In the early 14th century, contact with the West, the evolution of materials and construction techniques, and the presence of educated Western architects in the construction process transformed the structure of the Iranian house. Simultaneously with the change in the government structure and bureaucratic style, the family lifestyle and the role of individuals, especially women, underwent fundamental changes, and gradually villa houses, devoid of historical roots, replaced traditional Iranian houses. In the 1940s, after the construction boom, due to the sale of oil and the flourishing of the ideas of architects educated at the Faculty of Fine Arts, the identity of the Iranian house was redefined in light of the new lifestyle and the evolution of the role of individuals, and found a new connection with its historical roots. The issue and purpose of this research is to examine how the principles of the identity of the Iranian house were redefined based on the evolution of the family system and the role of women in the works of architects of the second Pahlavi dynasty. Accordingly, the research, using a mixed method, in the first step, qualitatively and with library studies, descriptively-analytically examines the principles that give identity to the Iranian house. In the next step, the extracted components from the first step are examined in a comparative manner in the sample population, which includes a purposeful selection of selected houses of architects who graduated from the Faculty of Fine Arts. The results of the research indicate the consistency of finding the forgotten principles of the Iranian house with regard to the redefinition of the role of women and the family system in the thoughts of architects who graduated from the Faculty of Fine Arts, principles that had been ignored by foreign-educated architects in their dealings with modern global architecture.