SA4 6UJ Swansea
Live postcode, introduced December 2001. Ward: Llwchwr.
Streets
- Cae Castell, Casllwchwr / Loughor: 84 addresses
- Unnamed street near Cae Castell, Casllwchwr: 1 address
- Unnamed street near Cae Castell, Casllwchwr: 1 address
Council tax
What each band costs in Swansea in 2026-27: Band D £2,238 a year on average, including the police and community council charges.
| A | B | C | D | E | F | G | H | I |
|---|---|---|---|---|---|---|---|---|
| £1,492 | £1,741 | £1,990 | £2,238 | £2,736 | £3,233 | £3,730 | £4,477 | £5,223 |
Homes by band in the neighbourhood around this postcode: most are in band A (26% of about 1,050 homes).
Planning and heritage
- Conservation area: no postcode centre in this postcode is in one.
- Listed buildings within 100 m of this postcode: none.
- Article 4 directions, tree preservation orders and green belt: Wales has no national record of these; the council's planning department holds them.
Flood risk
Rivers, the sea or surface water: of the 86 address points in this postcode, 0 at high risk, 0 at medium risk and 7 at low risk. Each counts once, at the higher of its rivers-and-sea and surface-water risk.
Rivers and the sea alone: none is in an area at risk. Surface water and small watercourses alone: 0 at high risk, 0 at medium risk and 7 at low risk.
High: 3.3% (1 in 30) or more chance of flooding a year. Medium: 1% to 3.3%. Low: 0.1% to 1%. The map allows for flood defences. Address points are every property record (UPRN) in the postcode, each counted if it is in an area or within 5 m of one (the maps stop at building walls); a few are not homes, such as garages, business units or caravan pitches. Counts cover whole postcodes, which can include other streets.
Flood zone for planning: no postcode centre is in flood zone 2 or 3. Welsh zones include an allowance for climate change.
Height above sea level
The postcode's 86 addresses are between 6 m and 12 m above sea level (8 m on average).
Broadband
Superfast 100%, ultrafast 100%, gigabit 100% of premises; 0% cannot get 10 Mbit/s. Ofcom Connected Nations, data as at January 2026.
Getting around
| Nearest | Distance | |
|---|---|---|
| Railway stations | Bynea 2,720 journeys in 2024–25 | 2.3 km |
| Gowerton 159,000 journeys in 2024–25 | 2.7 km | |
| Llangennech 4,320 journeys in 2024–25 | 3.4 km | |
| Bus stops | 9 stops within 400 m, 19 within 800 m; nearest Cae Castell Loughor | 100 m |
| Bus or coach station | Gorseinon Bus Station Stand 6 | 2.1 km |
| Ferry terminal | Swansea Queens Dock Ferry Terminal Swansea Ferry Terminal | 11.3 km |
| Car parks | Sainsbury's Gorseinon Car Park | 2.2 km |
| EV charging points | Osprey Charging Station | 4.6 km |
| Airport with scheduled flights | Cardiff International Airport CWL | 58.4 km |
Local services
| Nearest | Distance | |
|---|---|---|
| GP surgeries | Princess Street Surgery | 2.0 km |
| Pharmacies | Well | 1.8 km |
| NHS dentists | Alexandra Road (Dental Surgery) | 1.7 km |
| Hospital | Gorseinon Hospital | 1.9 km |
| Police station | Gorseinon Police Station | 2.2 km |
| Cash machines | Moto - Swansea - Amenity, Penllergaer | 1.8 km |
Parks and green space
| Nearest | Distance | |
|---|---|---|
| Park or garden | Unnamed 2,220 m² | 930 m |
| Play area | 2 within 800 m; nearest Unnamed 560 m² | 410 m |
| Playing field | 1 within 800 m; nearest Unnamed 4.3 ha | 160 m |
| Allotments | Unnamed 2,800 m² | 1.5 km |
Landmarks
The nearest historic landmark is Loughor Castle, a scheduled monument, 510 m west. 6 listed buildings are within 1.0 km.
| Name | What it is | From the postcode's centre |
|---|---|---|
| Loughor Castle | Scheduled monument | 510 m west |
| Pencoed Lead Works | Scheduled monument | 1.9 km north-west |
| Name | What it is | From the postcode's centre |
|---|---|---|
| Allt-wen Wood | Wood | 1.8 km south-east |
| Cwm y Lladron | Valley | 3.1 km east |
| Pen-y-wern Wood | Wood | 3.3 km south |
| Millennium Coastal Park | Wood | 3.4 km west |
| Bishwell Common | Wood | 3.6 km south-east |
| Priors Meadow | Wood | 4.3 km south |
Air quality
| Pollutant | Here | UK limit | WHO guideline |
|---|---|---|---|
| Nitrogen dioxide (NO2) | 4.1 | 40 | 10 |
| Fine particles (PM2.5) | 4.3 | 20 | 5 |
| Particles (PM10) | 6.6 | 40 | 15 |
All three are within both the UK limits and the WHO guidelines.
Road and rail noise
| Level | Road traffic | Railways |
|---|---|---|
| 65 to 69 | 7 | 0 |
| 60 to 64 | 5 | 0 |
| 55 to 59 | 20 | 10 |
| Under 55 | 54 | 76 |
32 of the postcode's 86 addresses are modelled at 55 dB or more from road traffic, and 10 at 55 dB or more from railways, above the WHO guidelines.
People and work
Who lives here
| Around this postcode | Wales | |
|---|---|---|
| Median age | 39 | 43 |
| Children under 15 | 21% | 17% |
| Aged 65 and over | 13% | 21% |
Homes
| Around this postcode | Wales | |
|---|---|---|
| Owned (outright or with a mortgage) | 80% | 66% |
| Owned outright | 36% | 38% |
| Shared ownership | 0% | under 1% |
| Social rented | 8% | 17% |
| Private rented | 12% | 17% |
Work and commuting
| Around this postcode | Wales | |
|---|---|---|
| Adults (16 and over) in work | 67% | 54% |
| Unemployment (of those working or looking for work) | 3% | 6% |
| Retired (of adults) | 18% | 25% |
| Long-term sick or disabled (of adults) | 4% | 6% |
| Work mainly from home (of those in work) | 19% | 26% |
| Travel to work by car or van | 75% | 61% |
| By train, Underground, metro or tram | under 1% | under 1% |
| By any public transport, including bus | 1% | 3% |
| On foot or by bicycle | 3% | 8% |
| Work within 10 km of home (of those who travel to work) | 67% | 60% |
| Work 30 km or more away | 8% | 10% |
Education and languages
| Around this postcode | Wales | |
|---|---|---|
| Degree or other higher qualification, Level 4+ (of adults) | 39% | 32% |
| No qualifications | 10% | 20% |
| Apprenticeship as highest qualification | 6% | 6% |
| Main language English or Welsh (aged 3 and over) | 99% | 97% |
| Cannot speak English well or at all | under 1% | under 1% |
Deprivation
The neighbourhood around this postcode is in decile 5 of 10 on the Welsh Index of Multiple Deprivation 2025, where 1 is the most deprived tenth of Wales's 1,917 neighbourhoods and 10 the least.
The full dossier for this postcode's main street is on Cae Castell.