Global economies and global conflicts have led to unprecedented migration in the twenty-first century. This research argues for successful multicultural environments and the creation of a design approach that facilitates cultural hybridization. It examines traditional design systems — deeply rooted in cultures, values, and religions — that continue to be expressed in building construction. It identifies the fundamental ideologies and principles of the design systems of Western civilization (Classical principles of design), India (Vaastu Shastra), and China, Japan, and Far East (Feng Shui) and the shared principles that allow the design systems to be integrated. It draws on literary and archival sources to understand defining principles and on case studies of historic and contemporary design integration, to show how and why traditional design systems have been successfully integrated. Findings are visually applied in two-dimensional prototypical plans and three-dimensional renderings.