This summer, it took London real-estate firm Marsh & Parsons less than a month to sell a pricey property in Kensington, one of the most prestigious parts of the British capital.

Sixty-three potential buyers flocked to view the white row house, which has five bedrooms, a ground-floor kitchen and a strip of gravel for a garden. The sale price of £6.75m was both above the asking price and the home's price in 2007, when it was previously for sale and the market was at a record high before the global financial meltdown.