In the 1990s the Mount Vernon Ladies' Association began a phased construction plan to upgrade visitor experience and build a much-needed storage space on the estate. The first phase, completed in 1998, resulted in Conservation Complex and Volunteer Center with additional staff parking and expanded lower gate. Phase Two included the expansion of food service and retail, adding a food court style pavilion and doubling the size of the gift shop space. The final phase led to the erection of the Orientation Center, Education Center, and Museum. This collection focuses on Phase Two and the plan for more dining and shopping options at Mount Vernon.