Improvements to the exterior façades included repair and/or restoration of deteriorated limestone, granite and ornamental metals. Interior restoration work included all finishes in the U. S. Post Office at street level, and the main courtrooms, corridors, common areas and judges’ chambers on the upper floors. The Robert N. C. Nix, Sr. Federal Building was built in 1937-1940 Art Deco style to serve as a Federal Courthouse and Post Office.