Vernacular architecture in Iran reflects a wise and harmonious coexistence between humans and nature, shaped by centuries of adaptation to the country’s diverse and often harsh climates. Among its most remarkable achievements are the Asbads (windmills) of Nashtifan in southern Khorasan, which stand as rare examples of wind energy utilization that significantly contributed to the livelihood of local communities over the centuries. This study, through an experiential approach and qualitative data analysis, aims to thoroughly examine these structures and propose strategies for their reinterpretation and contemporary application. The goal is to align with principles of sustainability, respond to current climatic challenges, and at the same time, preserve the authenticity and identity of Iranian architecture. A review of existing literature reveals that while the structural and functional aspects of Asbads have been explored, their potential for modern use—especially in the context of current environmental crises—has received limited attention. Focusing on the climatic potential of the region, particularly the well-known 120-day winds of Sistan, this research seeks to present a bioclimatic design model rooted in traditional knowledge that paves the way toward a sustainable architectural future.