336 East 73rd Street, Manhattan, NY 10021

336 East 73rd Street is a 5-story, 39-unit residential building located in Manhattan's Upper East Side neighborhood. The building, owned by Elysa Halpern and constructed in 1910, has experienced persistent maintenance issues in recent years, particularly concerning water-related problems. Most notably, there have been two documented instances of mold (February 2025 and March 2024) and one instance of heavy water flow (March 2024) that were classified as emergencies.

The building underwent several inspections in 2024 that revealed various violations, including issues with paint conditions, fire safety materials, and the need for repairs to address water leaks in public areas. A significant safety concern emerged in 2024 regarding the vestibule door security, where violations were issued for an illegal electromagnetic locking device and the need for proper mechanical locks during power outages, though these violations remain open as of the most recent inspection. The property has a history of various infrastructure and maintenance challenges, including multiple reports of unsanitary conditions related to pests (2020), a power outage (2020), and issues related to cooking gas (2019).

However, there have been no reported bedbug infestations in the building since at least 2019, and multiple rodent inspections between 2010 and 2019 consistently showed passing results, indicating generally effective pest management procedures. The building's maintenance history shows a pattern of repeated issues with water-related problems and interior conditions, particularly affecting Unit 4G, as evidenced by recent violations involving kitchen and bathroom maintenance requirements. While the building's management has generally responded to complaints and achieved closure of many service requests, the persistence of certain issues and the presence of open violations as of 2024 indicates ongoing maintenance challenges in this historic structure.