The migration of Imam Reza (A.S.) to Iran and his enlightening and reformist religious presence led to fundamental transformations in the cultural, social, and political spheres, and particularly in environmental interactions and the emergence of new variables within the geographical fabric of Iran. The introduction of novel knowledge and the expansion of the intellectual milieu, through the implementation of changes in attitudes, perspectives, and conduct, so profoundly disrupted the geographical atmosphere of Iran that the agglomeration of environmental planning underwent a conceptual metamorphosis, resulting in the emergence of a new discourse of environmental planning with a cultural approach. The main research question is: What were the impacts of the presence of Imam Reza (A.S.) in Iran, in terms of environmental planning, on the expansion of the scientific and intellectual sphere of Iranian society? The results and findings indicate that with the presence of Imam Reza (A.S.) in Iran, people were guided towards spirituality, and after his martyrdom, through the promotion of the culture of pilgrimage and the presence of the invited Sayyids, the construction of buildings such as mosques and seminaries, and the strengthening of Shi›a culture-which is directly related to the presence of the Imam and his holy shrine-experienced substantial growth.