The first-because without the demolition of walls, as a rule, it will not work out. Secondly-because all the plates, ducked rooms, plumbing are recorded in the scheme of the apartment. Based on such data, a technical housing passport is formed, and it is impossible to change it without coordination: the legislation imposes a variety of sanctions on such an account. Because making changes to a whole, pre -created system can violate its functioning.
