The entrance point to the three storeys of office space is the single central entrance with a reception area on the 29th floor of the Viennese Twin Towers. The three floors are vertically connected by two newly built internal staircases. The core of the building is covered with dark, rough natural stone as an optical and haptic contrast to the light, smooth and transparent inner façade of the building. Open, transparent, multi-functional office space spans between these two contrasting borders.