 Beginning already in the late 1920s, tens of foreign architects were enticed to seek work in the office of Alvar Aalto, albeit for short durations, most notably the Danish architect Jørn Utzon, British architect Patrick Hodgkinson and Swiss architect Bruno Erat.Erat in particular settled in Finland and became renowned as a pioneer of ecological houses.With foreign architects being allowed to enter Finnish architecture competitions, a significant number have been won by architects from different countries.