On his own, Györgyi designed the Hangya Associated Office building (1920) and many other schools and public buildings in regional cities, for example the Copf-style Deri Museum in Debrecen. He also designed numerous pavilions for world fairs: the 1929 Barcelona International Exposition, the Brussels International Exposition (1935), and the Paris "Exposition Internationale des Arts et Techniques dans la Vie Moderne" (1937). He designed the Electricity Works at Budapest's Székesfőváros (1926–1938), which incorporated art deco and modernist elements.