City and the Problem of Informal Settlements: with Emphasis on Empowerment and Rehabilitation of Informal Settlements (Case Study: Sari City)

Informal settlements or self-building cores and non-authorized settlements are part of living in megalopolis of Iran.In Iran,housing,specially,urban housing have faced with several difficulties and challenges.Informal settlements are part of these challenges in cities of Iran.Informal, marginality and slum neighborhoods informal living spaces and urban abnormal spaces and all of them are reflect of pathologic economy and spatial planning weakness management and also are reflect of social-economic injustice in local,regional and national levels.Informal settlements as urban harms have specific significance and position in urban and social studies.Research method is survey.Research results shows intensity of  economic problems,social insatisfaction,housing problem and intensity  of health and environmental problems.Main emphasis of paper is the implementation of two models rehabilitation and empowerment in informal settlement neighborhoods of Sari.