Rereading the spatial structure model of middle class housing by using the paradigm of Complex systems theory (CST)

This research seeks to present a new model of influencing factors on formation spatial structure of middle class housing in Tehran by using the complex systems theory paradigm. Understanding of changes in spatial structure of housing due to transformations of internal and external factors at design time has provided necessary background for this research. The research has been done with a practical-developmental purpose and descriptive-analytical method. Data has been collected in a combined (qualitative and quantitative) manner. In this research, layered models have been presented by review of complex systems paradigm concepts and matching it with housing spatial structure factors. Spatial structure models consist of three main factors: design dimensions, rules and regulations and building elements. The components of rules and regulations have been identified by review of documents content and library studies, components of spatial structure design dimensions have also been expressed accordance with theoretical foundations of sustainable development and design. Importance of design dimensions has been measured by asking experts in field of housing design by using fuzzy hierarchical analysis method. Analysis show that priority and importance each of design dimensions: environmental/ climate, cultural/ social and economic/ technological are variable in each housing spatial structure. The results of research show that change of any spatial structure under influence of internal and external transformations in different locations causes change of all spatial structures. To achieve quality of residential spaces based on transformations, the model provides necessary data for planning and intelligently usage at the time of design.