Ghiai’s architectural style blended traditional Iranian motifs with modernist principles, evident in iconic projects such as the Senate House of Iran and the Royal Tehran Hilton Hotel. As a professor at the University of Tehran, he had a significant influence on the emerging generations of Iranian architects. He designed the
Senate House, the Royal Tehran Hilton Hotel, several train stations, cinemas, various civic and government buildings and the first series of state of the art hospitals. In France, he designed the Cité Universitaire, also known as the Avicenne Foundation, among others. In 1968, he was nominated architect to the imperial court of Iran and commissioned the vast project of a complex of imperial palaces situated in Farah Abad. As a professor of architecture at the
University of Tehran, he taught several generations of architects. , 1963 ==Death and legacy==