New York State Route 403 is a short state highway located in Westchester County, New York. It runs approximately 1.5 miles, connecting U.S. Route 9 in Peekskill to New York State Route 9A. The route primarily serves local traffic and provides access to nearby residential areas. The highway is known for its scenic views along the Hudson River. It features a mix of urban and suburban landscapes, making it an important connector for residents and visitors. New York State Route 403 is maintained by the New York State Department of Transportation.