The experienced team at The Bloomsbury Ballroom can help you throw a jazzy Christmas party. The 1920s building is easily reached by car (there’s underground parking) or tube (Holborn). Once there, its main space is an art-deco head turner, with built-in stage and high-spec AV. Next door, the Rose Room has its own bar – and cocktail makers, as required. Home to the London Cabaret Club, the venue also comes with a contacts book full of entertainers.