House With One Wall by Christian Kerez
A two-family house is a building with a wall that divides it into two halves. The dividing wall is the only wall in the entire house. It cannot be crossed anywhere. It has to fulfil functions conventionally assigned to several architectural elements. It is the loadbearing structure and the installation core, its folds define all of the rooms and it determines how the view from the entirely glazed building is divided between the two living units.