David Chipperfield adds limestone-clad extension to Kunsthaus Zurich Jura limestone wraps around the concrete interiors of David Chipperfield Architects' long-awaited extension for the Kunsthaus Zurich museum in Switzerland. Located in Heimplatz square in the old town of Zurich, the extension provides more gallery space for Kunsthaus Zurich – making it the largest art museum in the country. The Kunsthaus Zurich art museum is wrapped by Jura limestone fins The new building was designed by David Chipperfield Architects' Berlin studio to resemble a freestanding structure, but it is directly connected to the museum's main Moser building via an underground passage. Its monolithic form takes its cues from the city's 19th-century cantonal school at the north of the site and is intended to provide the square with a "clear urban edge".