Chipperfield's Extension to Kunsthaus Zürich Completed

The new 23,000-square-meter (250,000-sf) building is located on the northern side of the triangular Heimplatz, opposite the trio of interconnected, existing museum buildings that date back to Karl Moser's original from 1910. David Chipperfield Architects' competition-winning design is linked to the others via a passageway underneath the square. Taking the new building into account, this assemblage on the eastern edge of Zürich's Old Town now comprises the largest art museum in Switzerland.

The new building is faced in local Jurassic limestone that is articulated through vertical fins and horizontal bands expressing the three floors inside. Large windows set behind the projecting stone bring natural light into some of the galleries that are arranged around the central entrance hall; the latter sits behind a tall expanse of glazing facing Heimplatz. As can be seen in the building section below, the entrance hall extends through the whole building, from Heimplatz on the south to the Garden for Art on the north, the latter of which is elevated due to the slope of the site. 

According to the architects, the interior layout was based on the idea of "house of rooms," leading to a "diverse sequence of spaces" according to the size, orientation, materials, and lighting of each room. A cafe, events hall, museum shop, and educational spaces are on the ground floor, while two floors of galleries are upstairs. Galleries on the middle floor receive light through windows, while those on the top floor are given skylights. A "calm materiality," per the architects, permeates these spaces for the display of art.

Although Kunsthaus Zürich's new building won't open until the fall, there are plans to preview the building to the public in the spring, per Swiss-Architects, with performances, guided tours and the installation of the first, non-climate-sensitive works in April and May. After a summer closure, the newly expanded museum will then have its official opening during the weekend of October 9th and 10th.