Indeed, the lender's research showed that one in every five landlords holds three properties in their portfolio.
This data is seen to reinforce the demand for multiple income based buy-to-let products, with landlords' net worth now growing at the same pace as the market itself.
TMB also predicts that personal income based criteria will attract a greater focus in 2008 as borrowers look to facilitate multiple buy-to-let purchases.
David Murphy, sales and marketing director at TMB, said: “Being able to offer a product based on income rather than the traditional rental projection method provides an ideal solution for those buy-to-let properties that don't fit the traditional rental calculations.
"Packagers should certainly have buy-to-let firmly on their radar this year in order to maximise all opportunities."
