> ## Content Index
> Fetch the complete content index at: https://wisener.net/llms.txt
> Use this file to discover other available public pages before exploring further.

# Source: House Price Index - HPI
- URL: https://wisener.net/source-house-price-index-hpi/
- Published: 2025-08-31T23:00:00.000Z
- Updated: 2026-10-12T18:27:27.000Z
- Description: 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.
- Author: Lee Wisener
- Tags: House, HPI, Index, Price, #Import 2026-10-12 18:55

The House Price Index (HPI) is a valuable tool for understanding how the average house price has changed over several decades.

[https://www.gov.uk/government/statistical-data-sets/uk-house-price-index-data-downloads-june-2025](https://www.gov.uk/government/statistical-data-sets/uk-house-price-index-data-downloads-june-2025?ref=wisener.net)

The current file size is just over 32MB, so not great, but not terrible. Easy one to upload and manage. 

Provided under the Open Government License V3.0

It’s a large dataset by field with 64 in total.

Along with the average price, you can break it down between:

- **Regions** → England, Wales, Scotland and Northern Ireland. So you can drill down into each Nation.
- **Property type** → Detached, Semi, Terraced and flat.
- **AveragePrice** → average property price (main headline figure).
- **Index** → HPI index (base = Jan 2015 = 100).
- **IndexSA** → seasonally adjusted index.
- **1m%Change** → monthly change.
- **12m%Change** → annual change.
- **AveragePriceSA** → seasonally adjusted average price.
- **SalesVolume** → number of sales (lagged, back-filled later).
- Most of the rest are indices, used for statistical comparison, less digestible but be useful depending on need.

### **Most useful in practice**

For dashboards/analysis, you’ll likely use:

- AveragePrice, 1m%Change, 12m%Change (headline)
- Property-type splits (DetachedPrice, SemiDetachedPrice, etc.) for structural insights
- Funding split (CashPrice, MortgagePrice) to show how cash vs mortgage differ
- Buyer type (FTB vs FOO) for affordability trends
- New vs Old property splits
- SalesVolume (with caveat: lags by a few months, often blank for the current month)

## Notes:

FTB – First Time Buyer  
FOO – Former Owner Occupier (Just means someone who owned a house is moving or buying another)  
New – Brand new house  
Old – Every other property that is not brand new