420 St Nicholas Avenue, Manhattan, NY 10027

The five-story, 23-unit building at 420 St Nicholas Avenue in Harlem, owned by Ethan Rozenblatt, has experienced several maintenance and pest-related issues in recent years. Most notably, there have been ongoing rodent problems, with the most recent Department of Health inspection in January 2025 identifying rodent signs and confirming violations requiring follow-up inspections.

The building has undergone multiple rodent control measures in 2024, with several bait applications recorded between March and April 2024, and variable inspection results ranging from "Passed" to "Rat Activity." The property has also faced significant safety concerns, particularly in 2021, when multiple violations were recorded relating to smoke detectors and carbon monoxide detectors in Apartment 4C, along with issues with appliances including a refrigerator and electric range. During the same period, there were incidents of sewage problems, though inspections found no violations.

More recent complaints in 2025 involved electrical wiring issues, though inspections did not warrant violations. The building has maintained compliance with bedbug reporting requirements over the past four years, with no reported infestations, and inspections in 2025 have generally resulted in "Passed" statuses, including a successful rodent inspection in May 2025. There are currently two open violations from 2021 related to window guards and peeling paint in Apartment 4D, as well as a 2022 violation concerning a fire escape door lock in Apartment 5D, though inspection results indicate these issues have been addressed.