sash is thought to be a common part. Because both pipe space is a joint ownership space only for the drainpipe, it is not possible to move. Two kinds for water supply and quiet enjoyment wiring. Part where each unit can be used for exclusive use though veranda is common part. Because the floor is a common part, gardening is permitted within the range that can be used as a passage for shelter. The below the floor level storage cannot be made by puncturing a gas pipe and a concrete part. Therefore, it is not possible to change without permission. When