Architecture, Building and Structure Design M4-house [ House of Overlap ] House by Masahiko Sato M4-house [overlapping house] was built in peaceful countryside of Higashisonogi area in Nagazaki .Appearance has four differences in level that creates a sense of rhythm by pasting red cedar material to black siding frames. It makes people feel warm and friendly by harmonizing architecture and surrounding environment. Colonnades of red cedar give a sense of rhythm to living & dining room. In day time, the sunlight going through leaves from atrium makes living & dining room very friendly and harmony. When night falls, indirect light in handrail of stairs make the space beautiful and gentle.