Architecture, Building and Structure Design Flexihouse residential complex by Seyed Roozbeh Ghaemmaghami House as a place of living is the first place that each person becomes familiar with it and has a sense of unity. It has also the feeling of ownership towards it and the first perception of the space. In order to solve the problem of housing requirements for middle class, flexibility is suggested. Flexibility is one of the options that can deal with multidimensional minimum spaces in order to make maximum efficiency and bring them closer optimal spaces. Use of movable walls and furniture have been proposed and it can reduce the amount of occupied space and prepare the space for optimal use.