520 Union Avenue, Brooklyn, NY 11211

520 Union Avenue is a three-story, five-unit Old Law Tenement building in Williamsburg, owned by Alex Kaskel and dating back to 1928. The property has experienced recurring heating system issues, with building-wide heat and hot water complaints logged in May and June 2023, classified as emergencies. Previous maintenance concerns emerged in 2021, including multiple issues documented in May of that year involving water leaks, ceiling problems, and unsanitary mold conditions, though these complaints resulted in no violations after inspection.

The building has documented violations related to bedbug reporting requirements for 2021 and 2022, though recent filings for 2023-2024 show no infestation issues. A series of open violations specific to Apartment 3R from May 2021 remain notable, including problems with ceiling repair needs, plaster surface condition, water leaks, and door self-closing mechanisms, which were officially recorded as Class B and C violations. The building's compliance history shows a mix of resolved and ongoing issues, with the most recent bedbug reports (2023-2024) indicating no infestation problems.

While the property has undergone various inspections and received multiple service complaints, many issues have been addressed through regular inspections and maintenance actions, with no recorded violations for the past two years. The heat and hot water issues from 2023 represent the most recent and potentially significant maintenance concern, though these complaints were ultimately closed under the Housing Maintenance Code. The building has also undergone rodent inspections in 2018, with initial rat activity followed by a passed compliance inspection in August 2018.