In the present architectural culture of Korea, the expression of Korean values and the contemporary trends of global architectures are not identified and arranged distinctly, so diverse tendencies are applied to the architectures of Korea recklessly. In this situation, minimal architecture is significant, which pursues the essence of architecture through the minimal materials. This thesis analyzes the characteristics of minimal architecture seeking after the essence of architecture by minimalization and examines Seung, Hyosang's architectures showing expressional traits similar to those of minimal architecture in the modem architectures of Korea, so this study can show the expressional characteristics and materials of minimal architecture. Nevertheless, it does not mean that all the Seung, Hyosang's works have the tendency of minimal architecture and that he has to be classified as a minimal architect, but it means only that the values and thoughts like the expressional traits of minimal architecture are seen in his architectural opinions! and works, which will be the subject of this study.