Inside an expensive London flat for sale
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One in five foreign firms buy up London's top homes

4 December 2012 Last updated at 20:06 GMT

BBC London has obtained new figures from the Land Registry that reveal one in five properties in the capital's most expensive streets is owned by a foreign company.

Robin Punt discovers how money from overseas has saturated the housing market and speaks to property agent Noel De Keyzer of Savills Sloane Street and Sherry Bennett of Union Developments who say the trend is unlikely to end any time soon.