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With respect to urban sustainability, of the vital topics in 21st century for urban planning specialists are the type of urban form (centralization or sprawl) and suburbia or neo urbanization. In fact, this is a movement from a mechanical city toward a future city (nodal information of urban transit) and city restoration. Therefore information of spatial form could have main role in successfull urban planning and to help urban environment improvement. The current research aims at identifying the urban model of Urmia City in order to plan to achieve urban optimum pattern. This study is  of applied  type and the method of its investigation is descriptive-analytical. Required data and information  was collected through the results of  General Census of population and housing, urban comprehensive and detailed plans, also through documens, magazines and the books relevant with the subject and different organizations and  the data was analyzed by Mat lab and Excel in models of Holderness, Shannon’s entropy, Moran and Geary’s coefficients. Findings indicate that the model of urban develpment is sprawl and this leads to  un sustained ecological, social and economical and urban form. Regarding the consequences of sprawl growth and moving toward achieving sustainable development and sustainable urban form, it appears that decentralized centralization method (changing one central city into multicentre one based on centralization and multiplication of activities in sub centers) with the emphasis on principles and strategies of urban smart growth is the best model for achieving sustainable form in the future.