724 St Nicholas Avenue, Manhattan, NY 10031

The four-story, 1890 building at 724 St Nicholas Avenue in Harlem, currently owned by Mary Lewis, has experienced several significant maintenance and compliance issues over the past three years. Most notably, there are ongoing concerns with pest control, as evidenced by three consecutive annual violations (2022-2024) for failing to file mandatory bedbug reports. The building has also faced multiple environmental control board violations in 2022-2023, including serious safety and maintenance issues such as exposed electrical wires, open splice boxes, and unpermitted structural modifications.

These violations resulted in substantial penalties totaling $56,250. The property is currently facing active DOB violations for failing to file external low-pressure inspections from 2018-2023, and has experienced recurring rodent activity, with the most recent inspections in 2025 showing rat activity. The building's recent history includes various construction-related complaints and violations, with the most concerning being a 2022 incident involving building shaking/vibrating, though no violations were warranted at that time.

The property has undergone significant internal modifications, transitioning from SRO to two-family use, though many of these changes were made without proper permits. A 2022 inspection revealed hazardous conditions including exposed electrical wires and defective facade conditions, which appear to remain unresolved based on subsequent violations. Additionally, issues with facade maintenance continue to be a concern, with multiple violations noting spalling stones and open mortar joints. While the building has passed some inspections, including several for rat activity in 2023-2024, the pattern of violations and the number of active penalties suggest ongoing maintenance and compliance challenges.