For more than twenty years, he has devoted his time to the study and preservation of the architectural heritage of his country, from traditional housing to historic towns. He has participated in numerous international conferences and contributed articles on sustainable architecture and preservation of cultural heritage. In 2008 he published a book entitled "Addis Ababa the City and its Urban and Architectural Heritage from 1886-1941". His architectural design work in his private consulting firm focuses on regional hotels, public buildings, cultural centers, and private residences, for which he melds use of local material, indigenous knowledge a...