The parking deck is accessible by a corkscrew-shaped driveway. The load-bearing structure of this driveway consists solely of prefab concrete, and because of this innovative sollution was awarded the 'Betonprijs' in 1997.
In front of the building a free standing distinctive advertising display with a height of 12 metres and a length of 280 metres has been placed.The megastores can place their neon advertising signs here. Thousands of LEDs are placed in the square cells of the floor diffusers, to form a large ticker.The requirement for a transparent appearence of the screen, lead to the diffusers being supported by stay cables (steel cables with stay anchoring, which are also used for sailing ships.) These stays have been tested in advance in order to test their deformation behaviour under constant tension (relaxation) and under changing tensions. The design calculations have subsequently been based on these results.
The building was built around the already existing 'Polderhuis' (polder house) which was the former building of the polder administration board. This building is located behind the window.
