Sold house prices in SL9 have an overall average of £899,248, based on all 3,941 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 SL9, the median sold price over the 12 months to July 2026 was £791,250 — it fell 4.7% on the year before. That reflects 270 recorded sales. Detached homes are the priciest at a median of £1,010,500, while flat/maisonette homes are the most affordable at £386,874. Over the past year, other homes moved the most (-17.2%). New-build homes were 2.9% of recent sales, a share that is rising.
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 | £1,010,500 | -12.1% | 133 |
| Flat/Maisonette | £386,874 | -14% | 68 |
| Semi-detached | £731,900 | +2.7% | 32 |
| Terraced | £595,000 | +1.7% | 29 |
| Other | £523,500 | -17.2% | 8 |
Change compares the median for the last 12 months with the 12 months before.
| Sector | 2022 | 2023 | 2024 | 2025 | 2026 | Median |
|---|---|---|---|---|---|---|
| SL9 0 | +8.7% | -2.5% | -4.1% | +12.2% | -2.2% | £836,250 |
| SL9 7 | +12.3% | -3.1% | -11% | +9.1% | -47.2% | £700,000 |
| SL9 8 | +3.1% | -14.2% | +24.6% | -7.7% | -25.3% | £725,000 |
| SL9 9 | +11.9% | -11.1% | -9.3% | +23% | -11.4% | £585,000 |
Year-on-year change in the median sold price; green = up, red = down. Final column is the latest-year median.
New-build homes were 2.9% of sales in the latest year, and the share is ▲ rising 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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