The condition of the structure and technology of the existing building, as well as the introduction of the Eurofighter by the Austrian defence forces, necessitated the construction of a new air traffic control tower and a service building for fire brigade, winter service and rescue. The decision to combine the tower and sheds led to the creation of a ‘standing’ part and ‘reclining’ part of the building. The two elements enter into a dialogue with each other, the ‘foot’, consisting of fire brigade area and base, confronts the 45m tower. The epitrochoid ground plan is a result of the main lines of sight to the runway. The tower is not the classic form, consisting of shaft topped by a control room, but instead takes the shape of a multi-story building, where the separation into different floors is subverted by the irregular placement of slit-like windows – a high tech camouflage. In contrast to the shiny silver tower, the base structures seem to be anthracite grey boxes, sitting consciously heavily on the ground.