Background and Aim: Rehabilitation of decayed urban fabrics is one of the solutions that have been aimed in order to improve the living conditions, especially the issue of safety, in these textures. Therefore, in this paper, following the investigation of the rehabilitation of the decayed urban fabrics with the approach of increasing the environmental safety of public spaces in Beryanak neighborhood is intended to achieve.
Methods: The method is descriptive and analytical-survey. The statistical population is the residents of Beryanak neighborhood located in region 10 of Tehran. The required data is collected through both library and field methods using books, articles, theses, documents, interviews, questionnaires and GIS. The scope of this research is the region 10 of Tehran, especially Beryanak neighborhood. Cochran's formula was used to determine the sample size which equals384, equivalent questionnaires were filled out among through random sampling approach. The collected data was analyzed using statistical tests in spss software; tests were included coefficients test, regression correlation and one-sample t-test.
Findings and Conclusion: Rehabilitation and renovating the decayed urban fabrics of the neighborhood will be pointed to improve the skeleton of buildings, quality of their construction materials, adjust the floors, which can lead to increasing the durability of buildings and safety especially in term of crisis management. Therefore, rehabilitation and renovating of problematic fabrics of the neighborhoods, especially in the Beryanak neighborhood, which has plenty of decayed area and caused the deterioration of the quality of life for its residents, can provide physical, economic and environmental prosperity in this neighborhood and increase the quality of  life and prosperity to its residents.