 The garden of Whitley has been immaculately reconstructed, but bears no resemblance to the garden first created there.Whitley is significant as it illustrates the historical development of the Sutton Forest and wider Southern Highlands area as the choice location for wealthy and socially prominent families to build their country retreats in the late 19th and early 20th centuries.As an example of Tudor Revival architecture within an Australian context, it demonstrates the overwhelming influence of British "English Countryside" architecture within Australia especially until the turn of the 20th century.