sentences:  The building is important in the history of English architecture as the first structure to be completed in the neo-classical style, which was to transform English architecture.Begun in 1619 and designed by Inigo Jones in a style influenced by Andrea Palladio, the Banqueting House was completed in 1622 at a cost of £15,618, 27 years before King Charles I of England was beheaded on a scaffold in front of it in January 1649.The building was controversially re-faced in Portland stone in the 19th century, though the details of the original façade were faithfully preserved.