The institutions that take the leading role in the evaluation of the real estate should be determined. Real estate valuation takes place in a multi-headed organizational structure and is benefited from institutions in both the public and private sectors. The method of determining the institutions will be examined through the social network analysis methodology of the network of relations between public institutions and the private sector. With the numerical and visual analyzes the following questions will be examined: "Which is the director and responsible institution to undertake the task of collecting the institutional structure under one roof?", Which is the institution that uses the real estate appraisal results most in their works?, Which institution is the most cooperating in acquiring data on real estate appraisal?, Which are the most known institutions that make real estate appraisal?, Which of the institutions that make real estate appraisal are most trusted?". The study will be conducted in order to find answers given to the related questions. As a result, relations between institutions engaged in real estate appraisal business are assessed by social network analysis and interoperability issuing "awareness network" will be put forward.