The architect and builder was Stiff Leadbetter; designs for interior decorations were provided by Robert Adam from 1761. Built in the Palladian style, of stuccoed brick, the mansion is nine bays long by seven bays deep. It was constructed with the piano nobile on the ground floor and a mezzanine above. The north facade has a large portico of Corinthian columns. The terminating windows of the piano nobile are pedimented and recessed into shallow niches, as are the end bays of the east front. The roof, typically for the palladian style, is hidden by a balustrade. The original plans of the house by Leadbetter show a design closer in appearance to Holkham Hall, with square end towers. Adam cancelled this idea, but embellished the front with the portico.