Abstract
In modern architecture, the concept is the central axis of the design process, but it is not yet a building. The concept is modified in the process of realization because it captures only a part of reality. However, in the works of some Japanese architects, the concept seems to have become almost a building. In this study, I tried to find the cause of such a contradictory situation centering on House N of Fujimoto Sou, which is a representative architect of such tendency. Specifically, I analyzed the concept of House N by dividing it into aspects of function and representation. The reason for this was to see if the functional aspects of the concept were not modified in the first place, or if the representational aspects of the concept covered the functional aspects. For this purpose, I used WLVAE, which is a visual analysis tool, to analyze the functions of design concepts, along with the analysis of photographs, drawings, and diagrams. As a result of the analysis, House N was also modified to conditions of reality in the process of building, but the initial purity was emphasized in the representation of the concept, so that the building seemed to be very conceptual. This fact suggests that the architect has divided the functional and representational aspects of the concept and has focused on the latter. In conclusion this can be seen as an expression of the architect's interpretation of the relationship between the house and the city through the building.