In 1951, Belluschi became Dean of the architecture and planning school at the Massachusetts Institute of Technology, a position he held until 1965. When he accepted the position of dean and moved to Massachusetts, he transferred his office in Portland to the architecture firm Skidmore, Owings and Merrill. The move reduced his annual income from $150,000 to a salary of $15,000, but was prompted by health concerns attributable to the long hours of managing his office while still designing buildings.