Property is the largest asset most people own, and house prices directly affect financial planning — from retirement wealth to inheritance tax liabilities. Several organisations publish regular UK house price data, but they each measure slightly different things and can tell different stories. Here is a guide to the main indices, what they track, and where to access them.
HM Land Registry UK House Price Index
The UK House Price Index (UK HPI) is the most comprehensive measure of house prices because it is based on completed sales recorded by HM Land Registry (England and Wales), Registers of Scotland, and Land and Property Services (Northern Ireland).
- Coverage: All residential property transactions, including cash purchases — not just mortgaged sales
- Methodology: Repeat-sales regression model that tracks price changes of the same properties over time
- Frequency: Monthly, with a 2-3 month lag (because sales must complete and be registered)
- Breakdown: National, regional, local authority, and property type (detached, semi-detached, terraced, flat)
Because it covers all sales and uses actual transaction prices, the UK HPI is widely considered the most reliable long-term measure of UK house prices.
GOV.UK: UK House Price Index Reports →
ONS House Price Statistics
The Office for National Statistics (ONS) publishes monthly and quarterly house price statistics using Land Registry data but with additional analytical context.
- Coverage: England and Wales (monthly), UK-wide (quarterly)
- Added value: Affordability ratios (house prices vs earnings), first-time buyer vs existing owner analysis, regional comparisons
- Frequency: Monthly and quarterly bulletins
The ONS affordability data is particularly useful for understanding whether property prices are sustainable relative to local incomes.
Halifax House Price Index
The Halifax House Price Index is one of the longest-running house price measures in the UK, published by Halifax (part of Lloyds Banking Group).
- Coverage: UK-wide, based on Halifax mortgage approvals only
- Methodology: Standardised mix-adjusted model that controls for property type, region, and other characteristics
- Frequency: Monthly, released within the first week of the following month (much faster than Land Registry)
- Limitation: Only includes properties purchased with a Halifax mortgage, so it is a sample rather than the full market
The Halifax index is valued for its timeliness — it gives an early indication of where prices are heading before the official data catches up.
Nationwide House Price Index
The Nationwide House Price Index is published by Nationwide Building Society and is the other major lender-based index alongside Halifax.
- Coverage: UK-wide, based on Nationwide mortgage approvals
- Methodology: Mix-adjusted, controlling for property type and region
- Frequency: Monthly, typically released on the last working day of the month (the fastest major index)
- Extras: Nationwide publishes useful supplementary research on affordability, first-time buyers, and regional trends
Nationwide: House Price Index →
Rightmove House Price Index
The Rightmove House Price Index measures asking prices rather than actual sale prices. It tracks the prices at which properties are listed on the Rightmove portal.
- Coverage: England and Wales, based on the largest property portal with over 90% of estate agents listing
- What it shows: Seller sentiment and market activity rather than actual transaction values
- Frequency: Monthly, released mid-month
- Limitation: Asking prices are often higher than sale prices, especially in slower markets. The gap between asking and achieved prices is itself a useful indicator of market conditions.
Rightmove is most useful as a leading indicator — rising asking prices often signal growing confidence before transaction data confirms the trend.
Rightmove: House Price Index →
Zoopla House Price Index
The Zoopla House Price Index uses data from property listings and mortgage valuations to estimate price trends.
- Coverage: UK-wide, combining listing data with agreed sale prices where available
- Extras: Publishes detailed research reports on affordability, rental markets, and regional analysis
- Frequency: Monthly reports
RICS UK Residential Market Survey
The Royal Institution of Chartered Surveyors (RICS) publishes a monthly survey of estate agents, surveyors, and valuers across the UK.
- What it shows: Sentiment indicators including new buyer enquiries, agreed sales, price expectations, and stock levels
- Why it matters: It is a forward-looking survey — respondents report on what they expect to happen, making it useful for predicting market direction
- Frequency: Monthly
RICS: Residential Market Survey →
Which Index Should You Use?
Each index has its strengths:
| Index | Best For | Speed |
|---|---|---|
| UK HPI (Land Registry) | Most accurate long-term picture | 2-3 month lag |
| ONS | Affordability analysis | 2-3 month lag |
| Halifax | Early transaction signal | ~1 week lag |
| Nationwide | Fastest transaction data | Same month |
| Rightmove | Leading indicator / asking prices | Same month |
| Zoopla | Market research and rental data | Same month |
| RICS | Forward-looking sentiment | Same month |
For financial planning purposes, the UK HPI (Land Registry) is the gold standard for historical analysis and property valuations. For monitoring current trends, the Halifax and Nationwide indices provide the most timely transaction-based data. The RICS survey is the best predictor of future direction.
Important: This article is for general educational purposes only and does not constitute financial advice. Tax rules can change and individual circumstances vary. If you need advice tailored to your situation, please consult a qualified, FCA-regulated financial adviser. You can browse advisers in our adviser directory.