Pärt was born in Paide, Järva County, Estonia. A prolonged struggle with Soviet officials led him to emigrate with his wife and their two sons in 1980. He lived first in Vienna, where he took Austrian citizenship, and then re-located to Berlin, Germany in 1981. He returned to Estonia around the turn of the 21st century and now lives alternately in Berlin and in Tallinn. He speaks fluent German and has German citizenship as a result of living in Germany since 1981.