Social hierarchy is the most prominent framework scholars use to examine settlement structure and development in Southeast Asia's pre- and post-state eras. The concept of social heterarchy, an unfixed ranked and diversified form of social structure, is an alternative approach to examining the sociopolitical organization of early settlements in the region. However, applications of heterarchy are limited in archaeological research on the sociopolitical organization and social landscape in Southeast Asian state societies. This paper incorporates space syntax and GIS angular and viewshed analyses to understand how sociopolitical interactions were arranged through the spatial configurations of the historical Buddhist temples in Chiang Saen, Thailand. This paper explores the complex interactions between various historical Chiang Saen social and religious groups through their temple spaces across time. Temple spatial characteristics indicate heterarchical forms of organization—evidenced by the hybrid and nonhierarchical temple spatial patterns characterized by open accessibility and integrated and symmetrical organization of spaces—co-existed with hierarchical relationships from the 13th to 17th century. The approach discussed here provides a better understanding of the multiscale relationships and interactions among sociopolitical groups in the historical communities in Chiang Saen, enabling a broader view that can embrace the co-occurrence of hierarchical and heterarchical forms of governance.