He studied architectural engineering at the National Technical University of Athens (1972), he did his postgraduate studies at the
Technical University of Munich (TUM) (German:
Technische Universität München) (1975–77), he earned a doctorate at the
Free University of Berlin (German:
Freie Universität Berlin, often abbreviated as FU Berlin or simply FU) (1991) and of the National Technical University of Athens (1992). He worked as an engineer at the Acropolis Restoration Service (1975, 1977–1979) until he reached the position of the Head of the Department of Restorations at the Directorate for the Restoration of Ancient Monuments (1981). Then he was elected as Head for the "Parthenon" Project of the
General Directorate of Antiquities and Cultural Heritage of the
Ministry of Culture of Greece (1983–1999). He then achieved the position of professor at NTUA (1999–2015). He has taught ancient architecture, historical topography and restoration at the
National and Kapodistrian University of Athens, the
University of Pennsylvania, the
University of California, Berkeley and at universities and uesarch institutions across Europe, the Americas and Asia. In specific he worked in Athens at the restoration of
Erechteum, the temple of Dionysus, the
theatre of Dionysus and mainly in the
Parthenon. He has also worked at the Theatre of
Lindos and at the temple of
Apollo Epikourios in Bassae. He is president of the
Central Archaeological Council of Greece, member of the
German Archaeological Institute (German:
Deutsches Archäologisches Institut,
DAI) and of the . His latest work, filling the archaeological site of Acropolis with cement paths, has been controversial and caused protests and debate. == Personal life ==