SL4 6NB maps, stats, and open data
SL4 6NB lies on Cornwall Close in Eton Wick, Windsor. SL4 6NB is located in the Eton & Castle electoral ward, within the unitary authority of Windsor and Maidenhead and the English Parliamentary constituency of Windsor. The Sub Integrated Care Board (ICB) Location is NHS Frimley ICB - D4U1Y and the police force is Thames Valley. This postcode has been in use since January 1980.
SL4 6NB maps
Source: OS VectorMap District (Ordnance Survey)
Licence: Open Government Licence (requires attribution)
SL4 6NB geodata
| Easting | 494461 |
| Northing | 178437 |
| Latitude | 51.496992 |
| Longitude | -0.640633 |
Where is SL4 6NB?
| Street | Cornwall Close |
| Locality | Eton Wick |
| Town/City | Windsor |
| Country | England |
| Postcode District | SL4 |
SL4 6NB Elevation
Elevation or altitude of SL4 6NB as distance above sea level:
| Metres | Feet | |
|---|---|---|
| Elevation | 20m | 66ft |
Elevation is measured from the approximate centre of the postcode, to the nearest point on an OS contour line from OS Terrain 50, which has contour spacing of ten vertical metres.
➜ How high above sea level am I? Find the elevation of your current position using your device's GPS.
Politics
| Ward | Eton & Castle |
|---|---|
| Constituency | Windsor |
House Prices
Sales of detached houses in SL4 6NB
21, CORNWALL CLOSE, ETON WICK, WINDSOR, SL4 6NB 2009 11 SEP £310,000 |
28, CORNWALL CLOSE, ETON WICK, WINDSOR, SL4 6NB 2006 27 JUL £312,000 |
22, CORNWALL CLOSE, ETON WICK, WINDSOR, SL4 6NB 2006 13 APR £225,000 |
21, CORNWALL CLOSE, ETON WICK, WINDSOR, SL4 6NB 2006 31 MAR £285,000 |
27, CORNWALL CLOSE, ETON WICK, WINDSOR, SL4 6NB 1995 8 DEC £120,000 |
Licence: Contains HM Land Registry data © Crown copyright and database right 2026. This data is licensed under the Open Government Licence v3.0.
Transport
Nearest bus stops to SL4 6NB
| Tilstone Avenue (Eton Wick Road) | Eton Wick | 167m |
| Moores Lane (Eton Wick Road) | Eton Wick | 182m |
| Tilstone Avenue (Eton Wick Road) | Eton Wick | 207m |
| Moores Lane (Eton Wick Road) | Eton Wick | 231m |
| Bell Lane (Eton Wick Road) | Eton Wick | 363m |
Nearest railway stations to SL4 6NB
| Windsor & Eton Central Station | 2.6km |
| Windsor & Eton Riverside Station | 2.7km |
| Burnham (Berks) Station | 3km |
Broadband
Broadband access in SL4 6NB (2020 data)
| Percentage of properties with Next Generation Access | 100.0% |
| Percentage of properties with Superfast Broadband | 100.0% |
| Percentage of properties with Ultrafast Broadband | 100.0% |
| Percentage of properties with Full Fibre Broadband | 0.0% |
Superfast Broadband is between 30Mbps and 300Mbps
Ultrafast Broadband is > 300Mbps
Broadband speed in SL4 6NB (2019 data)
Download
| Median download speed | 52.5Mbps |
| Average download speed | 75.5Mbps |
| Maximum download speed | 350.00Mbps |
Upload
| Median upload speed | 9.8Mbps |
| Average upload speed | 9.3Mbps |
| Maximum upload speed | 20.00Mbps |
Broadband limitations in SL4 6NB (2020 data)
| Percentage of properties unable to receive 2Mbps | 0.0% |
| Percentage of properties unable to receive 5Mbps | 0.0% |
| Percentage of properties unable to receive 10Mbps | 0.0% |
| Percentage of properties unable to receive 30Mbps | 0.0% |
SL4 6NB gas and electricity consumption
Estimated total energy consumption in SL4 6NB by fuel type, 2015.
Gas
| Consumption (kWh) | 386,217 |
|---|---|
| Meter count | 28 |
| Mean (kWh/meter) | 13,793 |
| Median (kWh/meter) | 13,907 |
Electricity
| Consumption (kWh) | 93,261 |
|---|---|
| Meter count | 28 |
| Mean (kWh/meter) | 3,331 |
| Median (kWh/meter) | 2,965 |
- Consumption: The estimated total energy consumption, in kWh, across all meters in SL4 6NB, for 2015.
- Meter count: The total number of meters in SL4 6NB.
- Mean: The mean average consumption per meter, in kWh.
- Median: The median average consumption per meter, in kWh.
Source: Postcode level electricity estimates: 2015 (experimental)
Licence: Open Government Licence
Deprivation
27.6% of English postcodes are less deprived than SL4 6NB:Food Standards Agency
Three nearest food hygiene ratings to SL4 6NB (metres)
➜ Get more ratings from the Food Standards Agency
Nearest post box to SL4 6NB
| Last Collection | |||
|---|---|---|---|
| Location | Mon-Fri | Sat | Distance |
| Asda Superstore | 16:30 | 10:45 | 1,377m |
| Hunters Lane | 18:30 | 10:45 | 1,478m |
| Richards Way | 18:15 | 10:45 | 1,648m |
Environment
| Risk of SL4 6NB flooding from rivers and sea | Low |
SL4 6NB ITL and SL4 6NB LAU
The below table lists the International Territorial Level (ITL) codes (formerly Nomenclature of Territorial Units for Statistics (NUTS) codes) and Local Administrative Units (LAU) codes for SL4 6NB:
| ITL 1 Code | Name |
|---|---|
| TLJ | South East (England) |
| ITL 2 Code | Name |
| TLJ1 | Berkshire, Buckinghamshire and Oxfordshire |
| ITL 3 Code | Name |
| TLJ11 | Berkshire |
| LAU 1 Code | Name |
| E06000040 | Windsor and Maidenhead |
SL4 6NB census areas
The below table lists the Census Output Area (OA), Lower Layer Super Output Area (LSOA), and Middle Layer Super Output Area (MSOA) for SL4 6NB:
| Code | Name | |
|---|---|---|
| OA | E00083652 | |
| LSOA | E01016568 | Windsor and Maidenhead 010C |
| MSOA | E02003430 | Windsor and Maidenhead 010 |
Nearest postcodes to SL4 6NB
| SL4 6ND | Leeson Gardens | 82m |
| SL4 6NF | Tilstone Avenue | 109m |
| SL4 6NA | Queens Road | 120m |
| SL4 6LY | Victoria Road | 133m |
| SL4 6LP | Elizabeth Place | 142m |
| SL4 6NE | Eton Wick Road | 149m |
| SL4 6LX | Eton Wick Road | 161m |
| SL4 6NG | Tilstone Close | 171m |
| SL4 6NP | Eton Wick Road | 204m |
| SL4 6NQ | Eton Wick Road | 206m |
- Contains OS data © Crown copyright and database right (2026)
- Contains Royal Mail data © Royal Mail copyright and Database right (2026)
- Contains National Statistics data © Crown copyright and database right (2026)
- Data produced by Land Registry © Crown copyright (2026)
- Contains Environment Agency data licensed under the Open Government Licence v3.0
- Everything else © GetTheData Publishing Limited (2026)
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