A streamlined shape in anodized aluminum and glass, ING House is constructed like a table on sixteen steel legs. They stand freely on pins in large concrete blocks in the ground, a technique used in bridge building. On top of this table, the floors were built. The belly of the building on the second floor thus rises to the level of the highway. Ground level is below the highway. About half of the total office space (20,000 m2) is reserved for ‘flexible’ work stations. There are fewer work stations than staff members (500). ING House also has a lobby, an auditorium with 250 seats and adjacent foyer, a restaurant, reception areas, a library and several meeting rooms. The six inner gardens in the building are a totally integrated part of the office design. The building is designed to save energy by the double skin and the specially controlled installations.