David Chipperfield Architectshas just completed a three-building scheme for the larger La Confluence master plan in Lyon, France designed by Herzog & de Meuron.View of the office building from one of the garden courtyards. Image: Simon MengesThe program includes a small office building, housing block, and mixed-use tower. The firm tells us each is "shaped by their structure and defined by their simple rectilinear forms yet react to their specific location in different ways."View of the social housing building from one of the garden courtyards. Image: Simon MengesAll three mirror each other and the other buildings in the plan thanks to the choice of mineral-like materials to cover each of their facades. The three buildings combined offer a gross floor area equal to 30,000 square meters (appx. 323,000 square feet) and were designed especially to enhance their site's riverfront connection.The mixed-use tower building. Image: Simon MengesHousingor at least its possibilityb...