Property research desk

Market notes, data checks & field commentary

Some notes on housing-market research, methodology updates, and source notes, built to show how the signals are interpreted and where the numbers come from. Best case, you find it interesting, worst, you killed some time whilst the kettle boils.

Technical: Understanding Deprivation Data in the UK, and How It Connects to Postcodes, Maps, and Boundaries

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November 1, 2025

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Technical: Understanding Deprivation Data in the UK, and How It Connects to Postcodes, Maps, and Boundaries

Learn how UK deprivation data works, where it comes from, how it links to postcodes, and why Northern Ireland has no open postcode lookup.

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October 21, 2025

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Source: Understanding the Deprivation Index on This Site

Deprivation - Learn how the UK Deprivation Index works, how GSS codes and postcodes link datasets, and how deprivation is measured across England, Scotland, and Wales.

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October 7, 2025

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Source: New Build vs Existing Property Sales: Fresh UK Data Added

Explore UK data on new build vs existing property sales, showing annual volumes, price trends and regional patterns from HM Land Registry.

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September 13, 2025

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Source: EPC Certificates for Scotland

EPC certificates for Scotland are now live. Unlike most Scottish property data that hides behind a paywall, this dataset is freely available. That said, the data quality could do with a sense-check, some of the errors make you wonder if anyone’s checking the homework!

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September 1, 2025

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Source: Outer Prime London - The Best of Both Worlds

The source postcodes I am using for Outer Prime London. There is debate on these, but they are generally accepted as being correct amongst most.

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September 1, 2025

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Source: House Price Index - HPI

House Price Index (HPI) data is provided by gov.uk as a single file, not small but not large by any means. The data is available monthly and dates back to 1968.

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Market notes, data checks & field commentary

Technical: Understanding Deprivation Data in the UK, and How It Connects to Postcodes, Maps, and Boundaries

Source: Understanding the Deprivation Index on This Site

Source: New Build vs Existing Property Sales: Fresh UK Data Added

Source: EPC Certificates for Scotland

Source: Outer Prime London - The Best of Both Worlds

Source: House Price Index - HPI

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