The five largest lenders in the UK accounted for 82% of all mortgage lending activity in 2009, according to the CML.
Business secretary Vince Cable has conceded the UK's biggest banks may not be split along "crude lines" but instead firewalls could be introduced to separate retail and investment arms.
Vince Cable has voiced concerns over the appointment of Bob Diamond as the new Barclays chief executive, fuelling the row over whether big banks should be broken up.
Barclays is set to name its investment banking boss Bob Diamond as successor to current chief executive John Varley.
Barclays has announced it will create a maximum of 600 jobs in Scotland.
Around 20% of SIPP holders use the product as a supplement to their main pension, a Barclays Stockbrokers study has found.
Natasha Jhunjhunwala, of Barclays Capital, explains the benefits of investing in equity market volatility
Barclays Bank violated US sanctions in dealings with Cuba, Iran, Libya, Sudan and Burma, court papers have revealed.
The Bank of England is today expected to lower its economic growth forecast for the UK and raise its expectations for inflation next year.
Barclays has so far paid £194m to settle a US-led probe into payments made to countries or people on a sanctions list.