The newly created Fitnesspark Stadelhofen, is located in the centre of Zurich, not far from the opera and Stadelhofen train station. It extends over three floors of a commercial and office building that was initially built as a car dealership in the late 1940s . In this project, building within the existing fabric was seen as both a challenge and an opportunity. For example, the distinctive mushroom-shaped concrete columns were left visible and placed at the centre of the floor plan studies as an identity-forming element. Ceiling openings between the first floor and the 1st floor allow for a spacious entrance area and facilitate spatial orientation in the studio. Openness, transparency and a variety of visual references are central design ideas of the fitnesspark, in which large spatial volumes alternate with small-scale structures - for example for the checkroom and wellness area. Carefully selected materials perform their intended function and are simultaneously used for a sublimely staged interplay of monochrome and colourfully iridescent surfaces. Visible traces of the existing building refer to what was lived in before and are contrasted with a carefully differentiated extension. Found meets invented - in an interplay for a piece of the future.