The price of farmland across England and Wales is set to fall further over the year ahead as concerns over Brexit hit buyer demand, according to a survey.

A report by the Royal Institution of Chartered Surveyors and the Royal Agricultural University showed that 49 per cent of those polled expected prices to fall for all types of UK farms over the next 12 months.

It found that uncertainty over the impact of the Brexit vote is depressing demand as buyers question the future of the UK farming industry outside the EU.

Jitters in the sector were being caused by confusion over what will replace the Common Agricultural Policy (CAP), which delivers financial support to EU farmers, including those in the UK.

That compounded industry woes caused by low commodity prices, the survey found.

But the Government’s announcement last week that CAP would be kept in place until 2020, along with any agricultural schemes agreed to before the Autumn Statement, could allay fears, according to RICS.

Jeremy Blackburn, the head of policy at RICS, said: “The Government’s two or three-year safety net was announced after our survey was closed.

“And it remains to be seen how the rural land market will perform in light of these medium term measures.”

The survey showed the average cost per acre of farmland fell 2.7 per cent to £10,751 in the first half of the year from £11,049 in the second half of 2015.

Commercial farmland is expected to suffer the worst of the downturn going forward.

The price difference between bare farmland and those with homes attached has been growing, with house prices in most areas still on the rise over the past year, the survey found.

Official figures on Tuesday showed residential house prices continued to grow steadily in June, rising by 8.7 per cent compared with a year earlier.

The RICS/RAU survey suggests individual farmers still make up about 60 per cent of all buyers, though “lifestyle” buyers account for around a quarter of all demand.

Meanwhile, average rents for arable land dropped by 8.8 per cent in the first half of the year, and by 3.1 per cent over the past 12 months.

But there may be hope on the horizon thanks to the Bank of England’s recent rate cut and economy-boosting package of measures to help support lending to households and businesses.

RICS senior economist Jeff Matsu said: “Going forward, at least some encouragement can be taken from the potential for the Bank of England’s monetary policy stimulus to support activity.

“The fall in sterling should prove beneficial to agricultural exporters and farmlands’ safe haven status may attract long-term investors, particularly for any prime holdings.”