Turmoil in the London flat market has now spread to other cities around the country, stark figures show. Flat owners in city centres across Britain are seeing the price of their properties plummet. Across the country as a whole, 25 per cent of flat sellers have sold at a loss over the past year. Many affluent southern commuter-belt areas, alongside central London postcodes, have also seen flat owners bear widespread losses. In other areas of Greater Manchester, flat owners are also unlikely to sell at a loss.