Higher loan amounts were offered to landlords during Q1 2011, according to the latest Landlord Profile Tracking Index from TBMC.
Data from the buy-to-let and commercial mortgage specialist also reveals:
* Growing interest in tracker rates;
* London is the most popular city for buy-to-let investment followed by Portsmouth, Sheffield and Brighton;
* Over 90% of buy-to-let tenants are families or professionals;
* Terraced houses and flats are the most popular buy-to-let properties.
Andy Young, chief executive at TBMC, said: "The buy-to-let mortgage market is continuing to show signs of growth and development as more lenders enter the marketplace, bringing new product ranges and greater choice for landlords.