This is a single floor accommodation building built of prefab container houses. The containers are combined on the long side. The aisle is separated out on the center line of long side. And then the rest space is separated into single rooms. Two short sides` long. The single room can hold one single bed, one unit of office desk and a pair of wardrobes. And absorb enough sunlight through two wide windows. In the end of the single room is a separated washroom with a toilet, one basin and a shower cube.