12 West 104th Street, Manhattan, NY 10025

12 West 104th Street is a 5-story, 16-unit Old Law Tenement building constructed in 1920 and currently owned by Yvonne Sun. The building has experienced several recurring maintenance issues in recent years, with the most notable problems being related to heat/hot water systems, as evidenced by multiple complaints in January 2025 and earlier concerns about unsanitary conditions including mold in August 2023.

Recent inspections by the Department of Health and Mental Hygiene in June 2025 found standing water, though no violations were issued in connection with these complaints. The building's ventilation system has also been a documented concern, with complaints filed in July and August 2023, though inspections did not result in any violations. The property has experienced recurring rodent issues, with multiple inspections showing varying results between 2019 and 2025, including instances of rat activity in April and June 2024, though the most recent inspection in June 2025 passed.

Maintenance of building safety features has been highlighted in recent violations, particularly in January 2024, with issues identified regarding self-closing doors and door hardware in multiple locations, including apartments 1W, 2W, and in the stair bulkhead area. The building's staircase and entrance areas have also been the subject of violations for requiring proper signage indicating registration numbers and management contact information. While the building has maintained a clean bedbug record since 2019, with no reported infestations in recent years, the presence of emergency and non-emergency violations suggests ongoing maintenance challenges that require attention.