Welwyn - AL6
The average house price in Welwyn (AL6) was £829,858 in 2025, up 434% from £155,488 in 1995. Prices peaked at £856,196 in 2023.
Over the last ten years, average prices have risen 45% (from £572,574 in 2015). The median sale price in 2025 was £747,218 across 147 sales. 6,062 transactions have been recorded in AL6 since 1995.
So far in 2026, 29 sales have been recorded at an average price of £773,621 (year to date).
2025 prices at a glance
| Property type | Average price | Median price | Sales |
|---|---|---|---|
| All types | £829,858 | £747,218 | 147 |
| Detached | £1,056,893 | £902,500 | 76 |
| Semi-detached | £665,800 | £603,000 | 38 |
| Terraced | £531,303 | £487,500 | 18 |
| Flats/maisonettes | £453,433 | £290,000 | 15 |
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.