Summary
The UK House Price Index and Price Paid Data are related but serve different buyer tasks. UK HPI is best for price trends and area level context, while HM Land Registry Price Paid Data is best for checking individual completed sales in England and Wales. A buyer should use UK HPI for market direction and Price Paid Data for local comparable evidence.
Definition
The UK House Price Index is the official house price index for the UK, published monthly with reports and data tables. It shows average prices, index movements and changes by geography and property type. Price Paid Data is HM Land Registry’s dataset of residential property sale prices in England and Wales submitted for registration. It records completed transactions and is useful for comparable sales, but recent months may be incomplete because of registration lag.