Property market
The five-year median is £452,000 from 1 recorded sale in SG3 6LJ. 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.
SG3 6LJ
Welwyn East · Welwyn Hatfield · England
Updated September 2026
Compare this postcodeLocation overview
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- Post town
- Knebworth
- Ward
- Welwyn East
- Local authority
- Welwyn Hatfield
- Constituency
- Welwyn Hatfield
- Postcode district
- SG3
- Postcode sector
- SG3 6
Nearby postcodes
Complete postcode fields and official codes
- Postcode
- SG3 6LJ
- Status
- Current
- Introduced
- 1 January 1980
- Terminated
- Not published
- Postcode area
- SG
- Postcode district
- SG3
- Postcode sector
- SG3 6
- Latitude
- 51.851960
- Longitude
- -0.180211
- British National Grid easting
- 525,435
- British National Grid northing
- 218,605
Statistical and administrative geographies
- Country
- England · E92000001
- Region
- East of England · E12000006
- Local authority district
- Welwyn Hatfield · E07000241
- Electoral ward
- Welwyn East · E05011072
- Parish or community
- E04004823
- Westminster constituency
- Welwyn Hatfield · E14001573
- Output area
- E00121698
- Lower layer super output area
- Welwyn Hatfield 001C · E01023967
- Middle layer super output area
- Welwyn Hatfield 001 · E02004980
Postcode source versions
- Ordnance Survey: Code-Point Open Version 2026-08 · Current postcode units in Great Britain · OGL-3.0
- Office for National Statistics: ONS Postcode Directory Version 2026-08 · United Kingdom; Northern Ireland excluded pending rights review; Crown Dependencies outside product scope · OGL-3.0 with third-party rights
- Ordnance Survey: Boundary-Line Version 2026-05 · Local-authority boundaries in Great Britain · OS OpenData Licence
Explore SG3
Property
8 recorded
sales at this postcode
| Address | Date | Price |
|---|---|---|
| 1, New Court, Woolmer Green, Knebworth, SG3 6LJ | 19 February 2026 | £452,000 |
| 4, New Court, Woolmer Green, Knebworth, SG3 6LJ | 26 March 2021 | £270,000 |
| 3, New Court, Woolmer Green, Knebworth, SG3 6LJ | 17 December 2020 | £410,000 |
Schools
Within 3.1 miles of this postcode
- Open schools
- 28
- Primary
- 20
- Secondary
- 2
- 161 m
St Michael's Woolmer Green CofE VA Primary School
Voluntary aided school
- 1.3 km
All Saints Church of England Voluntary Aided Primary School, Datchworth
Voluntary aided school
- 1.4 km
Knebworth Primary and Nursery School
Community school
Recorded crime
Within 1 mile of this postcode
- Published events
- 293
- Months covered
- 12
- Latest month
- June 2026
Most recorded categories in this period
- Violence and sexual offences 115
- Anti social behaviour 54
- Shoplifting 26
- Criminal damage and arson 21
- Public order 18
Census 2021
Population and age profile
- Postcode residents
- 10
- Postcode households
- 6
- Residents per household
- 1.7
- SG3 6 residents
- 7,208
5 female, 5 male
Age bands in SG3 6
Wider postcode sector- Age 0 to 14
- 16.3%
- Age 15 to 24
- 9.2%
- Age 25 to 44
- 23.4%
- Age 45 to 64
- 29%
- Age 65 and over
- 22.1%
1,165 residents
655 residents
1,665 residents
2,066 residents
1,576 residents
This postcode contained 0.1% of the sector's usual residents on Census Day. The age profile describes the wider SG3 6 sector, not people in this individual postcode.
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
Ofcom's predicted availability across all residential and commercial premises in this postcode in January 2026.
- 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%
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 Spring 2026, version 2026-01-v2. Contains Ofcom data licensed under the Open Government Licence v3.0.
GP practices
4
within 5 km
KNEBWORTH & MARYMEAD PRACTICE
7 ST MARTINS ROAD, KNEBWORTH, SG3 6ER
ODS code E82035
1.5 km
BRIDGE COTTAGE SURGERY
41 HIGH STREET, WELWYN, AL6 9EF
ODS code E82019
3.5 km
SHEPHALL HEALTH CENTRE
RIDLINS END, STEVENAGE, SG2 9QZ
ODS code E82056
4.4 km
WATTON PLACE CLINIC
HIGH STREET, WATTON AT STONE, HERTFORD, SG14 3SY
ODS code E82121
4.5 km
Main GP practices only; branch surgeries are excluded. Distances are straight-line. Contact the practice to check registration, services, opening hours and appointments.
Source acquired on 2026-09-05. Contains information from NHS England, licenced under the current version of the Open Government Licence.
Nearby transport
- 0.1 miles
Red Lion PH
BCT · Woolmer Green
- 0.1 miles
Red Lion PH
BCT · Woolmer Green
- 0.2 miles
Oak Road
BCT · Woolmer Green
- 0.2 miles
Oak Road
BCT · Woolmer Green
- 0.2 miles
Wickfield
BCT · Woolmer Green
Relative deprivation
English Indices of Deprivation 2025 for Welwyn Hatfield 001C, the published LSOA linked to this postcode. Decile 1 contains the most deprived 10% of English LSOAs and decile 10 the least deprived 10%.
Overall IMD decile
9 of 10
Overall England rank
27,739 of 33,755
- Income
- 7 of 10
- Employment
- 8 of 10
- Education and skills
- 8 of 10
- Health and disability
- 8 of 10
- Crime
- 9 of 10
- Housing and services
- 4 of 10
- Living environment
- 9 of 10
These are relative area statistics, not measures of an individual household, affluence or absolute change. They cannot be compared with indices for other UK nations. Source: English Indices of Deprivation 2025, version 2025-v2.
Flood risk
Environment Agency long-term indicators for the area around addresses in this postcode. They are not an assessment of any individual property and do not show current or forecast flooding.
- High risk addresses
- 0
- Medium risk addresses
- 2
- Low risk addresses
- 2
- Groundwater flood alert area
- Unlikely
Source: Environment Agency flood-risk postcode search tool data, version 2026-06-18. Check the long-term risk for an individual area. © Environment Agency copyright and/or database right 2025. All rights reserved.
Evidence in context
Schools
28 open schools are in scope, including 20 primary and 2 secondary schools. St Michael's Woolmer Green CofE VA Primary School is the nearest published school at 161 m.
Counts describe active establishment records. They do not assess admissions, catchments or quality.
Recorded crime
293 published events cover 12 months, averaging 24.417 events per published month. The largest recorded category is Violence and sexual offences with 115 events.
The source publishes anonymised street-level events. These figures are not a measure of safety for an individual address.