This study is intended to clarify the architect's vocabulary of Facade design in nonresidential works of Kiyosi Seike focusing on the relationship between the expression of beams and columns and "ma". Facades are defined by the composition of sites and buildings, and the representation of beams and columns. The way to express beams and columns on the Facade and the way to compose the arrangement of "ma" is analyzed in relation to the symmetrical property of such elements. As the result of classification, 9 types of compositional schemes of elevation are identified, and moreover by analyzing, these schemes are classified into 4 types of Facade design. Analyzing the relationship between the expression of beams and columns and "ma", it is clarified that Facade design is represented by his sence of symmetry includeding Asymmetry in Symmetry.
