The lower part of buildings by the roadsides which forms the streetscape as one of the elements is important as the element of streetscape uniformity, prosperity, and street's personality and must be discussed prudently. This study is to analyze the relation between components in lower part and streetscape impression evaluation and clarify characteristics of streetscape formed by impression evaluation of lower part. Streetscape impression evaluation was defined by four factors, making use of the factor analysis. And it indicated that the relation between components in lower part and streetscape impression evaluation has a definite tendency by the cluster analysis and the quantification theory type-I. In addition, in section of subject in Midosuji, It comprehended four patterns of streetscape and clarified its distribution and components of lower part supposed to have high contribution ratio to four patterns of streetscape.
