Located in the Chêne-Bourg municipality in the canton of Geneva, Switzerland, this mixed-use building houses 101 residences, 250 offices and ground-floor commercial space. The building gives its occupants direct connection to the city and its offerings, which is further enhanced by the nearby, new underground Chêne-Bourg CEVA train station. Signature to their residential work, each unit features a flexible winter garden or balcony extension, with floor-to-ceiling exposures and lined energy-efficient thermal curtains, resulting in maximum space, light and warmth. The professional spaces also allow for flexibility, through their modular offices and adaptable configurations. Furthermore, five floors operate as flexible levels that may be converted into housing or tertiary spaces.