The green sedum strips on the large roof surfaces follow the curved shape of the building. From the workrooms in the high office towers, an interesting green pattern can be seen on the lower roof surfaces in the depth. The curved shapes are repeated at ground level in the pattern of hedges and reed collars.

A spacious roof garden borders the staff restaurant and is therefore designed as a terrace. The pattern of wooden decking in gravel also follows the curved facade here. The terrace is decorated with seating elements and large containers with currants and ornamental grasses.