Our past artists knew how to use "what", "how much" and "where", and thus our rich arts and architecture. Contemporary housing is distanced from the traditional housing model, which is in tune with the rich Iranian-Islamic culture. The shape of the house is influenced by several factors, all of which are not of the same significance and impact level. The biological spaces in each region have been influenced by the cultural, environmental, social, historical and political origins of that region. The purpose of this study is first of all to achieve the indicators that affect the desirable spatial deployment and then prioritize these indicators in the spatial structure of Iranian-Islamic housing. For this purpose and using descriptive-analytic research method, firstly with the help of library studies and based on the five principles of Dr. Pirnia, the principles of design for spatial organization in traditional homes are presented, which include background and texture, spatial, confidentiality, Geometry, dynamism and construction. Then do some field research, its representation in the spatial structure of the historical ADAB house of Semnan was studied using the diagrams of the syntax of space and software Depthmap. Finally, according to the analysis and analysis of the information gathered, the arrangement of spaces in the semantic spatial discipline of ADAB house's Semnan by means of the multi-criteria decision making method of Topsis, respectively, is vestibule, entrance, summer and winter, courtyard, guest House, kitchen, toilet and warehouse were prioritized. The results of the research show that the architect based on cultural and religious beliefs, geographic factors and neighborhood of the region and the shape of the land, has organized the traditional home spaces. Therefore, in order to enhance the thinking of the architectural community and achieve a superior architecture, recognizing and exploiting the authentic architecture of the past, it has a significant and significant share.