SL4 3DW maps, stats, and open data
SL4 3DW lies on St Leonards Road in Windsor. SL4 3DW is located in the Old Windsor 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 3DW maps
Source: OS VectorMap District (Ordnance Survey)
Licence: Open Government Licence (requires attribution)
SL4 3DW geodata
| Easting | 496228 |
| Northing | 175693 |
| Latitude | 51.472029 |
| Longitude | -0.615933 |
Where is SL4 3DW?
| Street | St Leonards Road |
| Town/City | Windsor |
| Country | England |
| Postcode District | SL4 |
SL4 3DW Elevation
Elevation or altitude of SL4 3DW 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 | Old Windsor |
|---|---|
| Constituency | Windsor |
House Prices
Sales of detached houses in SL4 3DW
127, ST LEONARDS ROAD, WINDSOR, SL4 3DW 2000 28 APR £380,000 |
143, ST LEONARDS ROAD, WINDSOR, SL4 3DW 1999 15 NOV £100,000 |
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 3DW
| Trevelyan School (St Leonards Road) | Windsor | 138m |
| King Edward Vii Hospital (St Leonards Road) | Windsor | 177m |
| King Edward Vii Hospital (St Leonards Road) | Windsor | 188m |
| Trevelyan School (St Leonards Road) | Windsor | 196m |
| Knights Place (St Leonards Road) | Windsor | 310m |
Nearest railway stations to SL4 3DW
| Windsor & Eton Central Station | 1.3km |
| Windsor & Eton Riverside Station | 1.6km |
| Datchet Station | 2.8km |
Broadband
Broadband access in SL4 3DW (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 3DW (2019 data)
Download
| Median download speed | 60.0Mbps |
| Average download speed | 56.7Mbps |
| Maximum download speed | 200.00Mbps |
Upload
| Median upload speed | 15.2Mbps |
| Average upload speed | 11.6Mbps |
| Maximum upload speed | 20.00Mbps |
Broadband limitations in SL4 3DW (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 3DW gas and electricity consumption
Estimated total energy consumption in SL4 3DW by fuel type, 2015.
Gas
| Consumption (kWh) | 224,532 |
|---|---|
| Meter count | 28 |
| Mean (kWh/meter) | 8,019 |
| Median (kWh/meter) | 6,858 |
Electricity
| Consumption (kWh) | 45,963 |
|---|---|
| Meter count | 19 |
| Mean (kWh/meter) | 2,419 |
| Median (kWh/meter) | 1,885 |
- Consumption: The estimated total energy consumption, in kWh, across all meters in SL4 3DW, for 2015.
- Meter count: The total number of meters in SL4 3DW.
- 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
5.1% of English postcodes are less deprived than SL4 3DW:Food Standards Agency
Three nearest food hygiene ratings to SL4 3DW (metres)
➜ Get more ratings from the Food Standards Agency
Nearest post box to SL4 3DW
| Last Collection | |||
|---|---|---|---|
| Location | Mon-Fri | Sat | Distance |
| Saint Leonards Road | 17:15 | 11:30 | 251m |
| Bolton Avenue | 17:15 | 11:30 | 381m |
| Frances Road | 16:45 | 11:30 | 531m |
SL4 3DW ITL and SL4 3DW 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 3DW:
| 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 3DW 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 3DW:
| Code | Name | |
|---|---|---|
| OA | E00083785 | |
| LSOA | E01016596 | Windsor and Maidenhead 015C |
| MSOA | E02003435 | Windsor and Maidenhead 015 |
Nearest postcodes to SL4 3DW
| SL4 3EE | St Leonards Road | 44m |
| SL4 3FA | Kensington Mews | 65m |
| SL4 3JS | Victor Road | 100m |
| SL4 3JW | Bolton Road | 114m |
| SL4 3JU | Victor Road | 121m |
| SL4 3JN | Bolton Road | 143m |
| SL4 3JX | Bolton Road | 162m |
| SL4 3JL | Bolton Road | 181m |
| SL4 3JR | Bourne Avenue | 198m |
| SL4 3DL | St Leonards Road | 219m |
- 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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