Huge leap in number of people cashing in and moving out of London in 2015

``The number of people selling up and moving out of London rose by two-thirds in 2015, figures showed on Saturday, as homeowners cashed in on the capital's high house prices or escaped to more affordable parts of the country... High costs in London where, according to the Office for National Statistics, the average price of a home is now above half a million pounds, have also forced first-time buyers and those looking for more space to move out. ''