The building's base is differentiated from the rest of the tower by a facade of polished granite and large windows. The base is wider than most of the tower above and is curved at the corner facing the Market Street and 12th Street intersection. The base housed the original banking hall and former retail space. Two-story-tall windows set in flat aluminum frames open into the banking hall area, curving with the rest of the base. Stainless steel rods make up the window mullions.