To ensure smooth communicating properties between rooms by forming a stepped section to the wall surface of a building facing south and securing a wide daylighting surface while arranging an inclined wall at a stepped section in the building.

In the residence, double-face parallel wall surfaces 17, 18, 19 are formed to a building by adjacently disposing rooms in a double face manner. The entrances 22 of at least two rooms arranged in the double face manner are connected mutually and the rooms are continued mutually in the oblique direction, and the inclined wall 23 guiding the mutual rooms in the oblique direction is disposed into the entrances 22 of the rooms continued in the oblique direction at that time.