Property market
The five-year median is £4,000,000 from 1 recorded sale in SN3 4DG. This is a recorded-sale statistic, not a current valuation.
The latest UK House Price Index average for Swindon is £265,666 in June 2026, up 4.4% year on year.
SN3 4DG
South Marston · Swindon · England
Updated September 2026
Compare this postcodeLocation overview
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- Post town
- Swindon
- Ward
- South Marston
- Local authority
- Swindon
- Constituency
- Swindon North
- Postcode district
- SN3
- Postcode sector
- SN3 4
Nearby postcodes
Complete postcode fields and official codes
- Postcode
- SN3 4DG
- Status
- Terminated
- Introduced
- 1 January 1992
- Terminated
- 1 May 2018
- Postcode area
- SN
- Postcode district
- SN3
- Postcode sector
- SN3 4
- Latitude
- 51.575394
- Longitude
- -1.731123
- British National Grid easting
- 418,729
- British National Grid northing
- 186,315
Statistical and administrative geographies
- Country
- England · E92000001
- Region
- South West · E12000009
- Local authority district
- Swindon · E06000030
- Electoral ward
- South Marston · E05016299
- Parish or community
- E04012669
- Westminster constituency
- Swindon North · E14001536
- Output area
- E00078646
- Lower layer super output area
- Swindon 009C · E01015551
- Middle layer super output area
- Swindon 009 · E02003220
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 SN3
Property
1 recorded
sale at this postcode
| Address | Date | Price |
|---|---|---|
| Toys R Us, Oxford Road, Stratton St Margaret, Swindon, SN3 4DG | 3 September 2021 | £4,000,000 |
Schools
Within 3.1 miles of this postcode
- Open schools
- 50
- Primary
- 33
- Secondary
- 6
- 806 m
Colebrook Infant Academy
Academy converter
- 806 m
Colebrook Junior School
Community school
- 1.1 km
Covingham Park Primary School
Academy converter
Recorded crime
Within 1 mile of this postcode
- Published events
- 810
- Months covered
- 12
- Latest month
- June 2026
Most recorded categories in this period
- Violence and sexual offences 364
- Anti social behaviour 98
- Public order 85
- Criminal damage and arson 64
- Shoplifting 53
Census 2021
Population and age profile
- Postcode residents
- Not supplied
- Postcode households
- Not supplied
- Residents per household
- Not available
- SN3 4 residents
- 13,036
Age bands in SN3 4
Wider postcode sector- Age 0 to 14
- 15.2%
- Age 15 to 24
- 10%
- Age 25 to 44
- 23.5%
- Age 45 to 64
- 29%
- Age 65 and over
- 22.3%
1,972 residents
1,299 residents
3,054 residents
3,774 residents
2,898 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.
GP practices
10
within 5 km straight-line
MERCHISTON SURGERY
HIGHWORTH ROAD, STRATTON ST MARGARET, SWINDON, SN3 4BF
ODS code J83001
1.8 km
ELDENE SURGERY
COLINGSMEAD, ELDENE, SWINDON, SN3 3TQ
ODS code J83047
2.2 km
KINGSWOOD SURGERY
KINGSWOOD AVENUE, PARK NORTH, SWINDON, SN3 2RJ
ODS code J83038
2.7 km
PRIORY ROAD MEDICAL CENTRE
PARK SOUTH, SWINDON, SN3 2EZ
ODS code J83024
2.8 km
HAWTHORN MEDICAL CENTRE
MAY CLOSE, CRICKLADE ROAD, SWINDON, SN2 1UU
ODS code J83027
3.3 km
THE LAWN MEDICAL CENTRE
GUILDFORD AVENUE, SWINDON, SN3 1JL
ODS code J83059
3.7 km
WHALEBRIDGE PRACTICE
THE WHALEBRIDGE PRACTICE, SWINDON NHS HEALTH CENTRE, 1 ISLINGTON ST, SWINDON, SN1 2DQ
ODS code J83033
3.8 km
VICTORIA CROSS SURGERY
168-169 VICTORIA ROAD, SWINDON, SN1 3BU
ODS code J83633
3.9 km
PARK LANE PRACTICE
7-9 PARK LANE, SWINDON, SN1 5HG
ODS code J83646
4.9 km
ABBEY MEADS MEDICAL PRACT
ABBEYMEADS VILLAGE CENTRE, ELSTREE WAY, SWINDON, SN25 4YZ
ODS code J83035
5.0 km
Nearby transport
- 0.2 miles
Sainsburys
BCT · Stratton Park
- 0.2 miles
Sainsburys
BCT · Stratton Park
- 0.2 miles
White Hart
BCT · Stratton Park
- 0.3 miles
Corinium Way
BCT · Coleview
- 0.3 miles
Corinium Way
BCT · Coleview
Relative deprivation
English Indices of Deprivation 2025 for Swindon 009C, 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
27,683 of 33,755
- Income
- 9 of 10
- Employment
- 8 of 10
- Education and skills
- 5 of 10
- Health and disability
- 6 of 10
- Crime
- 10 of 10
- Housing and services
- 8 of 10
- Living environment
- 8 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.
Evidence in context
Schools
50 open schools are in scope, including 33 primary and 6 secondary schools. Colebrook Infant Academy is the nearest published school at 806 m.
Counts describe active establishment records. They do not assess admissions, catchments or quality.
Recorded crime
810 published events cover 12 months, averaging 67.5 events per published month. The largest recorded category is Violence and sexual offences with 364 events.
The source publishes anonymised street-level events. These figures are not a measure of safety for an individual address.