The mixed-use commercial building at Theaterstrasse 12 is to be given a new facade and an up-to-date use concept that firmly anchors it as a “house on the square.” The simple and neoclassical architecture of the facade features a configuration accentuated in the vertical by colossal pilasters that correspond to the grid of the existing load-bearing structure. The horizontal articulation is provided by two strong cornices that divide the facade into a two-story base and a three-story central section. Above this, the upper story is set back and topped off with a new cylindrical crown. This primary order, with a classical tripartite division, gives the facade a representational character with an identity of its own that relates to the scale of the public square and accentuates the building’s impact from a distance.

Through the choice of materials and a “performance,” the facade on the square is given a contemporary localization. The pilasters are made of textured cast glass that is back laminated with solar cells. Together with photovoltaic panels on the roof, they supply the building with electricity. The pilasters are topped by a series of cylindrical “roof figures” that serve as upright solar collectors to produce hot water. At nightfall, the glass pilasters can be illuminated from behind, exuding a metropolitan aura. Thus the building also changes its character in twilight and at night. Herein lies the performative character of the new facade.

The ground floor entrances and articulation of a piano nobile open up the building to Theaterstrasse and Sechseläutenplatz. The basement remains reserved for retail, while the ground and second floor can be used to flexibly accommodate various retail establishments and food and beverage outlets. The floors above can be built out for use as office space. A small hotel with bar is proposed for the top floor.