According to data from HM Land Registry, 44, Pentwyn Avenue, Mountain Ash sits on a plot of 205 m².

We have plot size data on 41 out of 45 other houses in the postcode and 44, Pentwyn Avenue, Mountain Ash sits on the 14th largest plot.

44, Pentwyn Avenue, Mountain Ash has an Energy Performance Rating (EPC) of E. This is based on the most recent assessment, dated 27 Jan 2012.

The property is connected to mains gas and has partial double glazing. It is heated using a boiler and radiators (mains gas).

According to HM Land Registry, 44, Pentwyn Avenue, Mountain Ash was last sold on 7th September 2012 for £35,000 and was recorded as a freehold house.

The property has only had this single sale since 1995.

Since September 2012, the market for similar properties has risen by 211.1%.

• Sold Sep 2012£35,000

According to the Land Registry and our network of Estate Agents, there have been 47 sales of properties similar to 44, Pentwyn Avenue, Mountain Ash within a radius of 1.3 kilometres since 2010.

The most recent example is 25, Walsh Street, Mountain Ash, CF45 4YS, a freehold house which sold for £105,000 on the 19th February 2026.

Read more about house prices in CF45.

• Sold Feb 2026£105,000 | 3 Bed House25, Walsh Street, Mountain Ash, CF45 4YS25, Walsh Street, Mountain Ash, CF45 4YS
• Sold Mar 2025£144,000 | 4 Bed House17, Penrhiwceiber Road, Mountain Ash, CF45 3SP17, Penrhiwceiber Road, Mountain Ash, CF45 3SP
• Sold Jan 2024£125,000 | 3 Bed House65, Penrhiwceiber Road, Mountain Ash, CF45 3SN65, Penrhiwceiber Road, Mountain Ash, CF45 3SN
• Sold May 2023£130,000 | 4 Bed House14, Glasbrook Terrace, Mountain Ash, CF45 3SY14, Glasbrook Terrace, Mountain Ash, CF45 3SY
• Sold Oct 2022£80,000 | 4 Bed House52, Church Street, Mountain Ash, CF45 3YB52, Church Street, Mountain Ash, CF45 3YB
• Sold Oct 2022£98,000 | 3 Bed House49, Penrhiwceiber Road, Mountain Ash, CF45 3SN49, Penrhiwceiber Road, Mountain Ash, CF45 3SN
• Sold Nov 2021£88,500 | 3 Bed House10, Dillington Terrace, Mountain Ash, CF45 3NX10, Dillington Terrace, Mountain Ash, CF45 3NX
• Sold Sep 2021£115,000 | 4 Bed House2, Halswell Street, Mountain Ash, CF45 4YN2, Halswell Street, Mountain Ash, CF45 4YN
• Sold Apr 2021£98,000 | 3 Bed House66, Pentwyn Avenue, Mountain Ash, CF45 4YF66, Pentwyn Avenue, Mountain Ash, CF45 4YF
• Sold Oct 2020£63,000 | 4 Bed House7, Commercial Place, Mountain Ash, CF45 4YR7, Commercial Place, Mountain Ash, CF45 4YR
• Sold Oct 2020£90,000 | 3 Bed House5, Commercial Place, Mountain Ash, CF45 4YR5, Commercial Place, Mountain Ash, CF45 4YR
• Sold Mar 2019£100,000 | 4 Bed House3, Dillington Terrace, Mountain Ash, CF45 3NX3, Dillington Terrace, Mountain Ash, CF45 3NX
• Sold Nov 2018£60,000 | 4 Bed House4, Pentwyn Avenue, Mountain Ash, CF45 4YF4, Pentwyn Avenue, Mountain Ash, CF45 4YF
• Sold Oct 2018£295,000 | 4 Bed House1 Perthcelyn Cottages, Mountain Ash, CF45 3YJ1 Perthcelyn Cottages, Mountain Ash, CF45 3YJ
• Sold Mar 2018£45,000 | 4 Bed House58, Pentwyn Avenue, Mountain Ash, CF45 4YF58, Pentwyn Avenue, Mountain Ash, CF45 4YF
• Sold Nov 2017£87,000 | 3 Bed House10, Station Terrace, Mountain Ash, CF45 3SS10, Station Terrace, Mountain Ash, CF45 3SS
• Sold Jun 2015£51,000 | 4 Bed House50, Pentwyn Avenue, Mountain Ash, CF45 4YF50, Pentwyn Avenue, Mountain Ash, CF45 4YF
• Sold Dec 2014£55,000 | 4 Bed House18, Pentwyn Avenue, Mountain Ash, CF45 4YF18, Pentwyn Avenue, Mountain Ash, CF45 4YF
• Sold Feb 2013£87,000 | 3 Bed House2A, Rheola Street, Mountain Ash, CF45 3TA2A, Rheola Street, Mountain Ash, CF45 3TA
• Sold Aug 2010£65,000 | 3 Bed House17, Morris Avenue, Mountain Ash, CF45 3TW17, Morris Avenue, Mountain Ash, CF45 3TW

Pentwyn Avenue, Mountain Ash, CF45 has a total of 111 addresses. According to our analysis of all the public data, 44, Pentwyn Avenue, Mountain Ash is the 12th largest and the 9th most expensive property on the street.

When compared to the postcode district it is £34k less expensive than the average property in CF45.

• Penrhiwceiber

  |

  1.0 km away
• Quakers Yard

  |

  2.2 km away
• Mountain Ash

  |

  2.7 km away

According to data from the Environment Agency, the flood risk in this area is considered to be Very Low.