After the war, he studied architecture at the Brno Technical University, and as a postgraduate student, in the Academy of Fine Arts in Vienna.
He then worked in various architectural firms in Brno, Czechoslovakia, as a draftsman and an architect till he had established his own practice.
During this time he produced a series of graphic drawings, showing the horrible conditions of the Jews in the camp, to be smuggled to the outside world.
Simultaneously, he had developed and implemented planning and construction design standards for the Jewish Community Centers’ buildings.
In 1958 he opened his own practice, and was involved in the design of residential houses, interiors of offices, showrooms, retail shops and restaurants in New York City and the metropolitan area.
Many times during his life, Norbert Troller successfully participated in architectural competitions: in Brno, where he held two personal exhibitions in the Art Center, and in America, where he won the First prize and four Third prizes in the Chicago Herald Tribune Better Rooms Competitions, 1949 [4]–1950.