Some 42% of intermediaries said more than half of their buy-to-let cases during the third quarter of the year were landlords looking to add to their buy-to-let portfolios.
When asked how they would describe the current level of landlord demand, 26% said that it was either strong or very strong and 45% described it as stable.
The second most popular reason for landlords obtaining a buy-to-let mortgage in the third quarter was remortgaging, with 34% of intermediaries saying that was the case.
When asked for the reasons behind the remortgaging cases in Q3, 44% said it was capital raising, followed by 38% looking for a better rate of interest.
John Heron, managing director of Paragon Mortgages, said: “There is incredible pressure now on rental stock. Letting agents in many regions are reporting that they simply do not have properties available for an increasing number of potential renters.
“In order to meet this increasing level of demand, landlords need to continue to grow their portfolios.
“It is very encouraging that intermediaries are seeing an increase in landlord clients looking to add further property to their portfolios in the coming months. However, intermediaries have said that there needs to be greater innovation in buy-to-let, including access to higher loan to values.
“We hope to see more of this coming through during 2012.”