Uncontrolled and unplanned spatial expansion of cities large and medium in the past decades, causing the formation of new tissues in the vicinity of urban areas And the displacement of residents and urban areas are new. Therefore, replacement of old tissue gradually working and social life of cities - have lost their economic And the texture of urban life with the loss of their tendency towards stagnation and burnout have found. Karaj old texture of this study was selected as the study area, the main purpose of this study, social and economic characteristics of residents aged textured (Karaj) and understanding the physical condition of tissue. The research method according to research objectives and hypotheses is bibliographical – field method (observation, interview and questionnaire). In this study the sample size has been estimated with the use of Cochran’s formula which is equal to 320 people and the sample has been selected with the use of random sampling method. Information and data have been analyzed with the used of Excel and SPSS with the use of variance analysis and Pearson’s correlation coefficient statistical tests. According to data analysis, the results indicate that Limitations, the indigenous inhabitants of urban services and infrastructure migration from other parts of town Tissue and cause negative population growth over recent years has been On the other hand, because of socio_economic status of residents, texture, Has led to the improvement and modernization within the tissue, which causes wear to these factors and more tissue destruction is.