Nate Berkus begins construction at Harpo Studios.

3 of 8
Once the consulting was finished, Oprah was banned from her office for the entire summer! Nate called in the troops including Julie Morgenstern, the queen of organizing, who supervised moving nearly a decade of Oprah's personal mementos and furniture into storage.

Then the fun began! First up: the construction crew gutted the space, knocking down walls and raising the roof. Nate said, "I'm not usually nervous when I begin a project, but this is a huge, huge deal for me...Can you tell why I haven't slept in two weeks?"