450 Amsterdam Avenue, Manhattan, NY 10024

450 Amsterdam Avenue is a five-story, 8-unit, 1891 Old Law Tenement building located in Manhattan's Upper West Side and currently owned by John McCarthy. The building has experienced several significant maintenance issues in recent years, with the most pressing being a heat and hot water outage in April 2025, which was resolved shortly after inspection.

Other notable incidents include a cooking gas supply issue in February 2020 (3N apartment), unsanitary garbage storage concerns in September 2018, and a water leak complaint. The building has maintained a regular bedbug reporting record from 2019-2024, consistently showing zero infested units during each reporting period, suggesting effective pest management practices.

The property has undergone various inspections and maintenance works, with the most recent violation documented in October 2023 regarding a front entrance door self-closing mechanism, and an active Environmental Control Board violation from May 2023 concerning an unsecured window A/C unit on the 4th floor with a $500 penalty. Historical data shows generally good rodent control compliance, with most inspections passing since 2019, though there was one instance of rat activity noted in August 2018. The building's maintenance history indicates some recurring issues with basic services, particularly heating and water systems, though many past violations and complaints have been properly addressed and closed through official channels, including multiple permits issued in 2018 for various maintenance works.