In a further blow to the private rented sector, the Government has made it clear that it will give the Bank of England sweeping powers to regulate buy-to-let mortgages.

It is just the latest in a series of whammies aimed at reducing the size of the industry, with inevitable effects for both landlords and agents.

From next April, landlords face a 3% Stamp Duty surcharge when they purchase.

The amount of tax relief they can claim is to be cut, with a change to landlords being taxed on turnover and not profits. And landlords who try to exit the sector will be stung by having to pay Capital Gains Tax much sooner than at present.

Yesterday, the Treasury launched its consultation on clamping down on buy-to-let borrowing, which includes draft regulation.

The Financial Policy Committee within the Bank of England would have powers to limit what they can lend to buy-to-let landlords.

This could be done by lowering loan-to-value and demanding a higher ratio of rental income over and above mortgage payments.

Chancellor George Osborne said that the consultation “is the next step in ensuring that the FPC has the tools it needs to protect our economy”.

The Residential Landlords Association reacted with anger, saying that making access to buy-to-let lending harder risked choking off supply of rental homes.

Alan Ward, RLA chairman, said: “There is no clear evidence that the property boom is caused by buy-to-let investors, when rising prices are mainly concentrated in London and the south-east.

“This is largely fuelled by foreign investors and speculators treating our property as a commodity.

“The RLA supports the principle of the Bank of England ensuring that lending does not pose a risk to the stability of the financial sector. It is important that lenders do not saddle landlords with debts which they cannot pay back. But landlord investment is essential to the supply of homes to rent.

“The overwhelming majority of landlords are responsible borrowers providing homes as a long-term business.”

The Council of Mortgage Lenders predicted the number of new buy-to-let mortgages will drop by 22% over the next two years.

It expects 116,000 new buy-to-let mortgages this year, the highest since 2007. Next year, it forecasts the number to drop to 105,000, and to 90,000 in 2017.

The consultation, which mortgage guru Ray Boulger has described as a “farce”, follows a Financial Times interview with Mark Carney.

In it, Carney signalled that he is “fearful of the risk that investors would all seek to sell at the same time if there were a general decline in house prices”.

Paul Smee, of the CML, said: “We understand the rationale for putting the macroprudential tools at the Bank of England’s disposal, but also recognise that this does not necessarily mean they will be used.

“In our view, buy-to-let does not constitute a market that currently requires further macroprudential intervention, especially as the effect of several recent tax changes is yet to be fully felt and evaluated.

“We urge policymakers to be mindful of the risk of unintended consequences that could adversely affect the private rented sector, alongside their focus on ensuring that the buy-to-let market does not pose a threat to financial stability.”

Yesterday, the managing director of Hunters also expressed concern.

Glynis Frew said: “There have been a number of attacks on landlords recently, including the Autumn Statement’s 3% Stamp Duty announcement.

“Landlords as a whole are being portrayed as greedy investors who are looking to take advantage of tenants. This is simply not the case. The majority of landlords actually own one buy-to-let property and are your typical average Joes.

“It seems strange that no such restriction is in place for those with multiple properties of 15 or more.

“Such financial burdens will inevitably lead to a further rise in rents, as landlords will have to compensate for the extra measures somewhere.”

The consultation, which is open until March 11, can be found here