The annexe to Kunstmuseum Liechtenstein with an underground connection comprises two mixed uses, a museum and a jewellery shop. A clear division is ensured by layering these uses and providing separate access. The Hilti Art Foundation is accessed via the Kunstmuseum’s foyer. A monumental staircase links the exhibition spaces on the 1st and 3rd floors with the basement floor. The similarity of the façades reflects the connection in terms of content, with the black and white colouring creating a sense of autonomy.