The Winsor Building is located at 400–420 Main Street in the city Asbury Park in Monmouth County, New Jersey, United States.

Built in 1904, it was added to the National Register of Historic Places on September 13, 1979, for its significance in architecture, community planning and development.

An additional 66' of similar store fronts and apartments were added some time after 1911, making the total length of the building along Main Street 133 feet.

Hardware items such as hinges, mail slots, door bells, speaking tubes and awning brackets are present.

The Winsor Building, because of its location and design qualities; continues to exert a positive influence on the downtown Asbury Park business district.

The building commands an important corner in Asbury Park across from the 1912 white marble Italian Renaissance U.S. Post Office and the former railroad station area.