In short
In July 2026, the average price of a home in West Northamptonshire was £291,929, +1.2% over twelve months (20% above the East Midlands average). At that price, a home mover pays £4,596 in Stamp Duty Land Tax, plus £150 of HM Land Registry fee.
The questions, answered
What is the average house price in West Northamptonshire?
The average price of a home in West Northamptonshire was £291,929 in July 2026, +1.2% over twelve months (UK House Price Index).
How much does a flat or a house cost in West Northamptonshire?
In July 2026, the average price in West Northamptonshire was £472,440 for a detached house, £285,016 for a semi-detached house, £235,586 for a terraced house, £139,838 for a flat (UK House Price Index).
What do first-time buyers pay in West Northamptonshire?
First-time buyers paid £242,144 on average in West Northamptonshire in July 2026, against £291,929 for all buyers (UK House Price Index).
Have house prices gone up in West Northamptonshire?
The average price in West Northamptonshire went from £217,704 in July 2016 to £291,929 in July 2026, a change of +34.1%; +1.2% over the last twelve months (UK House Price Index).
How much Stamp Duty Land Tax on an average-priced home in West Northamptonshire?
On £291,929, Stamp Duty Land Tax (SDLT) comes to £4,596 for a home mover, £0 for a first-time buyer and £19,193 for an additional property, at the rates in force in England.
How many homes sell in West Northamptonshire?
5,918 sales in West Northamptonshire were registered from May 2025 to April 2026, the latest twelve months with complete volumes (UK House Price Index).
Is West Northamptonshire expensive?
West Northamptonshire ranks 6th of the 20 areas Payotte covers for the average price in July 2026, from £479,736 in Buckinghamshire to £140,447 in County Durham.
Prices by property type, July 2026
| Type | Average price | East Midlands |
|---|---|---|
| Detached | £472,440 | £356,404 |
| Semi-detached | £285,016 | £231,305 |
| Terraced | £235,586 | £187,714 |
| Flat or maisonette | £139,838 | £124,624 |
| All types | £291,929 | £242,274 |
| First-time buyers | £242,144 | £207,106 |
The UK HPI is a mix-adjusted average (a hedonic model), not the price of the homes sold in the month. Northern Ireland figures are quarterly.
The trend, July of each year
| Year | Average price | Change on the year before |
|---|---|---|
| 2016 | £217,704 | — |
| 2017 | £231,512 | +6.3% |
| 2018 | £242,796 | +4.9% |
| 2019 | £238,652 | -1.7% |
| 2020 | £239,620 | +0.4% |
| 2021 | £255,919 | +6.8% |
| 2022 | £282,827 | +10.5% |
| 2023 | £279,702 | -1.1% |
| 2024 | £282,625 | +1% |
| 2025 | £288,576 | +2.1% |
| 2026 | £291,929 | +1.2% |
Sources
- Prices and sales: UK House Price Index, file UK-HPI-full-file-2026-07.csv. Contains HM Land Registry data © Crown copyright and database right 2020. This data is licensed under the Open Government Licence v3.0.
- Purchase tax: rates and sources of the calculator (HMRC).