There are 39% more properties on the market worth over £1 million in the UK than there were in January 2010, according to research from property portal Primelocation.com.

It found there are now 37% more properties on the market worth £2 million+ than in January, 46% more properties worth £5 million+ and 52% more properties worth £10 million+. This compares to a 0.4% fall in the average asking price for a mass market property during 2010.

In London, there has been a 22% increase in available properties worth over £1 million since January, far slower than the 39% increase seen nationally. This now gives the capital a reduced share of the UK’s £1 million + property for sale market.

However, London still has more £1 million+ properties on the market than anywhere else in the country – 42% of properties in this price range are in the capital.

The proportion of properties on the market at over £10 million in London has fallen from 48% in January to just 27% of the UK total. The fall in available £10 million+ valued property in London could in part be due to the wealthy overseas property investors capitalising on a weakened pound by buying up the capital’s most desirable properties, Primelocation.com suggests.

Andrew Smith, research director at Primelocation.com, said: “2010 may have been a difficult year for most homeowners