Post-WWII reconstruction and development in Iran could be characterized as a schizophrenic phenomenon, driven by the ideological division between the West—mostly represented by British and American forces—and the Soviet. Such condition attracted and often combined two radically distinct types of suburbanization; ones that turned the outskirt of large Iranian cities, such as Tehran and Isfahan, to an urban landscape made of minimum dwelling types or single family units accessible by private car. However such distinction, so clear and defined in theories of planning, their embedded ideologies, and urban forms, was often blurred in practice. Nevertheless, application of those ideas not only made the Iranian suburbia a laboratory for urban design and planning, but also turned them into the frontline on Cold War affairs. The chapter focuses on the period between 1948–1969 marked by the inauguration of Truman’s Point IV program in Iran in 1948, the development of Tehran’s master plan by Victor Gruen in 1963–1968, and completion of Arya-Shahr’s master plan in the outskirt of Isfahan by Giprogor Urban Planning Institute in 1969. It revisits the early experimentations in suburban development and housing typologies designed and constructed under both American and Soviet influences: Kuy-e Narmak (1951–1955), Kuy-e Farah (1963–1965), and Kuy-e Kan (1960–1964). The chapter further discusses the large-scale planning apparatuses that were tested by the rival blocs wherein the Iranian suburbia turned to a battleground for ideological and socio-political affairs. It ultimately aims to read the inception of Iranian suburbia not as an outcome of a particular urban development, decentralization, or country planning, rather as a contested territory where the Cold War geopolitical fault lines meet.