Property prices: How much did your neighbours make? But these figures disguise the widely diverging property markets in different regions of the country. London has seen the highest rise, up 4.2% year-on-year, while the North West has seen a decrease of 3.5% and the North East a fall of 2.6% over the same period. Detached homes sold for an average of £254,000 last month, while flats/maisonettes and semi-detached houses both sold for just over £150,000 and terraced homes for an average of £123,000. The most recent figures available show that there were 488 properties sold in England and Wales for more than £1m in December 2011, down from 559 in December 2010.