151 West 80th Street, Manhattan, NY 10024

151 West 80th Street is a 5-story, 10-unit old law tenement building built in 1896 located in the Upper West Side, currently owned by Lauren Koch. The building has experienced significant recent activity, particularly in late 2024, when multiple construction-related violations were documented, including illegal electrical work, gas line modifications, plumbing work, and unauthorized apartment renovations in units 2F and 4F. These violations led to active Environmental Control Board citations with penalties totaling $4,300.

The building also has an active complaint from June 2025 regarding illegal plumbing work, including concerns about the sprinkler/standpipe system. The property has maintained an excellent track record regarding pest control, with no bedbug infestations reported in the past seven years (2019-2025) and consistently achieving passing grades in annual rodent inspections. Historical records show three violations from 2018 regarding inadequate posting of safety information on the first floor, including smoke detector requirements and inspection certificates, though these were certified as corrected in 2019.

More recently, as of September 2024, there is an active violation for failure to file the 2023 external low pressure inspection. The building has undergone several permitted renovation projects in recent years, with multiple permits issued between 2019 and 2020, though these appear to have been supplemented by unpermitted work based on recent violations. The extensive cluster of violations and complaints in late 2024 regarding unpermitted work, particularly concerning electrical systems, gas lines, and plumbing, along with the active complaint about illegal plumbing work in 2025, suggest recent significant construction activity in the building, though the exact nature and scope of this work remains somewhat unclear from the available records. The building's maintenance record shows regular compliance with rodent inspections and demonstrates prompt correction of earlier safety-related violations from 2018.