From 1st July the Council of Mortgage Lenders is integrated into a new trade association, UK Finance. For the time being, all UKF mortgage information will continue to be published on this website, and UKF member-only mortgage information will only be available here.

UK Finance represents around 300 firms in the UK providing credit, banking, markets and payment-related services. The new organisation takes on most of the activities previously carried out by the Asset Based Finance Association, the British Bankers’ Association, the Council of Mortgage Lenders, Financial Fraud Action UK, Payments UK and the UK Cards Association. Please go to for wider content and updates from UK Finance.

  1. Home
  2. News
  3. News & Views
  4. CML publishes details of lending by postcode

CML publishes details of lending by postcode


Published: 17 December 2013 | Author: Bernard Clarke

Major mortgage lenders are today publishing for the first time details of their total outstanding residential mortgage lending broken down over 9,000 postcode sectors across Great Britain. The data being published includes most buy-to-let as well as home-owner lending.

The aggregate mortgage data, compiled by the CML, covers Barclays, HSBC, Lloyds Banking Group, Nationwide Building Society, Santander UK, RBS, and Clydesdale and Yorkshire Bank. These lenders, who together represent about 73% of the mortgage market, are also publishing their own data by postcode on an individual basis.

The British Bankers' Association is simultaneously publishing a similar breakdown of lending to small and medium enterprises, and personal loans.

Out of the 10,834 sector postcodes in Great Britain:

  • Data is being published on 9,030 sector postcodes, covering mortgage lending worth around £885 billion;
  • In addition, there are 1,770 sector postcodes where, according to the 2011 census, nobody lives.
  • There are 32 sector postcodes where people do live, and where participating lenders have mortgages, but aggregate data cannot be reported because it might compromise individuals’ data privacy.
  • There are just two sectors where people live but where participating lenders do not have mortgages (however, census data suggest that in both localities there were households with mortgages, which could well be provided by non-participating lenders).

When interpreting the information published today, it is important to bear in mind that that this exercise initially covers only lenders accounting for around three-quarters of the overall mortgage market. With more than 100 active lenders, the mortgage market is fiercely competitive, and this means that local markets may display different market share characteristics.

The detailed statistics at sector postcode level provide maximum possible transparency without compromising data privacy. But interpreting them is less straightforward, especially given the significant variations in factors like house price values, population size and tenure patterns at a local level. 

We are therefore also supplying higher level “postal area” data, covering the 120 postal areas of Great Britain. This data accounts for £891 billion of mortgage lending by participating firms, on the basis that we are able to include some lending that had to be excluded from the more detailed sector breakdown for data privacy reasons, as well as some lending that could not be attributed to a specific sector postcode.

As might be expected, strong levels of mortgage lending are broadly correlated with those areas where there is a strong resident population. Although the dataset covers only three-quarters of the mortgage market, there are reassuringly few surprises in the postcode distribution of mortgage lending.