Dudai was an architect and planner. He was born in 1911 as Arie (Liola) Dudkin in Ukraine, and immigrated to Palestine with his parents. He graduated high school in Tel-Aviv and then moved to Belgium to study architecture. Belgium, during the two world-wars, attracted many young people from Palestine aspiring to obtain a higher education degree.  In 1930, Dudai lived in the UK and joined the British Air Force as a pilot.  After the Second World War, he returned to Palestine and participated in the 1948 War. In 1949 he became a senior planner at the governmental planning department headed by Arie Sharon and Zion Hashimshoni (under the authority of Prime Minister’s Office together with the Ministry of Interior). Dudai headed the section dedicated to the Tel-Aviv Area and in 1953, when this section moved to Jerusalem, he quit and became the chief planner of the Settlement Department of the Jewish agency.

In 1958 when Arthur Glikson resigned, Dudai became the chief planner of the “Housing Department” (later to become the Ministry of Housing). Before 1965 and the enactment of the planning law, this office was the most important and powerful planning authority. In the early 1960s the Ministry of Foreign Affairs and Ministry of Housing established the IPD – special institute dedicated to planning and development- which was aimed at developing large-scale projects for developing third world countries and their governments or planning authorities. Dudai became the general manager of the IPD. In the early 1960s he became the first chairperson of the Israeli association for regional planning and took part in several master plans in African countries like the Sierra Leone master plan with Arch. Ursula Oelsner.

Dudai left the IPD and joined the UN as an expert and planner and worked on a master plan for Singapore. After two years he came back to Israel and passed away in 1982.