The Circle Line, according to a recent survey quoted in Property Review.It goes on to say that prices of homes along the Circle Line are the most expensive in London, averaging more than £1.2million. The zone 1 tube line serves 27 stations and runs for 14 miles through prime central London, including Sloane Square and Notting Hill. The Victoria Line was the second most expensive to live on, with average prices around £1.1 million. For full details of the survey see www.findaproperty.com