As a student of Otto Wagner he started to work in the styles of Art nouveau and Ecclecticism. In the 1920s and 1930s he became interested in steel, concrete and glass and used these materials for constructivist building forms. In addition to many different types of houses, he became known as an architect for department stores. In Czechoslovakia he designed about 30 department stores.
He was very interested in interior design, utilitarian objects and gardening.