 The roof is unique; in order to provide as much height as possible no tie beams were provided, instead arched timbers.There was a Royal balcony built for the Prince Regent to watch his horses on the Eastern wall which was later removed.From 1856 to 1864 the stables and the Riding School were let as Cavalry Barracks and on 1 October 1868 the Riding School officially became the town's Corn Exchange.