In collaboration with Payame Noor University and Iranian Association For Environmental Assessment (IAEA)

Document Type : Science - Research


1 Associate Professor of Geography and Urban Planning, Islamic Azad University, Islamshahr Branch

2 Assistant Professor of Natural Geography-Geomorphology, Department of Geography Imam Ali military University, Tehran, Iran.

3 Assistant Professor of Climatology, Department of Geography, Imam Ali Military University, Tehran, Iran

4 PhD student of Geography and Urban Planning, Islamic Azad University, Islamshahr Branch, Tehran, Iran.


Unofficial housing is an anomaly that is a problem in most major cities and metropolitan areas and has numerous socio-economic and environmental damages. Various factors are involved in the occurrence and spread of this phenomenon. In this research, the role of urban policy-making on informal settlement in district 4 of municipality of Tehran has been investigated. For this purpose, a sample correlational study consisting of 5 policy makers, officials, and relevant experts in the study area was selected as a whole population(including 120 experts) and a researcher-made questionnaire including 26 questions, preparation options and After the validity and reliability were distributed among them. Data were analyzed by SPSS software using Pearson correlation coefficient (r) and multiple regression analysis. The results show that there is a positive and significant relationship between the factors of existing urban land laws, the creation of new settlements and housing policies and urban plans and informal housing in the 5th district of Tehran. In other words, these factors increase the number of informal settlements in this area of Tehran and in total 62% of the variance can be explained by the above three factors.


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