Henry van de Velde, one of the founders of the Art Nouveau movement, designed the original Windewaai villa. It was later owned by the Kröller-Müllers, a prominent couple in the Dutch art and business worlds. Some 18 months of intensive renovation, in which many walls dividing small rooms were removed, created a unique and modern interior of generously sized spaces that flow together in a logical, functional and harmonious way. Great care was taken, however, to preserve as many authentic details as possible, including unusual doors, classic window frames and the traditional rafter beams on the upper floors.