Sold house prices in CM21 have an overall average of £438,934, based on all 2,484 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 CM21, the median sold price over the 12 months to July 2026 was £430,000 — it fell 9% on the year before. That reflects 161 recorded sales. Detached homes are the priciest at a median of £607,500, while flat/maisonette homes are the most affordable at £221,250. Over the past year, other homes moved the most (+162%). 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 |
|---|---|---|---|
| Semi-detached | £492,500 | +1.5% | 44 |
| Flat/Maisonette | £221,250 | +0.6% | 39 |
| Detached | £607,500 | -10.6% | 37 |
| Terraced | £345,000 | -14.6% | 37 |
| Other | £602,500 | +162% | 4 |
Change compares the median for the last 12 months with the 12 months before.
| Sector | 2022 | 2023 | 2024 | 2025 | 2026 | Median |
|---|---|---|---|---|---|---|
| CM21 0 | +12.2% | -1.1% | +8% | -11.3% | -3.3% | £504,250 |
| CM21 9 | -4% | -3.9% | +8.4% | +5.1% | +5.5% | £399,000 |
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.
📈 See investment trends across Hertfordshire →
Estate agency businesses registered in CM21.