Extracting the Ideal Floor Plan Proportion from Tadao Ando’s Housing Floor Plans

Tadao Ando's architecture allows users to experience various spaces based on the architectural vocabulary of geometry. However, his architecture is not only composed of geometry but also proportion. This paper aims to determine the theoretical proportions by analyzing Tadao Ando's housing projects. As a methodology, nine housing projects as case studies are selected and analyzed. The proportional value obtained through the floor plan analysis is compared with the proportionate value of the theoretical proportionality. The result showed that mass and room show proportional values close to theoretical proportional weights within an error range of ±0.1. In the case of mass, symmetrical spherical shapes having a similar spherical ratio (40%), an integer ratio (30%), and a root ratio (30%) are shown. A root ratio (48.8%) and an integer ratio (44.0) are shown. The golden ratio (6.0%) and proportional spheres have a similar spherical percentage (1.2%). In general, proportionality can be seen in his elevations. However, it was proven that there is proportionality in the house floor plan of Tadao Ando.