This paper is aimed to clarify the from of buildings arrangement in contemporary Japanese city. At first, we analyzed buildings composition in blocks and street patterns in several representative towns in Tokyo. From the analysis, we obtained two typological characters of town space. 0ne is homogeneous blocks group with open spaces face to streets and non-hierarchical street width system. Another is heterogeneous blocks group with hierarchical street width system. These typologies of town space suggest that grade of homogeneity on arrangement and shape of buildings show the order of contemporary urban space.
