The Charles R. Jonas Federal Building is a two-story Neo-classical limestone building constructed in 1915 and substantially expanded in 1934. The main elevation (northeast) faces West Trade Street. It features a full-length colonnade, with a projecting central temple front pavilion. On either side of the central pavilion are colonnades divided into eight bays. Massive, monolithic Corinthian columns support an entablature with denticulated cornice. Each of the three entry doors has an elaborate limestone surround featuring fluted engaged pilasters which support a decorative cornice. There are two secondary entrances with decorative limestone surrounds set within the flanking colonnades.
The southeast elevation is the main elevation of the original 1915 building and features two entries, one at either end. The entry doors are set within projecting corner pavilions. The decorative door surrounds feature fluted engaged pilasters which support a classical cornice. Flanking each entry door are original bronze wall-mounted lanterns. The central pavilion of the elevation is expressed as nine bays delineated by engaged Corinthian pilasters. The denticulated cornice and unembellished frieze are present on the southeast, northwest, and northeast.
The northwest elevation reflects the design of the southeast elevation though there are no main entry doors here. The central portion of the facade is divided into nine bays delineated by engaged pilasters. Due to the slope of the site, basement windows are above grade on this elevation. The southwest elevation features a distinctive original copper-clad loading dock.
Significant interior spaces include the main lobby and the ceremonial courtroom on the second floor. The L-shaped lobby, once a Post Office sales area, retains its original marble floors, wainscot, pilasters, light fixtures and ornamental plaster ceiling. The 1930's courtroom features wood panelling and carved door surround. An effort has been made to retain original woodwork in the second floor office spaces.
Transferred to City for land - Fall 2005