Postcode district
AL9: house prices and neighbourhoods
The AL9 postcode district (East Hertfordshire, Welwyn Hatfield): 429 live postcodes across 6 neighbourhoods, with official figures as of 11 October 2026.
Typical house price
£607,500
Median of 18 resales of existing houses in AL9, Aug 2025 to Aug 2026.
Source: HM Land Registry Price Paid Data
Neighbourhoods in AL9
| Neighbourhood | Council | Typical house | Typical flat | Affluence today | Signs of gentrification |
|---|---|---|---|---|---|
| Watton-at-Stone, Bramfield & Bayford | East Hertfordshire | £662,250 | £243,000 | Affluent | Moving the other way |
| Brookmans Park | Welwyn Hatfield | £1,015,000 | £385,000 | Among the most affluent | Clear signs |
| Hatfield East | Welwyn Hatfield | £480,000 | £272,225 | Middle income | Few signs |
| Hatfield North & West | Welwyn Hatfield | £435,000 | £235,000 | Middle income | Moving the other way |
| Hatfield Town | Welwyn Hatfield | £385,000 | £185,000 | Below average income | Moving the other way |
| Welham Green | Welwyn Hatfield | £482,500 | – | Middle income | Few signs |
Each neighbourhood's figures are the median resale prices of houses and flats, Affluence today and the gentrification indication from its own page.
Thinking of buying in AL9?
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Prepare a full report for a home See a sample reportNeighbourhood names: House of Commons Library, MSOA Names, Open Parliament Licence v3.0. Contains HM Land Registry data © Crown copyright and database right 2026. This data is licensed under the Open Government Licence v3.0. Contains National Statistics data © Crown copyright and database right 2026. Figures describe the area, not any home, and are not a valuation or a prediction.