 The 22-room mansion has undergone historic restoration and is currently interpreted to reflect the 1930s era when the Lilly family occupied the residence.In addition to the home's significance as a representation of the American country house movement, Oldfields' gardens and grounds are a rare example of a preserved estate landscape designed by Percival Gallagher of the Olmsted Brothers firm.The outdoor areas east of the Indiana Central Canal are collectively known as "The Gardens at Newfields".