681 Classon Avenue, Brooklyn, NY 11238

681 Classon Avenue is a 4-story, 8-unit old law tenement building built in 1930 and currently owned by Nathan Schwarcz. The building has experienced recurring heating and hot water issues throughout 2025, with multiple complaints filed between March and May of that year, including some that prevented HPD inspectors from gaining access to verify the problems. The property has also faced pest-related challenges, with several complaints about unsanitary conditions and pest issues in spring 2025, though inspections were often unable to be completed.

A significant cluster of 2024 complaints centered around building stability concerns, with multiple reports of shaking or vibrating conditions, though no violations were found upon inspection. The building's maintenance history shows a variety of issues that have required attention over recent years. In late 2023, inspection results revealed several violations in apartment 1L, including problems with plaster surfaces, paint, kitchen fixtures, and window mechanisms, though these were subsequently certified as corrected.

The property has also faced challenges with its garbage and recycling storage areas, as evidenced by multiple service requests for unsanitary conditions throughout 2025. While the building has generally maintained compliance with bedbug reporting requirements, with no infestations reported in recent years, rodent inspections have shown varying results, with the most recent inspection in July 2025 indicating rat activity. The building's condition has prompted several emergency and non-emergency housing maintenance code complaints, with particular attention needed for heating systems, building security (including access to the heating system), and various maintenance issues requiring repairs or replacement of fixtures and surfaces.