Property market
The five-year median is £720,000 from 802 recorded sales in AL6. This is a recorded-sale statistic, not a current valuation.
The latest UK House Price Index average for Welwyn Hatfield is £450,696 in June 2026, up 5.8% year on year.
AL6
UK postcode district
Updated September 2026
District overview
- Postcode units
- 657
- Current units
- 506
- Coordinate coverage
- 100%
- Electoral wards
- 11
Coverage context
- Countries represented
- England
- English regions represented
- East of England
- Local authority codes
- 4
- Terminated postcode units
- 151
Postcode sectors in AL6
Choose a sector to browse its complete postcode-unit directory.
Property
6,275 recorded
sales at this postcode
| Address | Date | Price |
|---|---|---|
| 59, Upper Green, Tewin, Welwyn, AL6 0LX | 23 July 2026 | £500,000 |
| 36, Canonsfield Road, Welwyn, AL6 0QA | 10 July 2026 | £1,200,000 |
| 9, Canonsfield, Welwyn, AL6 0QB | 10 July 2026 | £791,339 |
Schools
Across this district
- Open schools
- 6
- Primary
- 4
- Secondary
- 0
Recorded crime
Across this district
- Published events
- 422
- Months covered
- 12
- Latest month
- June 2026
Most recorded categories in this period
- Violence and sexual offences 144
- Anti social behaviour 85
- Other theft 63
- Burglary 26
- Public order 22
Census 2021
Population and age profile
- AL6 usual residents
- 12,336
- Age-profile population
- 12,426
Age bands in AL6
Postcode district- Age 0 to 14
- 15.8%
- 1,968 residents
- Age 15 to 24
- 9.2%
- 1,149 residents
- Age 25 to 44
- 19.1%
- 2,377 residents
- Age 45 to 64
- 30.6%
- 3,801 residents
- Age 65 and over
- 25.2%
- 3,131 residents
Small counts are adjusted for privacy, so totals can differ slightly between Census tables.
Census Day: 21 March 2021. Sources: ONS/Nomis P001-P004 and ONS CT21_0228. Age table version 2024-04-08.
Fixed broadband coverage
The median Ofcom availability percentage across 501 current postcode units in this district. Each postcode is weighted equally, not by premises.
- Superfast, 30 Mbit/s+
- 100%
- Ultrafast, 100 Mbit/s+
- 100%
- Ultrafast, 300 Mbit/s+
- 100%
- Gigabit-capable
- 100%
- Unable to receive decent fixed or FWA broadband
- 0%
- Next Generation Access
- 100%
- Decent broadband available from fixed wireless
- 0%
In this district, 449 postcode units had 100% superfast coverage, 303 postcode units had 100% gigabit-capable coverage, 0 postcode units had at least some premises without decent fixed or fixed-wireless access.
Predicted coverage, not measured speeds. Check availability for your address with a provider. Postcode-level full-fibre figures are not published in this release.
Source: Ofcom Connected Nations, coverage at January 2026, version 2026-01-v2. Contains Ofcom data licensed under the Open Government Licence v3.0.
GP practices
1
in this district
BRIDGE COTTAGE SURGERY
41 HIGH STREET, WELWYN, AL6 9EF
ODS code E82019
Evidence in context
Schools
6 open schools are in scope, including 4 primary and 0 secondary schools.
Counts describe active establishment records. They do not assess admissions, catchments or quality.
Recorded crime
422 published events cover 12 months, averaging 35 events per published month. The largest recorded category is Violence and sexual offences with 144 events.
The source publishes anonymised street-level events. These figures are not a measure of safety for an individual address.