He graduated with a Bachelor's degree from the Department of Architecture at METU in 1963, and obtained his Master's degree from the same department in 1965. He received a Rural Planning Diploma from the Israeli Ministry of Foreign Affairs and a Regional Planning Diploma from the University of Edinburgh. He worked as a Visiting Faculty Member at Virginia Polytechnic and State University for one year. He served as an Assistant and Teaching Assistant at the Faculty of Architecture at METU. In 1981, he received his PhD from the Faculty of Architecture at Istanbul Technical University (ITU), and in 1989, he was appointed Associate Professor.

While at METU, he held various administrative positions, including Vice Dean of the Faculty of Architecture, Board Member of the Faculty, and Board Member of the METU Continuing Education Center (SEM). He retired in 1999.

EVYAPAN has written several papers, articles, and studies on topics such as rural settlements, technology, design, and the environment. These include: a report on the Israeli rural sector (1966); preparation and inclusion of the "Human and Environment" course in the curriculum (1970); the opening of the course "Typology and Classification of Turkish Cities" (1972); preparation of the report "Architecture Education in Turkey" (1973); inclusion of the CP 101 (Studio 1) course and "Technology and Environment" course in the curriculum (1973); the opening of the course "Analysis and Planning of Man-Environment Systems" (1984); participation as a speaker and/or session chair at a series of "Management of Technology" conferences at the University of Miami (1989), (1991), (1993). The course "Analysis and Planning of Man-Environment Systems" later expanded in scope and transformed into the "Development of Western Thought and Technology" course, which came to be known among students as the "Kosmos Course."