The present research aims to determine the factors influencing the place attachment users of social housing complexes from the residents' perspective using the content analysis research method. From the research methodology perspective, this research is qualitative research conducted with the help of library and field studies by studying documents related to the topic, taking photographs, and semi-structured interviews with 387 residents of social housing complexes in Shiraz who were selected by random probability method. The interviews, which were in the form of audio and video files, were converted into text and entered into the ATLAS-TI 9 software. After coding and determining the validity of the subcategories, concepts, and codes by ten experts in the design of residential complexes, they were extracted in the form of diagrams. The data coding by subcategories and concepts is also compared with the effective components of designing social housing complexes. It is worth mentioning that the selection of social housing complexes in Shiraz was done by the AHP method with the help of Expert Choice 11 software. The findings revealed that the components related to the place attachment of the residents's social housing complexes based on interviews with their users include social connections, emotional connection with the place, the meanings of the place, and the dark side of the attachment to the place. Manuscript profile

Different components and sub-components are important in the design of residential spaces. Social housing is important in terms of creating living spaces with collective uses for certain groups, which the government plays an important role in creating. Considering the proven role of environmental psychology in space design, the upcoming research has been carried out with the aim of identifying the most influential physical-environmental sub-components on the place attachment of their users as one of the important issues related to environmental psychology. The research method used in the current study was descriptive-analytical with the method of collecting information in the form of library and survey studies with the help of relevant scientific texts and also a researcher-made questionnaire. After collecting related materials and categorizing the components related to the subject, a researcher-made questionnaire was developed and its validity was determined by Delphi method by experts and its reliability was determined by Cronbach's alpha. According to Cochran's formula, it has been randomly distributed among 387 users of social housing complexes in Shiraz, who were identified with the help of Expert Choice 11 software based on the AHP model. The data from the questionnaires were analyzed by Excel and SPSS software with the help of ANOVA, Pearson correlation coefficient test and multiple regression tests. The findings have determined that the most influential physical-environmental sub-components include: 1- "Hierarchy"; 2- "feeling of comfort"; 3- "dimensions and size" and "view and landscape" (on the same level); 4- "personalization" and 5- "material type". Manuscript profile