604 Union Avenue, Bronx, NY 10455

604 Union Avenue is a four-unit, four-story Old Law Tenement building located in Longwood and owned by Vivian Sze. The building, constructed in 1907, has experienced several significant maintenance issues over recent years, with particular attention required to its boiler system. Most notably, in May 2022, the building faced violations related to an unregistered boiler, resulting in both an Environmental Control Board violation (active as of May 2022 with a $312 penalty) and a Department of Buildings complaint regarding defective/inoperative boiler systems.

While there was also a gas utility referral complaint in March 2019, the inspector was unable to gain access for evaluation. A subsequent boiler-related violation was recorded in April 2023 for failure to file the 2022 external low-pressure inspection, though this violation was later dismissed. The building's pest management record shows consistent attention to bedbug reporting requirements, with the most recent 2024 report (covering the period from November 2023 to October 2024) indicating no infested or eradicated units.

This pattern of zero infestations has been maintained throughout all reporting periods since 2019, suggesting effective pest management practices. Rodent inspections have shown a mixed record, with the most recent compliance inspection in November 2023 passing, though there was an initial rat activity report in September 2023. Previous rodent inspections from 2010 through 2018 all passed, indicating generally good pest control measures despite the recent rat activity report. The building's records reflect regular attention to maintenance requirements, though the boiler system remains a recurring area of concern requiring monitoring.