Chalfont Common - SL9
The average house price in Chalfont Common (SL9) was £1,029,549 in 2025, up 389% from £210,346 in 1995. Prices peaked at £1,061,807 in 2022.
Over the last ten years, average prices have risen 28% (from £802,316 in 2015). The median sale price in 2025 was £870,600 across 320 sales. 11,027 transactions have been recorded in SL9 since 1995.
So far in 2026, 98 sales have been recorded at an average price of £801,518 (year to date).
2025 prices at a glance
| Property type | Average price | Median price | Sales |
|---|---|---|---|
| All types | £1,029,549 | £870,600 | 320 |
| Detached | £1,284,262 | £1,082,500 | 179 |
| Semi-detached | £783,134 | £735,000 | 43 |
| Terraced | £720,712 | £660,000 | 33 |
| Flats/maisonettes | £647,915 | £452,000 | 65 |
Price
Type
Average Price by Year
Median Price by Year
Transaction Volume by Year
Data source: UK Land Registry Price Paid Data. Inflation data: ONS CPI series D7BT. Real prices expressed in 2026 pounds.