Brunnenplatz Square is situated between the Reichenbach, Rosenstein and Rundegg manors, on a noisy street intersection that was long without an eastern border. Urban planning considerations thus played an important role in the idea of closing the square off again. This was achieved with the early positioning of the main facade, which also had to take the height of the adjacent residences into consideration and was supposed to offer a timely addition. The bank's two-story glass front was thus intended as a stone facade of travertine, with irregular openings, to match the manor walls in a way and, similar to a trompe l’oeil, make it look like a five-story structure. A shed roof marks the main entrance to the bank and to the passageway, with a store, apartments, offices on the upper floors, and a public parking garage.