TMB believe that this is a significant amount considering that TMB withdrew from the market in July 2004 and did not return fully until February 2005.
Book debt increased by 8.5% from £8.6bn to £9.4bn.
Bill Dudgeon, Managing Director, The Mortgage Business, said: "TMB played an important part in HBOS’ five brand mortgage lending strategy and despite our withdrawal from the market during 2004, we lent a significant amount in comparison to many of our competitors.
"In line with HBOS, we worked to improve the LTV profile of the mortgage portfolio.
"An important factor in our continued success is the comprehensive range of specialised products designed to help intermediaries provide more mortgage solutions for the changing lifestyles of their clients."