The evaluation of literature contents books, journals, publications of congresses, dissertations and publications of universities of german speaking countries. The material is divided into 7 parts which depends on their contents. 1. Balance of power in the process of architecture. 2. Sociological research of the use of buildings. 3. Sociological research of the profession of architects. 4. Social aspects of the history of buildings. 5. Socialpsychological aspects of architecture. 6. Social questions of political research in architecture. 7. Investigations about social behaviour in the dwelling places. The theoretical part also contains those 7 parts and discusses the methods and the cognitions of the research.