London's elite 'pushed out of exclusive postcodes by super rich'

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"The changes happening at the top end of the market are real, and although they do not affect large numbers of people directly, the ripple effects they generate do resonate across London," Glucksberg said.

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"The old elite would have bought their curtains and food locally. Now the hairdresser comes to you, the food is delivered. Even going to restaurants -- chefs come and cook [for the super rich] in their house."