صابر محمدپور - Assistant Professor, Department of Urban Planning, University of Gilan, Gilan, Iran
رضا طالبی - MSc, Department of Geography and Rural Planning, University Of Mohaghegh Ardabili, Ardabil, Iran.

Informal settlement is the prominently dominating factor which contributes urbanization and provides the city's poor people with housing. In fact, these settlements are unreasonable and disorganized agglomeration places for low income people who live in deprived areas of the cities. Given the importance of housing, especially in informal settlements, the current research intends to outline the changes in housing indicators from margin to context and vice versa, especially in informal settlements of Tabriz metropolis. A descriptive-evaluative methodology was used together with a field- documentary method applied for data collection. Here, in order to analyze the data and weighting of housing indicators (data layers), ANP model was used with Super Decision software.Also, GIS software was applied for generating maps. Additionally, the statistical community of the research included informal settlements of Tabriz metropolis. The findings together with consideration of changes in housing conditions for the statistical blocks of the informal settlements indicated that , of ۱۳۱۸ blocks, ۴۳/۱۷% didn't change, ۱۴/۱۹% changed from deprived category to wealthy, ۷/۳۶% changed from medium to wealthy level, ۱۵/۸۵% changed from deprived to medium level, ۵/۱۶% changed from wealthy to medium level, ۷/۲۱% changed from medium to deprived level,and ۷/۰۶% changed from wealthy to deprived category.

"Informal settlement", " Housing", " Urban poverty", "Tabriz Metropolis"