Insurers More Th<n have been Yappy tracking... looking for clues that point to an influx of Young Affluent Professionals (commonly believed to be the first sign of a local property boom). The number one clue, apparently, is spending on consumer electrics - in particular, iPods and plasma TVs. Others include home broadband connections and air miles, particularly if racked up on short city breaks. (Apparently, a third fiendish clue of the presence of Young Affluent Professionals is the presence of young people earning £27,000 or more. Right.) That's not all: More Th<n have compiled a Yappy Index, and used it to locate some future hotspots. There are eight London neighbourhoods In the Top Ten, but - like just about every place in London - they've pretty much up-and-come already:

Lancaster Gate (1)
Belsize Park (2)
Ealing Broadway (3)
Frognal and Fitzjohns, Camden (5)
Pembridge, Kensington & Chelsea (6)
Queens Gate, Kensington & Chelsea (7)
Hampstead (8)
Campden, Kensington & Chelsea (9)

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