This district encompasses 143 contributing buildings that are located in the central business district and surrounding residential areas of New Kensington. Built roughly between 1891 and 1947, they are a mix of residential, commercial, institutional, and industrial properties that were designed in a variety of popular architectural styles, including Art Deco, Beaux-Arts, and Colonial Revival. Notable buildings include the Mellon Bank Building (1900), the PNC Bank (1914), the Wear Ever Building (1914–1915), the U.S. Post Office (1933), the Ritz Theater (1921–1922), the Datola Theater (1942), the Columbus Theater (1927), and the White Castle Restaurant (c. 1921–1928).[2]