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SL4 4NG

Clewer & Dedworth East · Windsor and Maidenhead · England

Updated September 2026

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Location overview

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Post town
Windsor
Ward
Clewer & Dedworth East
Local authority
Windsor and Maidenhead
Constituency
Windsor
Postcode district
SL4
Postcode sector
SL4 4

Nearby postcodes

Nearby postcode distances
Postcode Distance
SL4 4DZ 64 m
SL4 4EA 64 m
SL4 4DY 75 m
SL4 4DU 84 m
SL4 4DX 100 m
Complete postcode fields and official codes
Postcode
SL4 4NG
Status
Current
Introduced
1 January 1980
Terminated
Not published
Postcode area
SL
Postcode district
SL4
Postcode sector
SL4 4
Latitude
51.475770
Longitude
-0.643537
British National Grid easting
494,302
British National Grid northing
176,073

Statistical and administrative geographies

Country
England · E92000001
Region
South East · E12000008
Local authority district
Windsor and Maidenhead · E06000040
Electoral ward
Clewer & Dedworth East · E05012499
Parish or community
E43000259
Westminster constituency
Windsor · E14001588
Output area
E00083600
Lower layer super output area
Windsor and Maidenhead 013C · E01016557
Middle layer super output area
Windsor and Maidenhead 013 · E02003433

Postcode source versions

Explore SL4

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

Property

At this postcode

View all property records
6 recorded sales at this postcode
Address Date Price
12, Foster Avenue, Windsor, SL4 4NG 2 August 2019 £389,500
8, Foster Avenue, Windsor, SL4 4NG 31 March 2016 £383,000
12, Foster Avenue, Windsor, SL4 4NG 23 March 2012 £250,000

Schools

Within 3.1 miles of this postcode

View all nearby schools
Open schools
47
Primary
20
Secondary
10

  1. Hilltop First School

    Community school

    250 m

  2. Dedworth Green First School

    Academy converter

    367 m

  3. Dedworth Middle School

    Academy converter

    449 m

Recorded crime

Within 1 mile of this postcode

View all nearby crime records
Published events
1,367
Months covered
12
Latest month
June 2026

Most recorded categories in this period

  • Violence and sexual offences 533
  • Vehicle crime 129
  • Anti social behaviour 122
  • Other theft 111
  • Public order 108

Census 2021

Population and age profile

Postcode residents
18

9 female, 9 male

Postcode households
6
Residents per household
3.0
SL4 4 residents
10,568

Age bands in SL4 4

Wider postcode sector
Age 0 to 14
18.8%

2,099 residents

Age 15 to 24
9.7%

1,081 residents

Age 25 to 44
25.6%

2,858 residents

Age 45 to 64
26.6%

2,970 residents

Age 65 and over
19.3%

2,160 residents

This postcode contained 0.2% of the sector's usual residents on Census Day. The age profile describes the wider SL4 4 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+
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%
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.

NHS ODS

GP practices

9

within 5 km

  • CLARENCE MEDICAL CENTRE

    VANSITTART ROAD, WINDSOR, SL4 5AS

    ODS code K81074

    1.8 km

  • LEE HOUSE SURGERY

    84 OSBORNE ROAD, WINDSOR, SL4 3EW

    ODS code K81046

    2.0 km

  • SHEET STREET SURGERY

    21 SHEET STREET, WINDSOR, SL4 1BZ

    ODS code K81068

    2.7 km

  • SOUTH MEADOW SURGERY

    3 CHURCH CLOSE, ETON, WINDSOR, SL4 6AP

    ODS code K81630

    2.7 km

  • THE VILLAGE MEDICAL CENTRE

    45 MERCIAN WAY, CHIPPENHAM, SLOUGH, SL1 5ND

    ODS code K81082

    4.1 km

  • DATCHET HEALTH CENTRE

    GREEN LANE, DATCHET, SLOUGH, SL3 9EX

    ODS code K81021

    4.7 km

  • CHAPEL MEDICAL CENTRE

    SLOUGH WALK IN CENTRE, UPTON HOSPITAL, ALBERT STREET, SLOUGH, SL1 2BJ

    ODS code Y00265

    4.8 km

  • DR NABI

    261 BATH ROAD, SLOUGH, SL1 5PP

    ODS code K81608

    4.9 km

  • HERSCHEL MEDICAL CENTRE

    45 OSBORNE STREET, SLOUGH, SL1 1TT

    ODS code K81043

    4.9 km

Organisation records, not service availability
These are records marked active in NHS England's Organisation Data Service for England and Wales. Branch surgeries, pharmacies, dentists and hospitals are not included. They do not confirm patient registration, services, opening hours, appointments or care quality. Distances are straight-line from the postcode point.

Source acquired on 2026-09-03. Contains information from NHS England, licenced under the current version of the Open Government Licence.

Nearby transport

  • Foster Avenue

    BCT · Dedworth

    0.0 miles

  • The Maypole

    BCT · Dedworth

    0.1 miles

  • Sebastopol

    BCT · Clewer Green

    0.1 miles

  • Sebastopol

    BCT · Clewer Green

    0.1 miles

  • Osgood Park

    BCT · Dedworth

    0.1 miles

Relative deprivation

English Indices of Deprivation 2025 for Windsor and Maidenhead 013C, 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

8 of 10

Overall England rank

24,588 of 33,755

Income
6 of 10
Employment
8 of 10
Education and skills
6 of 10
Health and disability
10 of 10
Crime
7 of 10
Housing and services
5 of 10
Living environment
6 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
1
Low risk addresses
1
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.

Schools

Published establishments

47 open schools are in scope, including 20 primary and 10 secondary schools. Hilltop First School is the nearest published school at 250 m.

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

Recorded crime

Published police records

1,367 published events cover 12 months, averaging 113.917 events per published month. The largest recorded category is Violence and sexual offences with 533 events.

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