House price index
Find out how much a property could be worth, and how its value has changed over time.
About our house price calculator
As the world’s largest building society, we’re able to provide an accurate view of the housing market. We've used this knowledge to create our house price index and our house price calculator.
Our calculator uses data from the index to give you a guide to the change in value of your property. These results are to give you a rough idea of house prices in your area. This figure should be treated as a guide only, and won’t be used in any Nationwide mortgage application.
If you’re a journalist looking for more house price index data or information, please visit our Media Centre.
If you have a Nationwide mortgage
If you have a Nationwide mortgage, we may be able to give you a better idea of how much your home is worth using your mortgage account number.
Understanding your results
The results you'll get from our calculator are based on general price movements in UK regions, rather than specific towns and cities.
It does not take into account differences like quality of fittings or decoration.
For an accurate valuation of your property, we recommend you consult a local estate agent or surveyor.
The Nationwide House Price Indices (NHPI) are prepared from information that we believe is collated with care, but no representation is made as to their accuracy or completeness. We reserve the right to vary our methodology and to edit or discontinue the indices at any time, for regulatory or other reasons.
Persons seeking to place reliance on the indices for any purpose whatsoever do so at their own risk and should be aware that various factors, including external factors beyond Nationwide Building Society’s control might necessitate material changes to the indices.
The NHPI may not be used for commercial purposes, including as a reference for:
1) determining the interest payable, or other sums due, under loan agreements or other contracts relating to investments
2) determining the price at which investments may be bought or sold or the value of investments, or
3) measuring the performance of investments.
Nationwide Building Society is the owner of the trade mark “Nationwide” and all copyright and other rights in the NHPI.
The application of the IOSCO Principles on financial benchmarks to the NHPI is more fully set out in our statement regarding IOSCO Principles - PDF, 260KB (opens in a new window).
Nationwide considers that its arrangements for administration of the NHPI comply with the IOSCO Principles in a proportionate manner having regard to the nature of the index.
Commentary and other materials posted on our website are not intended to amount to advice on which reliance should be placed or an offer to sell or solicit the purchase by you of any products or services that we provide.
We therefore do not accept any liability or responsibility arising from any reliance placed on such materials by any visitor to our website, or by anyone who may be informed of any of its contents.