London prices have risen by 10.9%, according to latest Land Registry figures, the fastest rate since July 2010.
The average price of a home in the capital now stands at £409, 881.
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Pilots taking off or landing at the west London airport were targeted 151 times in 2016.
All private hire drivers must sit the test at a cost to the driver of £180 unless they can prove they have a qualification in English GCSE.