This paper looks at examples of successful transdisciplinary design projects that oblige a departure from the typical assertion of sub-discipline distinctions. In doing so a case is made for a new convergence between architectural design education, research and practice. A case for post digital design will also be made, defined here as the comprehensive assimilation of the computer within traditional modes of design practice, offering a more natural and productive state of affairs than the exclusively digital office promulgated especially during the previous decade. The paper concludes with a demonstration of transdisciplinary design teaching and practice, offering a post digital design framework that require radical new approaches to education and practice. It is contended here that only when CAAD research is undertaken conjointly within teaching and practice can the links be properly formed between the two.