UK householders everywhere bar London think the value of their homes have fallen this month, a new Knight Frank survey shows.

The real estate firm said that householders in the UK have now perceived falls in value every month since June 2010.

According to the latest Knight Frank/Markit House Price Sentiment Index, about 17 per cent of households said the price of their home has declined in July, while 8 per cent said it has risen, giving a House Price Sentiment Index of 45.6, down from 46.3 in June. Any figure under 50 indicates that prices are falling.

The survey, which included 1,500 households across the UK, showed that London - with a score of 51- was the only region out of 11 where households felt the value of their home had risen over the past month. The East Midlands reported the biggest falls in prices with 41.6.

The index also showed that people under and over the age of 45 diverged on the outlook for prices: those over 45 expect house prices to fall over the next year while under-45s expect them to rise.

Knight Frank thinks the index moves ahead of mainstream house price indices, showing the advantage of an opinion-based survey providing current views on household sentiment, rather than historic evidence from transactions or mortgage market evidence.