A young girl hangs from railings where her helium-filled birthday balloons signal the party is soon to commence as her mother prepares indside their fine house in an exclusive and classically-designed location in Belgravia, London. The pastel-coloured balloons rise up in a breeze as the girl is self-absorbed on her big day. 103 Eaton Place faces Eaton Square, one of London's three garden squares built by Thomas Cubitt and the Grosvenor family when they developed the main part of Belgravia from 1826 until 1855. Belgravia attracts actors, politicians, ambassadors, big-budget bankers, traders and Prime Ministers like Neville Chamberlain and Stanley Baldwin at number 93.