landlord-effect / steering
If the apartment, when all the inner parts of living in proprietary bent, having a hole in the door. Purchase a dwelling unit with two more doors, partition walls are made of concrete, depending on the degree of freedom of structural change, as well as to remove the wall that separated the dwelling unit is a dwelling unit and common area. Even though both his property, not in the wall construction of pillars and beams, floor plan can be changed quite free. From the wall while you owned the entire apartment, steering can be removed for all partitions, change is part of the structure can not be shared. Proprietary part of the plan may change.