Sold house prices in SO31 have an overall average of £381,896, based on all 10,564 residential sales on record — drawn from every recorded UK house sale.
Medians over the most recent 12 months of all UK property sales (to July 2026). Median is used, not mean — it isn't skewed by the odd very-high sale.
Across SO31, the median sold price over the 12 months to July 2026 was £370,000 — it was little changed on the year before. That reflects 763 recorded sales. Detached homes are the priciest at a median of £529,000, while flat/maisonette homes are the most affordable at £200,000. Over the past year, other homes moved the most (+20.4%). Within SO31, the SO31 9 sector saw the strongest recent growth (+20%) and SO31 5 the softest (-12%).
New-build homes were 0% of recent sales, a share that is falling.
These figures track the median of prices actually paid, not a like-for-like index. A move can reflect a change in what sold — more new homes, or a different mix of house types and sizes — as much as any change in what a given home is worth.
| Type | Median | 12-month change | Sales |
|---|---|---|---|
| Detached | £529,000 | -1.1% | 312 |
| Semi-detached | £347,500 | -4.8% | 188 |
| Terraced | £291,000 | -4.6% | 148 |
| Flat/Maisonette | £200,000 | -4.8% | 99 |
| Other | £392,500 | +20.4% | 16 |
Change compares the median for the last 12 months with the 12 months before.
| Sector | 2022 | 2023 | 2024 | 2025 | 2026 | Median |
|---|---|---|---|---|---|---|
| SO31 1 | -20.6% | +50.4% | -16.3% | +12.5% | -9.8% | £345,000 |
| SO31 4 | -4% | +7.2% | -11.6% | +2% | +4.5% | £334,500 |
| SO31 5 | +15.7% | -5.7% | +1.7% | -0.2% | -11.7% | £302,500 |
| SO31 6 | +12.6% | -6.4% | -3.8% | +1.8% | -2.5% | £351,000 |
| SO31 7 | +1.3% | -4.8% | +3.6% | -1.1% | +1.3% | £395,000 |
| SO31 8 | +6.5% | -3.8% | -6.6% | +14.4% | -5.8% | £317,000 |
| SO31 9 | +1.5% | +1.7% | -5% | +0% | +20% | £510,000 |
Year-on-year change in the median sold price; green = up, red = down. Final column is the latest-year median.
New-build homes were 0% of sales in the latest year, and the share is ▼ falling over the period — a marker of how much new housing is being built here (not a price forecast). See the new-build chart above.
How these figures are calculated. Year-on-year change compares the median sold price over the most recent 12 months of data with the 12 months before it. We use the median, not the average, so a few unusually high or low sales don't distort it. Because HM Land Registry data lags — sales take time to be registered — the most recent month or two are provisional and tend to revise upward. Figures track the mix of what actually sold, so they are not a like-for-like index. The same method is used across this site, so an area's figure here matches its ranking in investment trends.
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