 In July 1919, Cantacuzino was admitted to the École des Beaux-Arts, where one of his professors was the Fauvist painter Othon Friesz.The same year, he began restoration work on Mogoșoaia Palace, which belonged to his aunt Marthe Bibesco.In 1923, he and August Schmiedigen, with whom he had founded an architectural office, executed plans for the Chrissoveloni Bank Palace.