The original building, which can be identified by its tower, was started in 1875 and completed in 1882. An addition which doubled the amount of office space was attached to the back of the original building between 1903 and 1905. Construction on the East and West wings began in 1916 and was completed in 1918. During this era, “custom house” was an umbrella term used for the multi-use buildings being constructed under the sponsorship of the Department of the Treasury. Also called the Federal Building or the Federal Office Building, it is three stories tall and boasts a clock tower of 190 feet. The architecture type is Gothic. The architect was William A. Potter, who was especially known for favoring the Gothic style. Construction materials included stone and iron.
