The number of buy-to-let mortgages on the market has dropped drastically in the last year, leaving thousands of landlords struggling to find affordable mortgage deals.

The Daily Telegraph revealed that the number of mortgages available has dropped by 93%, from the 4,384 deals available 12 months ago, to the 307 offers which are currently available to borrowers. Experts have estimated that the lack of availability will affect around 110,000 amateur landlords who only have one buy-to-let mortgage on their portfolio as they do not have enough properties to help prevent the slowing of the market.

The head of mortgages at price comparison website moneysupermarket.com, Louise Cuming, said: "Landlords wishing to remortgage buy-to-let properties will find it difficult, with lenders demanding sizeable deposits or charging higher rates. This could force landlords to re-evaluate whether it is worthwhile staying in the sector in the current climate. With property prices falling though, there may well be many landlords having to sell their investment at a loss."