Building characteristics of dwelling unit in residential building, e.g. story height, floor area and lighting condition, effect on the choice range in designing other building characteristics e.g. ceiling height, room area and water-section positioning. The purpose of this paper is to describe the structure of influence among such building design parameters quantitatively.
Graphical modeling analysis was applied to multivariate data obtained from 158 existing dwelling units. It demonstrated a structure of influence using a “graph” defined in the graph theory. This graph is effective when assessing capacity of base building for interior design variety or for interior changes.