Dunning Hall was built in 1960 and is faced with Queenston limestone. It originally housed the departments of Economics, Political Science, Geography, and Sociology, as well as the School of Industrial Relations and the School of Commerce.
As each of these departments expanded and new buildings were erected, most of these departments moved out and the purpose of Dunning Hall became more specialized.
When Mackintosh-Corry Hall was completed in 1973, a walkway was built which connects it with Dunning Hall. Dunning Hall also connects with the Law Building through an underground passageway.