Despite the downturn in average British property prices, property demand has remained relatively constant within many of London’s affluent suburbs.  For example, property values of over £400 to £700 per square metre remain the norm in the London suburbs of Clapham and of Wandsworth. 

In contrast, the economic downturn has led to a marked reduction in demand for rural or near-rural properties, leading to a reduction in their average price. This article in the Telegraph illustrates how many couples with young children, living in London’s affluent suburbs, are taking advantage of the suburban / rural price differential, and selling their properties in London to move to relatively rural areas with spectacular scenery, train commuting routes, and safety for their children.

http://www.telegraph.co.uk/property/propertymarket/7449526/Londons-wealthy-suburbs-the-rich-landscape.html