80, Pentwyn Avenue, Mountain Ash occupies a 113 m² plot as recorded by HM Land Registry.

Of the 45 other houses in this postcode, 41 have recorded plot sizes, and this one ranks as the 40th largest.

80, Pentwyn Avenue, Mountain Ash has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 23 Nov 2012.

The property is not connected to mains gas and has fully double glazed windows. It is heated using a boiler and radiators (mains gas).

80, Pentwyn Avenue, Mountain Ash last changed hands on 30th April 2014, selling for £50,000. The transaction was logged as a freehold house by HM Land Registry.

In total it has sold twice since 1995.

The market for similar properties has risen by 191.4% since April 2014.

• Sold Apr 2014£50,000
• Sold Mar 2012£30,000

Land Registry records and our Estate Agent network show 251 sales of comparable properties within 1.3 kilometres of 80, Pentwyn Avenue, Mountain Ash since 2014.

Most recently, 3, Glanlay Street, Mountain Ash, CF45 3TL, a freehold house, sold at £127,500 on the 20th March 2026.

Read more about house prices in CF45.

• Sold Mar 2026£127,500 | 3 Bed House3, Glanlay Street, Mountain Ash, CF45 3TL3, Glanlay Street, Mountain Ash, CF45 3TL
• Sold Dec 2025£82,950 | 3 Bed House96, Bryntirion, Mountain Ash, CF45 4EX96, Bryntirion, Mountain Ash, CF45 4EX
• Sold Nov 2025£80,000 | 3 Bed House14, Monmouth Street, Mountain Ash, CF45 3NJ14, Monmouth Street, Mountain Ash, CF45 3NJ
• Sold Nov 2025£155,000 | 3 Bed House60, Morris Avenue, Mountain Ash, CF45 3TW60, Morris Avenue, Mountain Ash, CF45 3TW
• Sold Sep 2025£75,000 | 3 Bed House7, Walsh Street, Mountain Ash, CF45 4YS7, Walsh Street, Mountain Ash, CF45 4YS
• Sold Jun 2025£59,000 | 3 Bed House2, Walsh Street, Mountain Ash, CF45 4YS2, Walsh Street, Mountain Ash, CF45 4YS
• Sold May 2025£117,500 | 3 Bed House24, Pentwyn Avenue, Mountain Ash, CF45 4YF24, Pentwyn Avenue, Mountain Ash, CF45 4YF
• Sold May 2025£98,000 | 3 Bed House1, Morris Avenue, Mountain Ash, CF45 3TW1, Morris Avenue, Mountain Ash, CF45 3TW
• Sold Apr 2025£123,000 | 3 Bed House21, Glamorgan Street, Mountain Ash, CF45 3HX21, Glamorgan Street, Mountain Ash, CF45 3HX
• Sold Mar 2025£82,500 | 3 Bed House3, Morris Avenue, Mountain Ash, CF45 3TW3, Morris Avenue, Mountain Ash, CF45 3TW
• Sold Nov 2024£80,000 | 3 Bed House60, Pentwyn Avenue, Mountain Ash, CF45 4YF60, Pentwyn Avenue, Mountain Ash, CF45 4YF
• Sold Oct 2024£115,000 | 3 Bed House74, Pentwyn Avenue, Mountain Ash, CF45 4YF74, Pentwyn Avenue, Mountain Ash, CF45 4YF
• Sold Sep 2024£105,000 | 3 Bed House35, Morris Avenue, Mountain Ash, CF45 3TW35, Morris Avenue, Mountain Ash, CF45 3TW
• Sold Mar 2024£57,000 | 3 Bed House12, Rheola Street, Mountain Ash, CF45 3TA12, Rheola Street, Mountain Ash, CF45 3TA
• Sold Nov 2023£105,000 | 3 Bed House24, Glamorgan Street, Mountain Ash, CF45 3HX24, Glamorgan Street, Mountain Ash, CF45 3HX
• Sold Jul 2023£85,000 | 3 Bed House1, Glamorgan Street, Mountain Ash, CF45 3HX1, Glamorgan Street, Mountain Ash, CF45 3HX
• Sold Aug 2022£90,000 | 3 Bed House17, Monmouth Street, Mountain Ash, CF45 3NJ17, Monmouth Street, Mountain Ash, CF45 3NJ
• Sold Sep 2020£30,000 | 3 Bed House52, Pentwyn Avenue, Mountain Ash, CF45 4YF52, Pentwyn Avenue, Mountain Ash, CF45 4YF
• Sold Sep 2019£45,000 | 3 Bed House88, Pentwyn Avenue, Mountain Ash, CF45 4YF88, Pentwyn Avenue, Mountain Ash, CF45 4YF
• Sold Feb 2014£42,500 | 3 Bed House82, Pentwyn Avenue, Mountain Ash, CF45 4YF82, Pentwyn Avenue, Mountain Ash, CF45 4YF

Our analysis of the public data ranks 80, Pentwyn Avenue, Mountain Ash as the 93rd largest and the 36th most expensive of the 111 addresses on Pentwyn Avenue, Mountain Ash, CF45.

Against the CF45 postcode district average, it is £56k less expensive than the typical property.

• Penrhiwceiber

  |

  1.0 km away
• Quakers Yard

  |

  2.2 km away
• Mountain Ash

  |

  2.7 km away

Environment Agency data suggests this area has a Very Low risk of flooding.