The Central Office of Delta Sigma Pi, national administrative headquarters, was established in Chicago, Illinois, in 1924. In the fall of 1956, it moved to Oxford, Ohio (near Cincinnati and adjacent to the Miami University campus). In 1970, the original building nearly doubled in size with the addition of wings on either side of the building. Later in 2010 extensive renovations, including a courtyard featuring engraved bricks, were completed to make the building more functional and accessible. The Executive Director is in charge of the Central Office and has a full-time staff.