It turned out that this system does not reduce the possibilities of planning decisions of apartments. The variety of residential cells in the presented projects was obvious. In some cases, through the appropriate grouping of residential and utility premises in the apartment, the family of the family and the recreation area were allocated in the apartment. There was no zoning in others. Schemes with compact and developed plans were proposed. The location of the kitchen and bathroom in the apartment ranged. Some authors provided the connection of the common room simultaneously with the front (hall) and the sleeping area. The access to the loggia or the balcony in different projects was provided from the premises of different purposes. If you have a house in the city then you need a septic tank unique.