Architectural space is formed by the interrelationship with two parts, substantial parts which constitute building components which form the building and empty parts like depth, expanse of space which is formed by substantial parts. On this research, we pay attention to the relationship between wall and room which lie at the base of two parts, define two kinds of factor, room floor area which means variation of rooms ' scale like concatenation and wall length which means variation of room layout like axis. Furthermore, we analyze floor plan characteristic in modern houses from both points of view, consider architecture planning of modern architects.
