Costas Kondylis was born in the Belgian Congo, where his father was an exceptionally successful merchant. He finished junior high school at the Classical Lyceum Anavryton in Maroussi. He did postgraduate studies in Geneva and New York, where he has lived and worked for the last 35 years. He has been honored for his work by the New York Society of Architects and has been granted an honorary doctorate by Ioannina University. Kondylis is responsible for the construction of more than 60 skyscrapers in Manhattan, including the tallest residential building in the world, the World Trump Tower. He recently joined forces with his daughter Alexia (now in charge of the subsidiary company Costas Kondylis & Partners LLP, Kondylis Design) to renovate New York’s landmark hotel, the Plaza. He has another daughter, Katerina, and a granddaughter, Stella.