| Postcode | CF45 3LS | 
|---|---|
| Post Town | Mountain Ash | 
| Nearest station | Mountain Ash (0 km) | 
| Bus stops | Darrenlas Primary School (N) Darrenlas Primary School (S) Napier Arms (S) Primrose Hill (NE) Primrose Hill (SW) Olde Royal Oak (NW) | 
| Roads in this postcode | |
| Number of UPRNs | 53 View | 
| Known addresses | 1 Aberpennar Street, Mountain Ash 2 Aberpennar Street, Mountain Ash 8 Aberpennar Street, Mountain Ash 9 Aberpennar Street, Mountain Ash 11 Aberpennar Street, Mountain Ash 12 Aberpennar Street, Mountain Ash 13 Aberpennar Street, Mountain Ash 14 Aberpennar Street, Mountain Ash 17 Aberpennar Street, Mountain Ash 18 Aberpennar Street, Mountain Ash 19 Aberpennar Street, Mountain Ash 20 Aberpennar Street, Mountain Ash 24 Aberpennar Street, Mountain Ash 25 Aberpennar Street, Mountain Ash 26 Aberpennar Street, Mountain Ash 28 Aberpennar Street, Mountain Ash 30 Aberpennar Street, Mountain Ash 32 Aberpennar Street, Mountain Ash 37 Aberpennar Street, Mountain Ash 38 Aberpennar Street, Mountain Ash 40 Aberpennar Street, Mountain Ash 42 Aberpennar Street, Mountain Ash 43 Aberpennar Street, Mountain Ash 45 Aberpennar Street, Mountain Ash 46 Aberpennar Street, Mountain Ash 47 Aberpennar Street, Mountain Ash 48 Aberpennar Street, Mountain Ash 50 Aberpennar Street, Mountain Ash | 
| Main property type | Terraced | 
| Businesses | 
                        No businesses found
                     | 
| Latitude | 51.6793 | |
|---|---|---|
| Longitude | -3.38186 | |
| Easting | 304554 | |
| Northing | 198742 | |
| Grid reference | ST045987 | |
| UTM reference | 30U 473598 5725439 | |
| what3words | flannel.slyly.honest | |
| FixPhrase | crinkle lung stowaway unblock | |
| Plus code | 9C3RMJH9+P7 | |
| Altitude | 168 metres (552 feet) | |
| Sunrise (today) | 7:06 | |
| Sunset (today) | 16:49 | |
| Distance away | ||
| Distance to sea | 27.7 KMs (17.2 miles) | 
| Parish | Mountain Ash West | W04001017 | 
|---|---|---|
| Ward | Mountain Ash | W05001092 | 
| Unitary Authority | Rhondda Cynon Taf | W06000016 | 
| County | Mid Glamorgan | W11000005 | 
| Constituency (2024) | Pontypridd | W07000106 | 
| MP | Alex Davies-Jones | Labour | 
| Police force | South Wales | |
| Water company | Dwr Cymru Welsh Water | |
| NUTS/ITL 3 | Central Valleys and Bridgend | |
| NUTS/ITL 2 | South East Wales | |
| NUTS/ITL 1 | Wales | |
| Country | Wales | W92000004 | 
| Date introduced | January 1980 | 
|---|---|
| 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) | 147 | |
|---|---|---|
| Households (2011) | 51 | |
| 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) | Mountain Ash | W45001094 | 
| Census output area (2021) | W00006349 | |
| Census output area (2011) | 8B1 | |
| Lower layer super output area (2021) | Rhondda Cynon Taf 006C | W01001206 | 
| Lower layer super output area (2011) | Rhondda Cynon Taf 006C | W01001206 | 
| Middle layer super output area (2021) | Mountain Ash | W02000257 | 
| Middle layer super output area (2011) | Mountain Ash | W02000257 | 
| Travel to work area | Merthyr Tydfil | W22000029 | 
| Average property price in Cardiff | £221,509 | 
|---|---|
| Annual change | 2.2% | 
| Address | Type | Date | Price | 
|---|---|---|---|
| 43 Aberpennar Street, Mountain Ash | Terraced (freehold) | Aug 2024 | £105,000 | 
| 47 Aberpennar Street, Mountain Ash | Terraced (freehold) | Apr 2024 | £110,000 | 
| Terraced (freehold) | Aug 2021 | £100,000 | |
| 46 Aberpennar Street, Mountain Ash | Terraced (freehold) | Mar 2024 | £114,000 | 
| 1 Aberpennar Street, Mountain Ash | Terraced (freehold) | Apr 2023 | £140,000 | 
| 19 Aberpennar Street, Mountain Ash | Terraced (freehold) | Apr 2022 | £145,000 | 
| Terraced (freehold) | May 2019 | £115,000 | |
| Terraced (freehold) | Aug 2001 | £22,000 | |
| 17 Aberpennar Street, Mountain Ash | Terraced (freehold) | Sep 2021 | £129,950 | 
| 2 Aberpennar Street, Mountain Ash | Terraced (freehold) | Mar 2020 | £87,500 | 
| 28 Aberpennar Street, Mountain Ash | Terraced (freehold) | Feb 2020 | £80,500 | 
| Terraced (freehold) | May 2000 | £35,500 | |
| Terraced (freehold) | Feb 2000 | £34,000 | |
| 38 Aberpennar Street, Mountain Ash | Terraced (freehold) | Oct 2019 | £113,500 | 
| 25 Aberpennar Street, Mountain Ash | Terraced (freehold) | Jul 2017 | £111,000 | 
| Terraced (freehold) | Jun 2012 | £82,000 | |
| Terraced (freehold) | Apr 1999 | £39,000 |