Lifting the Four Corners of the Rooftop. Imagine a two-story house, with its four rooftop corners lifted up. More light is let in; the height of interior space becomes indefinite – some rooms are two stories high, some one and a half, and some close to the top ceiling are only half story high, and these spaces naturally transform into a living room, an art studio, a loggia, or an attic… The roof, defined by four curves, transforms into a patio featuring a double-curved structure, just like a courtyard opening up towards the sky. People can get together here on a clear summer night to enjoy the bright moon and the cool; on a wet day, this is also where rain gathers and gets drained out of the house from four waterspouts.