Britons looking to sell their properties have been told the best and worst performing areas across the country when it comes to sale price. According to Nationwide’s latest House Price Index, East Anglia is the weakest performing UK area in terms of house price growth. “Our regional house price indices are produced quarterly, with data for Q2 (the three months to June) showing a mixed picture, with some regions seeing a modest pick up in growth, but others still recording annual price declines,” said Nationwide’s chief economist Robert Gardner. According to new data, East Anglia was the “weake…