781 St Nicholas Avenue, Manhattan, NY 10031

781 St Nicholas Avenue is a 6-unit, 4-story Old Law Tenement building located in Hamilton Heights, built in 1920 and currently owned by Alethia Brown. The building has experienced recurring heating and hot water issues throughout 2024, with multiple complaints filed between January and November 2024, though most were resolved quickly with systems being restored. The most recent complaint as of May 2025 involves plumbing issues with a toilet, which remains open.

Apartment 3E has numerous open violations dating from 2023, including problems with water leaks, mold, inadequate hot water supply, and multiple repair needs including defective plastered surfaces and missing carbon monoxide and smoke detectors. Building-wide violations include façade concerns, with active ECB violations as of August 2023 indicating problems with the brick façade that require attention. The building's history reveals several significant enforcement actions, including complaints about Certificate of Occupancy issues and illegal conversions in 2022, though most of these investigations were unable to substantiate the claims due to lack of access.

Structural concerns have been persistent, particularly in 2021, when multiple violations were noted regarding building wall maintenance and brick cracks at various exposures. While the building has maintained a zero-bedbug record in recent years, rodent inspections have been mixed, with some showing rat activity in 2022 and 2024, though recent inspections in 2025 have all passed. The property has undergone various maintenance challenges over the years, with multiple open violations as of 2023-2025 suggesting ongoing maintenance needs, particularly concerning the heating system and water supply infrastructure.