| Postcode | CF46 6JG | 
|---|---|
| Post Town | Treharris | 
| Nearest station | Abercynon (3 km) | 
| Bus stops | Co-op Car Park (N) Co-op (W) Bryncelyn Community Centre (SE) Bryncelyn Junction (E) Police Houses (N) Bryncelyn Junction (W) | 
| Roads in this postcode | |
| Number of UPRNs | 10 View | 
| Known addresses | 2 Heol Mabon, Nelson 4 Heol Mabon, Nelson 6 Heol Mabon, Nelson 8 Heol Mabon, Nelson 10 Heol Mabon, Nelson 12 Heol Mabon, Nelson 18 Heol Mabon, Nelson 20 Heol Mabon, Nelson | 
| Main property type | Detached | 
| Businesses | 
                        No businesses found
                     | 
| Latitude | 51.64885 | |
|---|---|---|
| Longitude | -3.290465 | |
| Easting | 310813 | |
| Northing | 195239 | |
| Grid reference | ST108952 | |
| UTM reference | 30U 479903 5722023 | |
| what3words | ironic.caramel.fuels | |
| FixPhrase | crinkle lurch smudge wasp | |
| Plus code | 9C3RJPX5+GR | |
| Altitude | 148 metres (487 feet) | |
| Sunrise (today) | 7:06 | |
| Sunset (today) | 16:49 | |
| Distance away | ||
| Distance to sea | 21.2 KMs (13.2 miles) | 
| Parish | Nelson | W04000739 | 
|---|---|---|
| Ward | Nelson | W05001665 | 
| Unitary Authority | Caerphilly | W06000018 | 
| County | Gwent | W11000003 | 
| Constituency (2024) | Caerphilly | W07000088 | 
| MP | Chris Evans | Labour | 
| Police force | Gwent | |
| Water company | Dwr Cymru Welsh Water | |
| NUTS/ITL 3 | Gwent Valleys | |
| NUTS/ITL 2 | South East Wales | |
| NUTS/ITL 1 | Wales | |
| Country | Wales | W92000004 | 
| Date introduced | January 1992 | 
|---|---|
| Last updated | September 2025 | 
| User type | Small (addresses receive less than 25 items of mail per day) | 
| Quality | Within the building of the matched address closest to the postcode mean | 
| Population (2011) | 24 | |
|---|---|---|
| Households (2011) | 10 | |
| Index of Multiple Deprivation (2019) | Most deprivedLeast deprived | |
| Average household income (2020) | Lowest (£22,200)
                        Highest (£108,100)
                       | |
| Rural/urban (2021) | Urban: Nearer to a major town or city | |
| Rural/urban (2011) | Urban city and town | |
| Built up area (2024) | Nelson (Caerphilly) | W45001116 | 
| Census output area (2021) | W00007213 | |
| Census output area (2011) | 6B3 | |
| Lower layer super output area (2021) | Caerphilly 013C | W01001379 | 
| Lower layer super output area (2011) | Caerphilly 013C | W01001379 | 
| Middle layer super output area (2021) | Ystrad Mynach & Nelson | W02000302 | 
| Middle layer super output area (2011) | Ystrad Mynach & Nelson | W02000302 | 
| Travel to work area | Cardiff | W22000024 | 
| Average property price in Cardiff | £221,509 | 
|---|---|
| Annual change | 2.2% | 
| Address | Type | Date | Price | 
|---|---|---|---|
| 4 Heol Mabon, Nelson | Semi-detached (freehold) | Feb 2025 | £206,000 | 
| 8 Heol Mabon, Nelson | Semi-detached (leasehold) | Apr 2014 | £108,000 | 
| Semi-detached (freehold) | Apr 2014 | £108,000 | |
| 6 Heol Mabon, Nelson | Semi-detached (leasehold) | Oct 2013 | £100,000 | 
| 10 Heol Mabon, Nelson | Detached (freehold) | May 2004 | £132,500 | 
| Detached (freehold) | Feb 2002 | £81,000 | |
| 2 Heol Mabon, Nelson | Semi-detached (leasehold) | Nov 1997 | £49,000 | 
| 12 Heol Mabon, Nelson | Detached (leasehold) | Oct 1997 | £59,500 | 
| 20 Heol Mabon, Nelson | New build detached (leasehold) | Sep 1995 | £57,490 | 
| 18 Heol Mabon, Nelson | New build detached (freehold) | Jun 1995 | £59,950 |