UK Residential Mortgage Lending by Postcode Sector

Great Britain's residential mortgage lending values across 9,273 postcode sectors. The data is part of a joint reporting exercise coordinated by the British Bankers' Association and the Council of Mortgage Lenders, with figures from seven major lenders covering about 73% of the mortgage market. More information is available from the CML website.

Use Cases

• Analyze regional housing market health based on outstanding mortgage lending values.
• Map credit availability and financial inclusion across Great Britain based on postcode-level data.
• Study the market share and lending patterns of major UK financial institutions.
• Assess data privacy trade-offs in financial reporting for small geographic areas.

Strengths

• Covers 9,273 postcode sectors across Great Britain.
• Aggregates data from seven major lenders representing approximately 73% of the mortgage lending market.
• Part of a coordinated reporting exercise involving the BBA and CML.

Limitations

• Row count and column-level documentation are unknown, limiting suitability assessment.
• Areas with a small number of loans are excluded to protect individual privacy, which may create gaps.
• Description metadata is limited; actual data quality requires manual inspection after download.

Provenance

Source

Joint data reporting exercise coordinated by the British Bankers' Association (BBA) and the Council of Mortgage Lenders (CML).

Collection Method

Aggregated from participating lenders: Barclays Bank, Clydesdale Bank & Yorkshire Bank, HSBC Bank, Lloyds Banking Group, Nationwide Building Society, Santander UK and RBS.

Freshness

Last updated 2026-06-24 21:05:15.672630; freshness should be verified.

Geography

Great Britain