The two upper floors communicate with the ground floor and the reception area via the central access and the atrium.
The design of the load-bearing structure was accompanied by the planning of the building services; the pipes of the heating-cooling system were integrated into the ceilings and emit heat and cool air directly into the room. Light not only enters through the frameless glazing elements of the exterior facades, in the centre of the building an open atrium with a glass roof generously brings in additional brightness. In combination with the facade, this creates a transparent and light structure that is flooded with light throughout. In the centre, the access is also positioned with the central staircase, including a lift in the concrete core. The prefabricated concrete stair treads are only clamped into the lift shaft, making the staircase appear light and airy and showcasing the possibilities of the material. Rock safety nets made of stainless steel, which are used in geotechnics, are clamped into powder-coated, dark metal frames and serve as railings. The larch wood with which the facade windows in the interior were given a reveal sets homely, warm accents. The two upper floors communicate with the ground floor and the reception area via the central access and the atrium; in addition to the light-flooded office and meeting rooms arranged here, there is also space for a small library with seating on the first floor. The linearity of the long, rectangular luminaires in the rooms is discreetly broken up by the round, disc-shaped lamps in the corridors.