Presence in urban spaces that remind people of their memories, history, and identity is essential for the mental and social health of citizens living in large cities. Urban regeneration, as a basic and effective approach, plays a fundamental role in preserving the identity and authenticity of urban areas and improving the quality of life of city residents. One of the strategies for accessing this category is to pay attention to the role of regeneration components in restoring the history of places and structures and preserving the authenticity and historical identity of urban spaces. The present study analyzed the role of regeneration components in improving the quality of historical spaces in Karaj. The aim of this study is to identify the effect of regeneration components in optimizing the urban texture and historical spaces. The type of research is applied and its method is descriptive-analytical. The statistical population of citizens of Karaj Region 2 with a sample size of 375 people was approved and considered using the Cochran formula. The results of the study showed that the development of regeneration components had the greatest impact on physical and economic indicators. The results of SOAR also indicate that the most important role of regeneration components in urban development is to develop the social and participatory dimension of citizens and create more job opportunities for residents.