This 1920s waterfront villa in Amsterdam was turned into a sustainable family home, in which inside and outside as well as old and new are connected. The spiral staircase provides an attractive break in the horizontal lines within the villa, and the glass extension to the garden connects the interior with the exterior, which is reinforced by allowing the floor to partly run outdoors. The interior has a sober beauty with a global character, created by the use of natural colours and materials such as walnut wood, concrete, marble, steel and clay stucco. The old structure of the house has remained visible and some historical elements have been restored, making for an industrial mix of past and present.