Gutter and vent, north facade; In 1924, having reconstructed four buildings, Rietveld obtained his first comprehensive architectural commission. He designed a house for Mrs Truus (G. A.) Schröder-Schräder (1889-1985) in collaboration with her. Built on the outskirts of Utrecht, the Schröder House realized the architectural ideas of De Stijl for the first time. The exterior is built up of gray and white planar surfaces of varying sizes, which are combined with horizontal and vertical accents in primary colors and black, a technique known as Elementarism, which blurred the divide between external and internal space. In the interior the second floor can be divided from one area into six by the use of concertina (sliding) walls. The foundations...