The living area can be increased without increasing the total area of development, having adapted the existing attic for housing. The ability to do this can only be done that the width of the house is the smallest 5 meters and the height of the attic room at least 2 meters, and in the zone of this height the width should be at least 0.5 meters. The ceilings will be mowed into the room, its walls, which will become an additional roof support, should be at least 1.5 meters high.