This paper's aim is to clarify the characteristics of integrational form in spatial composition by analyzing typologically Japanese contemporary complex buildings as groups of volumes with arrangement. Initially, the groups of volumes are defined by combination of the direction of arrangement and the element representing the bodies, and also several hierarchy-patterns are defined by the exerted ranges of those arrangements. Secondly, typological compositions are found by analyzing contents of the arrangements in the hierarchy-patterns. Finally, through comparing those compositions, the integrational form is structured with the functions of arrangement that generate the relationships among volumes such as "master-servant".
