The two existing houses built in 2013 are situated in a villa garden on the southern slope of Hofstetten. The two-story buildings stand perpendicular to the slope and are terraced to follow its contours. The roof, with its curved form, creates its own topography, connecting the two floors and making the hillside location a central design element. The exterior materials reinforce this volumetric concept. Between the curved, solid concrete ceiling edges, floor-to-ceiling windows and a suspended facade of translucent polycarbonate panels create a light and airy effect.
The extension connects to one of the existing buildings on the east side and, through its independent form, creates a new whole consisting of three distinct structures. It adopts the existing building's height, construction, and appearance, but not its orientation. It faces the forest, a fact emphasized by the floor-to-ceiling window that dominates the space. At the junction between the extension and the house, a staircase leads directly into the garden, which is enhanced with a seating area and new landscaping. Its natural character and organic forms create a deliberate contrast to the clean geometry of the terrace.
The extension houses the new, spacious kitchen on the upper floor and the wine cellar below. Access to the upper floor is through an existing window opening, while a new opening has been created on the lower floor. The space formerly occupied by the kitchen has been transformed into a generous entrance area with a wardrobe and a seating alcove.