House prices in 10 London boroughs have hit new highs putting further pressure on housing affordability in the capital, according to figures released today. According to the LSL Property Services/Acadametrics House Price Index for England and Wales, average house prices in London have risen 11.8% since last June with Kensington & Chelsea witnessing the highest increase of 38%, taking the average price of a property in the borough to £1,064,801. There have also been dramatic rises in the Cit...