| Postcode | CF81 8JS | 
|---|---|
| Post Town | Bargoed | 
| Nearest station | Pengam (1 km) | 
| Bus stops | Gwerthonor Place (SE) Lewis School (NE) The Gwerthonor (NW) The Gwerthonor (SE) Mamgu Statue (NW) Cardiff Road (SW) | 
| Roads in this postcode | |
| Number of UPRNs | 33 View | 
| Known addresses | Beech Cottage, Gwerthonor Road, Gilfach Brynderi, Gwerthonor Road, Gilfach Glasfryn, Gwerthonor Road, Gilfach Oak Cottage, Gwerthonor Road, Gilfach Wordsley, Gwerthonor Road, Gilfach 19 Gwerthonor Road, Gilfach 23 Gwerthonor Road, Gilfach 24 Gwerthonor Road, Gilfach 25 Gwerthonor Road, Gilfach 26 Gwerthonor Road, Gilfach 27 Gwerthonor Road, Gilfach 29 Gwerthonor Road, Gilfach 31 Gwerthonor Road, Gilfach 32 Gwerthonor Road, Gilfach 34 Gwerthonor Road, Gilfach | 
| Main property type | Semi-detached | 
| Businesses | 
                        No businesses found
                     | 
| Latitude | 51.675282 | |
|---|---|---|
| Longitude | -3.226075 | |
| Easting | 315317 | |
| Northing | 198102 | |
| Grid reference | ST153981 | |
| UTM reference | 30U 484367 5724947 | |
| what3words | incomes.pots.play | |
| FixPhrase | crinkle lurch stinking twine | |
| Plus code | 9C3RMQGF+4H | |
| Altitude | 170 metres (559 feet) | |
| Sunrise (today) | 7:06 | |
| Sunset (today) | 16:49 | |
| Distance away | ||
| Distance to sea | 21.8 KMs (13.6 miles) | 
| Parish | Bargoed | W04000728 | 
|---|---|---|
| Ward | Gilfach | W05001658 | 
| Unitary Authority | Caerphilly | W06000018 | 
| County | Gwent | W11000003 | 
| Constituency (2024) | Blaenau Gwent and Rhymney | W07000084 | 
| MP | Nick Smith | 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 | July 1995 | 
|---|---|
| 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) | 64 | |
|---|---|---|
| Households (2011) | 27 | |
| Index of Multiple Deprivation (2019) | Most deprivedLeast deprived | |
| Average household income (2020) | Lowest (£22,200)
                        Highest (£108,100)
                       | |
| Rural/urban (2021) | Urban: Further from a major town or city | |
| Rural/urban (2011) | Urban city and town | |
| Built up area (2024) | Bargod | W45001083 | 
| Census output area (2021) | W00007132 | |
| Census output area (2011) | 8A1 | |
| Lower layer super output area (2021) | Caerphilly 003C | W01001362 | 
| Lower layer super output area (2011) | Caerphilly 003C | W01001362 | 
| Middle layer super output area (2021) | Aberbargoed & Gilfach | W02000292 | 
| Middle layer super output area (2011) | Aberbargoed & Gilfach | W02000292 | 
| Travel to work area | Cardiff | W22000024 | 
| Average property price in Cardiff | £221,509 | 
|---|---|
| Annual change | 2.2% | 
| Address | Type | Date | Price | 
|---|---|---|---|
| 26 Gwerthonor Road, Gilfach | Semi-detached (freehold) | Jun 2025 | £252,000 | 
| Semi-detached (freehold) | Mar 2017 | £162,000 | |
| Other (freehold) | Aug 2016 | £110,000 | |
| Brynderi, Gwerthonor Road, Gilfach | Semi-detached (freehold) | May 2024 | £260,000 | 
| Semi-detached (freehold) | Apr 2007 | £78,000 | |
| 27 Gwerthonor Road, Gilfach | Semi-detached (freehold) | Jun 2023 | £220,000 | 
| Semi-detached (freehold) | Feb 2007 | £155,000 | |
| Oak Cottage, Gwerthonor Road, Gilfach | Detached (freehold) | May 2023 | £150,000 | 
| Detached (freehold) | Feb 2022 | £150,000 | |
| Detached (freehold) | May 2018 | £105,000 | |
| Detached (freehold) | May 2005 | £65,000 | |
| 19 Gwerthonor Road, Gilfach | Semi-detached (freehold) | Mar 2023 | £155,000 | 
| 25 Gwerthonor Road, Gilfach | Semi-detached (freehold) | May 2019 | £175,000 | 
| Semi-detached (freehold) | Mar 2017 | £137,000 | |
| 29 Gwerthonor Road, Gilfach | Semi-detached (freehold) | Jul 2018 | £155,000 | 
| Beech Cottage, Gwerthonor Road, Gilfach | Terraced (freehold) | Apr 2018 | £100,000 | 
| 34 Gwerthonor Road, Gilfach | Semi-detached (freehold) | Sep 2017 | £210,000 | 
| Semi-detached (freehold) | Nov 2010 | £150,000 | |
| 23 Gwerthonor Road, Gilfach | Semi-detached (freehold) | Oct 2012 | £100,000 |