SL4 3DD maps, stats, and open data
SL4 3DD lies on St Leonards Road in Windsor. SL4 3DD 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 3DD maps
Source: OS VectorMap District (Ordnance Survey)
Licence: Open Government Licence (requires attribution)
SL4 3DD geodata
| Easting | 496372 |
| Northing | 176137 |
| Latitude | 51.475997 |
| Longitude | -0.613723 |
Where is SL4 3DD?
| Street | St Leonards Road |
| Town/City | Windsor |
| Country | England |
| Postcode District | SL4 |
SL4 3DD Elevation
Elevation or altitude of SL4 3DD as distance above sea level:
| Metres | Feet | |
|---|---|---|
| Elevation | 30m | 98ft |
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 |
Transport
Nearest bus stops to SL4 3DD
| Knights Place (St Leonards Road) | Windsor | 158m |
| All Saints' Church (Frances Road) | Windsor | 179m |
| All Saints' Church (Frances Road) | Windsor | 202m |
| King Edward Vii Hospital (St Leonards Road) | Windsor | 283m |
| King Edward Vii Hospital (St Leonards Road) | Windsor | 291m |
Nearest railway stations to SL4 3DD
| Windsor & Eton Central Station | 0.8km |
| Windsor & Eton Riverside Station | 1.2km |
| Datchet Station | 2.5km |
Broadband
Broadband access in SL4 3DD (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 | 12.5% |
| Percentage of properties with Full Fibre Broadband | 0.0% |
Superfast Broadband is between 30Mbps and 300Mbps
Ultrafast Broadband is > 300Mbps
Broadband limitations in SL4 3DD (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 3DD gas and electricity consumption
Estimated total energy consumption in SL4 3DD by fuel type, 2015.
Gas
| Consumption (kWh) | 155,455 |
|---|---|
| Meter count | 10 |
| Mean (kWh/meter) | 15,545 |
| Median (kWh/meter) | 9,292 |
Electricity
| Consumption (kWh) | 13,059 |
|---|---|
| Meter count | 9 |
| Mean (kWh/meter) | 1,451 |
| Median (kWh/meter) | 200 |
- Consumption: The estimated total energy consumption, in kWh, across all meters in SL4 3DD, for 2015.
- Meter count: The total number of meters in SL4 3DD.
- 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
24.7% of English postcodes are less deprived than SL4 3DD:Food Standards Agency
Three nearest food hygiene ratings to SL4 3DD (metres)
➜ Get more ratings from the Food Standards Agency
Nearest post box to SL4 3DD
| Last Collection | |||
|---|---|---|---|
| Location | Mon-Fri | Sat | Distance |
| Saint Marks Road | 17:15 | 11:30 | 157m |
| Frances Road | 16:45 | 11:30 | 203m |
| Saint Leonards Road | 17:15 | 11:30 | 226m |
SL4 3DD ITL and SL4 3DD 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 3DD:
| 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 3DD 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 3DD:
| Code | Name | |
|---|---|---|
| OA | E00083538 | |
| LSOA | E01016545 | Windsor and Maidenhead 012A |
| MSOA | E02003432 | Windsor and Maidenhead 012 |
Nearest postcodes to SL4 3DD
| SL4 3BJ | St Leonards Road | 17m |
| SL4 1HJ | Beaumont Road | 37m |
| SL4 3DA | St Leonards Road | 66m |
| SL4 3DE | Osborne Mews | 69m |
| SL4 3DQ | St Leonards Road | 102m |
| SL4 1HY | Beaumont Road | 105m |
| SL4 3ED | Lammas Court | 106m |
| SL4 3LE | Knights Place | 108m |
| SL4 3EN | Osborne Road | 109m |
| SL4 3BG | St Marks Place | 110m |
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- 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
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