The site is located in the east of Hokkaido, the old city area of Saroma-cho and there is a road in the north side. The warehouses of the farm co-op stand along this street, and there is much traffic density. There is the office of the farm co-op in the East, and a warehouse is adjacent in the west. In the south, there is a small garden, and the house of parents of client is built. By the way, my parents built it. I will design the space for family(four persons) in this place. Space with the directionality to the south side was thought at first by the situation of the site outskirts and this place. I did it with an opportunity to solve space by a connection with the outside by the buffering space that I tried at the same time in "Rectangle of Light" and "House of Trough" and environment such as light (airlight) / heat.In any kind of constitution, I think that the design of architecture is an act to make a certain closed-door room on the earth. We can have a sense called the ease in my hand by "not seen in a person" or "the sense of distance of persons or the town." "House of Trough" and " Rectangle of Light" are the space with high closed-door room nature. In even "Layered House", I thought about the buffering space by relations with the environment aimed at the subject of space and the creation of a new place and approached the closed-door room.The existence of "the light" becomes big when I raise this closed-door room feeling. Common light of three space is airlight. The room is full of the state called the airlight unlike a direct light. Light and a shadow are in condition to be able to live together. A state of the light and the closed-door room nature lead to a sense called the ease. These are the stories about states.The function of each many rooms is gathered beside the gate type at "Layered House". This is "places to stay". That is like to hide in the stage hem. Their spaces and the living dining construct of one space. A sense to hide while being connected produces a moderate sense of distance between places to stay. By semitransparent curtains, light and the sense of distance between places to stay change.