The Portico: The house is Greek Revival in style, an architectural form so popular during the time of its construction in the 1840s that it became known as the "Nationalist Style." Common elements of the form in the region were a square or rectangular box with a relatively small four-columned porch on one or more sides, usually with a balcony over the front porch. Design for the house is attributed to "architect" William Turner, though more likely he was simply a skilled carpenter-craftsman and may have formed the plans for the house based on designs published in a number of commonly available sources in his day. A number of houses in Oxford and throughout Lafayette County closely resemble the design of Rowan Oak.