In 1970, the Postal Reorganization Act changed the Post Office Department to the United States Postal Service, and also removed the position of Postmaster General from the Presidential Cabinet
Smith designed the Queen Anne Post Office and Regional Headquarters in the New Formalism Style, which emerged during 1960s as a rejection of the rigid forms common in Modernism that was in full-force at the time. In essence, New Formalism attempted to draw upon building forms of the past with needs created by modern society. New Formalist embraced Classical styles such as building proportion and scale, large columnns, stylish entablatures, and colonnades, as well as modern touches comprised of concrete used to create forms such as umbrella shells, waffle, folded plates and precast structural members.
At a time when stores still sent catalogues, people wrote letters and sent cards, and almost all forms of bill-paying communication was done through the mail, the Queen Anne arose to meet those needs. The building demonstrates a time when society started to adapt technology as part of efficiency, but still believed in centralizing its business headquarters in large buildings located in downtown regions.