This paper deals with villa Strasser which is one of Adolf Loos's house-alterations in Vienna. This work has been positioned in a germinal stage of Raumplan. The purpose of this paper is to critically study and revaluate the Raumplan-concept on the basis of analyzing this work. Therefore this paper makes clear Raumplan's structure in a process of forming the Raumplan-concept, pointing out the characteristics which are caused by the fragmentization in this work. In a word, the fragmentization in various levels, conflicts between fragmentary parts and the whole and self-negation are indicated as Raumplan's structure.