SL4 4DN maps, stats, and open data
SL4 4DN lies on Highfield Road in Windsor. SL4 4DN is located in the Clewer & Dedworth East 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 4DN maps
Source: OS VectorMap District (Ordnance Survey)
Licence: Open Government Licence (requires attribution)
SL4 4DN geodata
| Easting | 494533 |
| Northing | 175854 |
| Latitude | 51.473761 |
| Longitude | -0.640287 |
Where is SL4 4DN?
| Street | Highfield Road |
| Town/City | Windsor |
| Country | England |
| Postcode District | SL4 |
SL4 4DN Elevation
Elevation or altitude of SL4 4DN as distance above sea level:
| Metres | Feet | |
|---|---|---|
| Elevation | 40m | 131ft |
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 | Clewer & Dedworth East |
|---|---|
| Constituency | Windsor |
House Prices
Sales of detached houses in SL4 4DN
9, HIGHFIELD ROAD, WINDSOR, SL4 4DN 2024 11 OCT £567,000 |
2017 26 MAY £552,500 |
1995 23 OCT £119,950 |
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 4DN
| Bell View (Clewer Hill Road) | Clewer | 85m |
| Bell View | Clewer | 127m |
| Sebastopol Ph (Clewer Hill Road) | Clewer | 148m |
| Sebastopol Ph (Clewer Hill Road) | Clewer | 154m |
| Manor Farm Close (Clewer Hill Road) | Clewer | 164m |
Nearest railway stations to SL4 4DN
| Windsor & Eton Central Station | 2.3km |
| Windsor & Eton Riverside Station | 2.7km |
| Datchet Station | 4.4km |
Broadband
Broadband access in SL4 4DN (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 | 91.7% |
| Percentage of properties with Full Fibre Broadband | 0.0% |
Superfast Broadband is between 30Mbps and 300Mbps
Ultrafast Broadband is > 300Mbps
Broadband speed in SL4 4DN (2019 data)
Download
| Median download speed | 69.8Mbps |
| Average download speed | 65.9Mbps |
| Maximum download speed | 100.00Mbps |
Upload
| Median upload speed | 19.5Mbps |
| Average upload speed | 15.7Mbps |
| Maximum upload speed | 20.00Mbps |
Broadband limitations in SL4 4DN (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 4DN gas and electricity consumption
Estimated total energy consumption in SL4 4DN by fuel type, 2015.
Gas
| Consumption (kWh) | 213,950 |
|---|---|
| Meter count | 12 |
| Mean (kWh/meter) | 17,829 |
| Median (kWh/meter) | 15,717 |
Electricity
| Consumption (kWh) | 51,205 |
|---|---|
| Meter count | 12 |
| Mean (kWh/meter) | 4,267 |
| Median (kWh/meter) | 4,120 |
- Consumption: The estimated total energy consumption, in kWh, across all meters in SL4 4DN, for 2015.
- Meter count: The total number of meters in SL4 4DN.
- 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
45.1% of English postcodes are less deprived than SL4 4DN:Food Standards Agency
Three nearest food hygiene ratings to SL4 4DN (metres)
➜ Get more ratings from the Food Standards Agency
Nearest post box to SL4 4DN
| Last Collection | |||
|---|---|---|---|
| Location | Mon-Fri | Sat | Distance |
| Hatch Lane | 17:30 | 11:45 | 646m |
| Clewer Hill Road | 17:30 | 11:45 | 796m |
| Cavalry Crescent | 16:45 | 11:30 | 1,286m |
SL4 4DN ITL and SL4 4DN 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 4DN:
| 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 4DN 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 4DN:
| Code | Name | |
|---|---|---|
| OA | E00083602 | |
| LSOA | E01016556 | Windsor and Maidenhead 014E |
| MSOA | E02003434 | Windsor and Maidenhead 014 |
Nearest postcodes to SL4 4DN
| SL4 4DW | Clewer Hill Road | 113m |
| SL4 4DP | Clewer Hill Road | 114m |
| SL4 4DJ | Manor Farm Close | 119m |
| SL4 4DQ | Clewer Hill Road | 124m |
| SL4 4HF | Rydings | 126m |
| SL4 4DS | Lodge Way | 135m |
| SL4 4DT | Park Corner | 156m |
| SL4 4HG | Rycroft | 162m |
| SL4 4DR | Park Corner | 163m |
| SL4 4HQ | Rycroft | 192m |
- 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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