2016 and 2018 passed. There are also records of three annual bedbug report violations from 2020-2024 that were eventually resolved. An illegal conversion complaint from 2019 was investigated but access was denied, and there is an active complaint regarding an illegal storefront sign from 2018, though this appears to be unrelated to the residential units.