SA3 4RB maps, stats, and open data
SA3 4RB lies on Marytwill Lane in Mumbles, Swansea. SA3 4RB is located in the Mumbles electoral ward, within the unitary authority of Swansea and the Welsh Parliamentary constituency of Gower. The Local Health Board is Swansea Bay University and the police force is South Wales. This postcode has been in use since January 1980.
SA3 4RB maps
Source: OS VectorMap District (Ordnance Survey)
Licence: Open Government Licence (requires attribution)
SA3 4RB geodata
| Easting | 260251 |
| Northing | 187734 |
| Latitude | 51.571106 |
| Longitude | -4.017874 |
Where is SA3 4RB?
| Street | Marytwill Lane |
| Locality | Mumbles |
| Town/City | Swansea |
| Country | Wales |
| Postcode District | SA3 |
SA3 4RB Elevation
Elevation or altitude of SA3 4RB as distance above sea level:
| Metres | Feet | |
|---|---|---|
| Elevation | 70m | 230ft |
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 | Mumbles |
|---|---|
| Constituency | Gower |
House Prices
Sales of detached houses in SA3 4RB
17, MARY TWILL LANE, MUMBLES, SWANSEA, SA3 4RB 2020 28 MAY £1,460,000 |
15, MARY TWILL LANE, MUMBLES, SWANSEA, SA3 4RB 2014 27 MAR £730,000 |
15A, LESLIE YOXALL DRIVE, MUMBLES, SWANSEA, SA3 4RB 2013 25 JUN £710,000 |
9, MARYTWILL LANE, MUMBLES, SWANSEA, SA3 4RB 2007 12 DEC £872,000 |
31, MARYTWILL LANE, MUMBLES, SWANSEA, SA3 4RB 2006 7 APR £360,000 |
11, MARYTWILL LANE, MUMBLES, SWANSEA, SA3 4RB 2001 17 AUG £450,000 |
4, MARYTWILL LANE, MUMBLES, SWANSEA, SA3 4RB 1996 15 FEB £165,000 |
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 SA3 4RB
| Caswell Avenue (Caswell Road) | Newton | 139m |
| Caswell Avenue (Caswell Road) | Newton | 154m |
| Caswell Road | Newton | 205m |
| Caswell Road | Langland Bay | 213m |
| Hillgrove (Caswell Road) | Newton | 243m |
Broadband
Broadband access in SA3 4RB (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 | 31.6% |
| Percentage of properties with Full Fibre Broadband | 0.0% |
Superfast Broadband is between 30Mbps and 300Mbps
Ultrafast Broadband is > 300Mbps
Broadband speed in SA3 4RB (2019 data)
Download
| Median download speed | 60.0Mbps |
| Average download speed | 53.7Mbps |
| Maximum download speed | 159.78Mbps |
Upload
| Median upload speed | 13.8Mbps |
| Average upload speed | 12.2Mbps |
| Maximum upload speed | 30.02Mbps |
Broadband limitations in SA3 4RB (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% |
SA3 4RB gas and electricity consumption
Estimated total energy consumption in SA3 4RB by fuel type, 2015.
Gas
| Consumption (kWh) | 555,115 |
|---|---|
| Meter count | 16 |
| Mean (kWh/meter) | 34,695 |
| Median (kWh/meter) | 35,009 |
Electricity
| Consumption (kWh) | 93,691 |
|---|---|
| Meter count | 17 |
| Mean (kWh/meter) | 5,511 |
| Median (kWh/meter) | 5,055 |
- Consumption: The estimated total energy consumption, in kWh, across all meters in SA3 4RB, for 2015.
- Meter count: The total number of meters in SA3 4RB.
- 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
4.5% of Welsh postcodes are less deprived than SA3 4RB:Food Standards Agency
Three nearest food hygiene ratings to SA3 4RB (metres)
➜ Get more ratings from the Food Standards Agency
Nearest post box to SA3 4RB
| Last Collection | |||
|---|---|---|---|
| Location | Mon-Fri | Sat | Distance |
| Newton P O | 17:45 | 11:30 | 481m |
| Highmead Av | 17:45 | 13:00 | 738m |
| Mumbles P O | 18:30 | 12:30 | 1,422m |
SA3 4RB ITL and SA3 4RB 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 SA3 4RB:
| ITL 1 Code | Name |
|---|---|
| TLL | Wales |
| ITL 2 Code | Name |
| TLL1 | West Wales and The Valleys |
| ITL 3 Code | Name |
| TLL18 | Swansea |
| LAU 1 Code | Name |
| W06000011 | Swansea |
SA3 4RB 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 SA3 4RB:
| Code | Name | |
|---|---|---|
| OA | W00004410 | |
| LSOA | W01000824 | Swansea 031B |
| MSOA | W02000198 | Swansea 031 |
Nearest postcodes to SA3 4RB
| SA3 4SF | Langland Grove | 130m |
| SA3 4RD | Llwyn Y Mor | 134m |
| SA3 4SX | Brynfield Road | 174m |
| SA3 4SD | Caswell Road | 183m |
| SA3 4SY | Whiteshell Drive | 191m |
| SA3 4RQ | Hillgrove | 201m |
| SA3 4SZ | Linkside | 203m |
| SA3 4SJ | Nottage Mews | 212m |
| SA3 4TB | Langland Court Road | 253m |
| SA3 4RA | Caswell Road | 256m |
- 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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