Buckingham Palace (bŭkˈĭng-əm) [key], residence of British sovereigns from 1837, in Westminster metropolitan borough, London, England, adjacent to St. James's Park. Built (1703) by the duke of Buckingham, it was purchased (1761) by George III and was remodeled (1825) by John Nash; the eastern facade was added in 1847. The great ballroom was added in 1856, and in 1913 Sir Aston Webb designed a new front. The palace has nearly 600 rooms and contains a collection of paintings, including many royal portraits, by noted artists. The Queen's Gallery, opened in 1962 and renovated in 2002, exhibits outstanding works of art from the palace collection.