SO21 1DE

Alresford and Itchen Valley · Winchester · England

Updated September 2026

Compare this postcode

Location overview

Drag to pan. Use + or - to zoom. Open larger map
Post town
Winchester
Local authority
Winchester
Constituency
Winchester
Postcode district
SO21
Postcode sector
SO21 1

Nearby postcodes

Nearby postcode distances
Postcode Distance
SO21 1DD 164 m
SO21 1DB 357 m
SO21 1FS 707 m
SO21 1BJ 819 m
SO21 1AU 873 m
Complete postcode fields and official codes
Postcode
SO21 1DE
Status
Current
Introduced
1 January 1980
Terminated
Not published
Postcode area
SO
Postcode district
SO21
Postcode sector
SO21 1
Latitude
51.084892
Longitude
-1.242173
British National Grid easting
453,176
British National Grid northing
132,004

Statistical and administrative geographies

Country
England · E92000001
Region
South East · E12000008
Local authority district
Winchester · E07000094
Parish or community
E04004671
Westminster constituency
Winchester · E14001587
Output area
E00118064
Lower layer super output area
Winchester 002A · E01023236
Middle layer super output area
Winchester 002 · E02004830

Postcode source versions

Explore SO21

Use the wider postcode district to compare the same evidence across more locations.

Property

At this postcode

View all property records
35 recorded sales at this postcode
Address Date Price
6, The Row, Avington, Winchester, SO21 1DE 23 October 2025 £585,000
7, The Row, Avington, Winchester, SO21 1DE 9 June 2025 £650,000
The Cedar House, Avington, Winchester, SO21 1DE 5 December 2024 £1,782,500

Schools

Within 3.1 miles of this postcode

View all nearby schools
Open schools
6
Primary
3
Secondary
0
  1. Itchen Abbas Primary School

    Community school

    1.1 km
  2. Prince's Mead School

    Other independent school

    3.2 km
  3. Leigh House Hospital

    Miscellaneous

    3.8 km

Recorded crime

Within 1 mile of this postcode

View all nearby crime records
Published events
29
Months covered
12
Latest month
June 2026

Most recorded categories in this period

  • Violence and sexual offences 8
  • Criminal damage and arson 6
  • Burglary 5
  • Vehicle crime 5
  • Other theft 3

Census 2021

Population and age profile

Postcode residents
31

16 female, 15 male

Postcode households
16
Residents per household
1.9
SO21 1 residents
8,143

Age bands in SO21 1

Wider postcode sector
Age 0 to 14
19.2%

1,521 residents

Age 15 to 24
8.5%

673 residents

Age 25 to 44
20.7%

1,644 residents

Age 45 to 64
28.6%

2,270 residents

Age 65 and over
23%

1,820 residents

This postcode contained 0.4% of the sector's usual residents on Census Day. The age profile describes the wider SO21 1 sector, not people in this individual postcode.

How to read these estimates
The standard postcode headcounts and the commissioned age table are separate ONS outputs. Small counts are disclosure-controlled, and totals can differ slightly between tables. Coverage is England and Wales only.

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+
0%
Ultrafast, 100 Mbit/s+
0%
Ultrafast, 300 Mbit/s+
0%
Gigabit-capable
0%
Unable to receive decent fixed or FWA broadband
0%
Next Generation Access
100%
Decent broadband available from fixed wireless
0%
Coverage is a modelled postcode-level snapshot, not a speed test or a guarantee for a named property. Check availability with providers before making a decision. Ofcom does not publish postcode-level full-fibre coverage in this release for commercial-confidentiality reasons.

Source: Ofcom Connected Nations Spring 2026, version 2026-01-v2. Contains Ofcom data licensed under the Open Government Licence v3.0.

Nearby transport

  • Old Station Road

    BCT · Itchen Abbas

    0.6 miles
  • Old Station Road

    BCT · Itchen Abbas

    0.6 miles
  • Village Hall

    BCT · Itchen Abbas

    0.6 miles
  • Village Hall

    BCT · Itchen Abbas

    0.6 miles
  • Chilland Lane

    BCT · Couch Green

    0.8 miles

Relative deprivation

English Indices of Deprivation 2025 for Winchester 002A, 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

7 of 10

Overall England rank

23,333 of 33,755

Income
10 of 10
Employment
10 of 10
Education and skills
10 of 10
Health and disability
10 of 10
Crime
6 of 10
Housing and services
1 of 10
Living environment
2 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
0
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

A factual reading of the data in this report's scope. It is not a location score or a recommendation.

Property market

Recorded sales

The five-year median is £650,000 from 5 recorded sales in SO21 1DE. This is a recorded-sale statistic, not a current valuation.

The latest UK House Price Index average for Winchester is £471,136 in June 2026, up 4.6% year on year.

Schools

Published establishments

6 open schools are in scope, including 3 primary and 0 secondary schools. Itchen Abbas Primary School is the nearest published school at 0.7 miles.

Counts describe active establishment records. They do not assess admissions, catchments or quality.

Recorded crime

Published police records

29 published events cover 12 months, averaging 2.417 events per published month. The largest recorded category is Violence and sexual offences with 8 events.

The source publishes anonymised street-level events. These figures are not a measure of safety for an individual address.