(This article is about the last remaining fragment of the Palace of Whitehall in central London. For the building where the Chancellor of the Exchequer customarily gives an annual speech, see Mansion House.) The Banqueting House, Whitehall, is the grandest and best known survivor of the architectural genre of banqueting house and the only remaining component of the Palace of Whitehall in London. 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.