The design of the Banqueting House is classical in concept. It introduced a refined Italianate Renaissance style that was unparalleled in the free and picturesque Jacobean architecture of England, where Renaissance motifs were still filtered through the engravings of Flemish Mannerist designers. The roof is essentially flat and the roofline is defined by a balustrade. On the street façade, the engaged columns, of the Corinthian and Ionic orders, the former above the latter, stand atop a high, rusticated basement and divide the seven bays of windows.