CML data for 2011 reveals Aldermore has leapt up from 24th to joint 17th in the league table, increasing its lending by £300 million and giving it a 0.3% share of the market.
Charles Haresnape, Aldermore Managing Director of Residential Mortgages, said: "Given that the mortgage business was built from scratch and only launched in May 2010, this is a remarkable achievement in such a short period of time.
"Moving into 17th place is a clear demonstration that the consumer is willing to move away from the more traditional high street brands and come to challenger banks such as Aldermore as a credible alternative. I expect us to climb even further up the table in 2012."
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