Most buy-to-let landlords plan to increase their property portfolios or leave them untouched in 2008, according to a new study. Financial Times

The report from the largest buy-to-let lender Bradford & Bingley, which questioned 3,867 landlords, appears to shrug off growing concerns about the impact of the credit squeeze that has made it more expensive for investors to get a mortgage.

Landlords seem to be undaunted by worries about the slowing housing market, with 86% planning to increase their property portfolios or leave them untouched over the next six months. The study also finds that the average portfolio stands at 6.1 properties, up from an average of 5.7 just six months ago.

Investors have been piling into the buy-to-let sector in recent years, in spite of a weakening in the underlying fundamentals.