House prices fell by 3.1% year-on-year in March, marking the biggest annual decline since July 2009, Nationwide Building Society said.
The figures also showed a monthly price fall of 0.8% – the seventh consecutive fall – which leaves prices 4.6% below their August peak.
Robert Gardner, Nationwide’s chief economist, said: “The housing market reached a turning point last year as a result of the financial market turbulence which followed the mini-budget.
“Since then, activity has remained subdued – the number of mortgages approved for house purchase remained weak at 43,500 cases in February, almost 40% below the level prevailing a year ago.
“It will be hard for the market to regain much momentum in the near term since consumer confidence remains weak and household budgets remain under pressure from high inflation.
“Housing affordability also remains stretched, where mortgage rates remain well above the lows prevailing at this point last year.”
Nine out of 13 regions showed annual house price declines in the first financial quarter – Scotland recorded the weakest performance, with prices down 3.1% compared to a year ago, a sharp slowdown from the 3.3% year-on-year increase seen in the previous quarter.
East Anglia had been the strongest-performing region last quarter but it saw a significant slowdown in this quarter, with prices down 1.8% year-on-year, giving it the weakest performance in England.
The outer South East fell 1.5% year-on-year and London was down 1.4%.
The West Midlands, however, registered the strongest performance, with prices up 1.4% compared with a year ago, and prices in Northern Ireland were up 1.3% year-on-year.
In Wales, price growth slowed from 4.5% to a decline of 0.7%.
Prices were largely flat in northern England, while southern England saw a 1.1% decline.
Nathan Emerson, chief executive of Propertymark, the professional body for estate agents, said: “Our member agents are reporting transaction levels year on year to be stable and listings of new properties coming to the market also being steady.
“With a stream of serious buyers still keen to move, and prices still higher compared to this time last year, sellers are still in a strong position to sell, however they can no longer test the market at higher prices and align with those achieved last year. Instead, they will need to reduce or be open to offers in order to get a more realistic and efficient sale.”