| Postcode | CF83 1HG | 
|---|---|
| Post Town | Caerphilly | 
| Nearest station | Caerphilly (0 km) | 
| Bus stops | Interchange Stand 10 () Interchange Stand 9 () Interchange Stand 8 () Interchange Stand 7 () Interchange Stand 6 () Interchange Stand 5 () | 
| Roads in this postcode | |
| Number of UPRNs | 10 View | 
| Known addresses | Police Station, Mountain Road, Caerphilly The Old Caerphilly Police Station, Mountain Road, Caerphilly 1 Mountain Road, Caerphilly 3 Mountain Road, Caerphilly 5 Mountain Road, Caerphilly 11 Mountain Road, Caerphilly 15 Mountain Road, Caerphilly 23 Mountain Road, Caerphilly | 
| Main property type | Detached | 
| Businesses | 
| Latitude | 51.569493 | |
|---|---|---|
| Longitude | -3.217412 | |
| Easting | 315720 | |
| Northing | 186327 | |
| Grid reference | ST157863 | |
| UTM reference | 30U 484931 5713180 | |
| what3words | fills.dogs.ready | |
| FixPhrase | cringing lurch starter unheated | |
| Plus code | 9C3RHQ9M+Q2 | |
| Altitude | 127 metres (415 feet) | |
| Sunrise (today) | 7:05 | |
| Sunset (today) | 16:49 | |
| Distance away | ||
| Distance to sea | 11.1 KMs (6.9 miles) | 
| Parish | Caerphilly | W04000904 | 
|---|---|---|
| Ward | St Martins | W05001674 | 
| 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 | 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) | 16 | |
|---|---|---|
| Households (2011) | 8 | |
| 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) | Caerphilly | W45001178 | 
| Census output area (2021) | W00007450 | |
| Census output area (2011) | 5B3 | |
| Lower layer super output area (2021) | Caerphilly 024D | W01001425 | 
| Lower layer super output area (2011) | Caerphilly 024D | W01001425 | 
| Middle layer super output area (2021) | Caerphilly South | W02000313 | 
| Middle layer super output area (2011) | Caerphilly South | W02000313 | 
| Travel to work area | Cardiff | W22000024 | 
| Average property price in Cardiff | £221,509 | 
|---|---|
| Annual change | 2.2% | 
| Address | Type | Date | Price | 
|---|---|---|---|
| 23 Mountain Road, Caerphilly | Detached (freehold) | Feb 2022 | £372,000 | 
| Detached (freehold) | Dec 2011 | £282,500 | |
| Detached (freehold) | Feb 2000 | £133,000 | |
| 15 Mountain Road, Caerphilly | Semi-detached (freehold) | Dec 2021 | £565,000 | 
| Semi-detached (freehold) | Sep 2011 | £385,000 | |
| Semi-detached (freehold) | Mar 2007 | £340,000 | |
| Semi-detached (freehold) | Dec 1999 | £157,000 | |
| The Old Caerphilly Police Station, Mountain Road, Caerphilly | Other (freehold) | Aug 2019 | £575,000 | 
| Police Station, Mountain Road, Caerphilly | Detached (freehold) | Mar 2014 | £350,000 | 
| 5 Mountain Road, Caerphilly | Detached (freehold) | Jun 2008 | £390,000 | 
| Detached (freehold) | Nov 1996 | £140,500 | |
| 1 Mountain Road, Caerphilly | Detached (freehold) | Feb 2007 | £180,000 | 
| 3 Mountain Road, Caerphilly | Detached (freehold) | Dec 2003 | £262,500 | 
| 11 Mountain Road, Caerphilly | Semi-detached (freehold) | Aug 1995 | £67,000 |