 George persuaded Parliament to vote him £ 300 @,@ 000 for restoration ( £ 245 million in 2008 terms ) . Under the guidance of George 's advisor , Charles Long , the architect Jeffry Wyatville was selected , and work commenced in 1824 . Wyatville 's own preference ran to Gothic architecture , but George , who had led the reintroduction of the French Rococo style to England at Carlton House , preferred a blend of periods and styles , and applied this taste to Windsor . The terraces were closed off to visitors for greater privacy and the exterior of the Upper Ward was completely remodelled into its current appearance . The Round Tower was raised in height to create a more dramatic appearance ; many of the rooms in the State Apartments were rebuilt or remodelled ; numerous new towers were created , much higher than the older versions . The south range of the ward was rebuilt to provide private accommodation for the king , away from the state rooms . The statue of Charles II was moved from the centre of the Upper Ward to the base of the motte . Sir Walter Scott captured contemporary views when he noted that the work showed " a great deal of taste and feeling for the Gothic architecture " ; many modern commentators , including Prince Charles , have criticised Wyatville 's work as representing an act of vandalism of May 's earlier designs . The work was unfinished at the time of George IV 's death in 1830 , but was broadly completed by Wyatville 's death in 1840 . The total expenditure on the castle had soared to the colossal sum of over one million pounds ( £ 817 million in 2008 terms ) by the end of the project . 
