Government figures today showed that house prices in August fell by 1.3% on a year ago - the fifth month in a row to show a year-on-year drop.
The Department for Communities and Local Government reported an average sale price of £208,476, a figure which has not been seasonally adjusted.
But the Government data also revealed that on a monthly basis prices went up by 0.6% over July - a sharper rise than the 0.4% increase in August last year and 0.3% the previous month.
The monthly figures showed August enjoyed the largest price rise since March, when there was a 1.1% increase.
Howard Archer, chief UK and European economist at IHS Global Insight, described the 0.6% rise in August as an "upward surprise".
But he said the data "does not change our view that house prices are likely to fall by 5% through to mid-2012".
He pointed out that August is normally a strong month for housing market activity.
The 1.3% drop seen over the year is not as sharp as the dip felt in July, when prices fell by 1.5% over 12 months.
Average prices decreased during the year to August in all UK countries, by 1.2% in England to an average £216,196, 0.3% in Wales to £149,807, and 1.5% in Scotland to £163,790, while the sharpest drop was felt by Northern Ireland, which saw a 4.3% tumble to £144,163.
In the English regions, the North East saw the sharpest price fall over the year to August, experiencing a 4.8% drop, while London registered an annual 3.2% rise.
Prices paid by first-time buyers were £153,158, 1.8% lower on average than a year earlier and those paid by former owner occupiers also decreased by 1.1% to £242,579.
New properties were 9.2% more expensive on average than a year earlier, typically £198,687, while prices for pre-owned houses decreased by 2% to £209,249.