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.

Source

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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Source

August 31, 2025

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Source: Mortgage Approvals

Mortgage Approval data used on this site is provided by the Bank of England. It is not available in a single source and has to be built from codes.

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August 30, 2025

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Source: EPC Reports

EPC reports contain a wealth of useful data that can be utilised in conjunction with Land Registry sales or as a standalone dataset. It's big, though! But, it provides additional detail the Land Registry does not.

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Source

August 22, 2025

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Source: Ultra Prime Central London

Ultra Prime Central Postcodes are a natural follow-on from Prime Central London, the top end of the London property ladder with prices beyond £100m.

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August 21, 2025

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Source: Prime Central London Postcodes

A specific interest, for me, if nobody else is, is the high-end property market in London, key to that is identifying what is considered Prime Central London.

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Market notes, data checks & field commentary

Source: Outer Prime London - The Best of Both Worlds

Source: House Price Index - HPI

Source: Mortgage Approvals

Source: EPC Reports

Source: Ultra Prime Central London

Source: Prime Central London Postcodes

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