he published his "The Plans and Elevations of the late Earl of Leicester's House at Holkham", he immodestly described himself as sole architect, making no mention of Kent's involvement. However, in a later edition of the book, Brettingham's son admitted that "the general idea was first struck out by the Earls of Leicester and Burlington, assisted by Mr. William Kent". In 1734, the first foundations were laid; however, building was to continue for thirty years, until the completion of the great house in 1764. Design The Palladian style was admired by Whigs such as Thomas Coke, who sought to identify themselves with the Romans of antiquity. Kent was responsible for the external appearance of Holkham; he based his design on Palladio's unbuilt Villa Mocenigo, as it appears in I Quattro Libri dell'Architettura, but with modifications. The plans for Holkham were of a large central block of two floors only, containing on the piano nobile level a series of symmetrically balanced state rooms situated around two courtyards. No hint of these courtyards is given externally; they are intended for lighting rather than recreation or architectural value. This great central block is flanked by four smaller, rectangular blocks, or wings, and at each corners is linked to the main house not by long colonnades—as would have been the norm in Palladian architecture—but by short two-storey wings of only one bay. Exterior The external appearance of Holkham can best be described as a huge Roman palace. However, as with most architectural designs, it is never quite that simple. Holkham is a Palladian house, and yet even by Palladian standards the external appearance is austere and devoid of ornamentation. This can almost certainly be traced to Coke himself. The on-site, supervising architect, Matthew Brettingham, related that Coke required and demanded "commodiousness", which can be interpreted as comfort. Hence rooms that were adequately lit by one window, had only one, as a second might have improved the external appearance but could have made a room cold or draughty. As a result, the few windows on the piano nobile, although symmetrically placed and balanced, appear lost in a sea of brickwork; albeit these yellow bricks were cast as exact replicas of ancient Roman bricks expressly for Holkham. Above the windows of the piano nobile, where on a true Palladian structure the windows of a mezzanine would be, there is nothing. The reason for this is the