PERSPECTIVE VIEW OF A FRAME HOUSE (Source: Carson, C, N. F. Barka, W. M. Kelso, G. Wheeler Stone, and D. Upton, Impermanent Architecture in the Southern American Colonies, 1981:145) Port Royal's Building 3 differs from this house in the following ways: its wall sills are placed on an elevated plaster foundation it did not have a wooden floor; a plaster floor was placed directly on the ground its piers were placed on wooden blocks rather than set in holes