SL4 3HN maps, stats, and open data

SL4 3HN lies on Alma Road in Windsor. SL4 3HN 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 3HN maps

SL4 3HN map - OS OpenMap – Local (Ordnance Survey)

SL4 3HN map - OS VectorMap District (Ordnance Survey)

GetTheData
Source: OS OpenMap – Local (Ordnance Survey)
Source: OS VectorMap District (Ordnance Survey)
Licence: Open Government Licence (requires attribution)

SL4 3HN geodata

Easting	496216
Northing	176692
Latitude	51.481012
Longitude	-0.615818

GetTheData
Source: Open Postcode Geo
Licence: Open Government Licence

Where is SL4 3HN?

Street	Alma Road
Town/City	Windsor
Country	England
Postcode District	SL4
➜ See where SL4 is on a map ➜ Where is Windsor?

GetTheData
Source: Land Registry Price Paid Data
Licence: Open Government Licence

SL4 3HN Elevation

Elevation or altitude of SL4 3HN 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.

GetTheData
Source: Open Postcode Elevation
Licence: Open Government Licence

Politics

Ward	Eton & Castle
Constituency	Windsor

GetTheData
Source: ONS Postcode Database
Licence: Open Government Licence

House Prices

Sales of detached houses in SL4 3HN

43C, ALMA ROAD, WINDSOR, SL4 3HN 2007 31 AUG £750,000
43C, ALMA ROAD, WINDSOR, SL4 3HN 2005 17 JUN £490,000
43C, ALMA ROAD, WINDSOR, SL4 3HN 1997 31 OCT £60,000

➜ Windsor house prices

GetTheData
Source: HM Land Registry Price Paid Data
Licence: Contains HM Land Registry data © Crown copyright and database right 2025. This data is licensed under the Open Government Licence v3.0.

Transport

Nearest bus stops to SL4 3HN

Alma Road (Clarence Road)	Windsor	120m
Alma Road (Clarence Road)	Windsor	136m
Vansittart Road (Clarence Road)	Windsor	201m
Arthur Road	Windsor	238m
Arthur Road	Windsor	244m

Nearest railway stations to SL4 3HN

Windsor & Eton Central Station	0.5km
Windsor & Eton Riverside Station	0.8km
Datchet Station	2.5km

GetTheData
Source: NaPTAN
Licence: Open Government Licence

Broadband

Broadband access in SL4 3HN (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	90.0%
Percentage of properties with Full Fibre Broadband	0.0%

Superfast Broadband is between 30Mbps and 300Mbps
Ultrafast Broadband is > 300Mbps

Broadband limitations in SL4 3HN (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%

GetTheData
Source: Ofcom
Licence: Ofcom Terms of Use (requires attribution)

SL4 3HN gas and electricity consumption

Estimated total energy consumption in SL4 3HN by fuel type, 2015.

Gas

Consumption (kWh)	118,852
Meter count	6
Mean (kWh/meter)	19,809
Median (kWh/meter)	20,468

Consumption: The estimated total energy consumption, in kWh, across all meters in SL4 3HN, for 2015.
Meter count: The total number of meters in SL4 3HN.
Mean: The mean average consumption per meter, in kWh.
Median: The median average consumption per meter, in kWh.

GetTheData
Source: Postcode level gas estimates: 2015 (experimental)
Source: Postcode level electricity estimates: 2015 (experimental)
Licence: Open Government Licence

Deprivation

17.4% of English postcodes are less deprived than SL4 3HN:

GetTheData
Source: ONS Postcode Database
Licence: Open Government Licence

Food Standards Agency

Three nearest food hygiene ratings to SL4 3HN (metres)

The Bexley Arms

Bexley Arms

135m

Driven Forward Community Fridge

Essence of Beauty And Spa

163m

Windsor Methodist Church

Alma Road

167m

➜ Get more ratings from the Food Standards Agency

GetTheData
Source: Food Standards Agency
Licence: FSA terms & conditions

Nearest post box to SL4 3HN

	Last Collection
Location	Mon-Fri	Sat	Distance
Alma Road	17:15	11:30	240m
Bachelors Acre	17:15	11:45	378m
Saint Marks Road	17:15	11:30	434m

GetTheData
Source: Dracos
Licence: Creative Commons Attribution-ShareAlike

Environment

Risk of SL4 3HN flooding from rivers and sea	Low
➜ SL4 3HN flood map

GetTheData
Source: Open Flood Risk by Postcode
Licence: Open Government Licence

SL4 3HN ITL and SL4 3HN 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 3HN:

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

GetTheData
Source: ONS Postcode Directory
Licence: Open Government Licence

SL4 3HN 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 3HN:

	Code	Name
OA	E00083529
LSOA	E01016547	Windsor and Maidenhead 012B
MSOA	E02003432	Windsor and Maidenhead 012

GetTheData
Source: ONS Postcode Directory
Licence: Open Government Licence

Nearest postcodes to SL4 3HN

SL4 3HL	Alma Road	33m
SL4 3HW	Alma Road	56m
SL4 5AH	Clarence Road	71m
SL4 3SL	Hunters Mews	75m
SL4 1TB	Christian Square	103m
SL4 5AQ	Clarence Road	104m
SL4 5BW	Clewer Fields	130m
SL4 5AX	Clarence Road	131m
SL4 5BX	Bexley Street	134m
SL4 5BP	Bexley Street	139m

GetTheData
Source: Open Postcode Geo; Land Registry Price Paid Data
Licence: Open Government Licence