129, Bryntirion, Mountain Ash occupies a 235 m² plot as recorded by HM Land Registry.

All 71 other houses in this postcode have recorded plot sizes, and this one ranks as the 20th largest.

129, Bryntirion, Mountain Ash has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 02 Jul 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).

Land Registry records and our Estate Agent network show 136 sales of comparable properties within 1.5 kilometres of 129, Bryntirion, Mountain Ash since 2014.

Most recently, 96, Bryntirion, Mountain Ash, CF45 4EX, a freehold house, sold at £82,950 on the 10th December 2025.

Read more about house prices in CF45.

• Sold Dec 2025£82,950 | 3 Bed House96, Bryntirion, Mountain Ash, CF45 4EX96, Bryntirion, Mountain Ash, CF45 4EX
• Sold Nov 2025£88,000 | 3 Bed House134, Bryntirion, Mountain Ash, CF45 4EX134, Bryntirion, Mountain Ash, CF45 4EX
• Sold Sep 2025£75,000 | 3 Bed House7, Walsh Street, Mountain Ash, CF45 4YS7, Walsh Street, Mountain Ash, CF45 4YS
• Sold Aug 2025£83,000 | 3 Bed House90, Bryntirion, Mountain Ash, CF45 4EX90, Bryntirion, Mountain Ash, CF45 4EX
• Sold Jun 2025£59,000 | 3 Bed House2, Walsh Street, Mountain Ash, CF45 4YS2, Walsh Street, Mountain Ash, CF45 4YS
• Sold May 2025£86,000 | 3 Bed House179, Bryntirion, Mountain Ash, CF45 4PJ179, Bryntirion, Mountain Ash, CF45 4PJ
• Sold Jun 2024£65,000 | 3 Bed House3, Homerton Street, Mountain Ash, CF45 4YP3, Homerton Street, Mountain Ash, CF45 4YP
• Sold Apr 2024£80,000 | 3 Bed House199, Bryntirion, Mountain Ash, CF45 4PJ199, Bryntirion, Mountain Ash, CF45 4PJ
• Sold Oct 2022£114,995 | 3 Bed House133, Bryntirion, Mountain Ash, CF45 4EX133, Bryntirion, Mountain Ash, CF45 4EX
• Sold Jul 2022£105,000 | 3 Bed House13, Walsh Street, Mountain Ash, CF45 4YS13, Walsh Street, Mountain Ash, CF45 4YS
• Sold Mar 2022£70,000 | 3 Bed House222, Bryntirion, Mountain Ash, CF45 4EJ222, Bryntirion, Mountain Ash, CF45 4EJ
• Sold Mar 2021£57,500 | 3 Bed House70, Bryntirion, Mountain Ash, CF45 4EX70, Bryntirion, Mountain Ash, CF45 4EX
• Sold Mar 2020£40,000 | 3 Bed House105, Bryntirion, Mountain Ash, CF45 4EX105, Bryntirion, Mountain Ash, CF45 4EX
• Sold Aug 2019£72,000 | 3 Bed House131, Bryntirion, Mountain Ash, CF45 4EX131, Bryntirion, Mountain Ash, CF45 4EX
• Sold Aug 2019£39,995 | 3 Bed House154, Bryntirion, Mountain Ash, CF45 4PJ154, Bryntirion, Mountain Ash, CF45 4PJ
• Sold Feb 2019£30,000 | 3 Bed House1, Pentwyn Avenue, Mountain Ash, CF45 4YE1, Pentwyn Avenue, Mountain Ash, CF45 4YE
• Sold Aug 2018£58,000 | 3 Bed House224, Bryntirion, Mountain Ash, CF45 4EJ224, Bryntirion, Mountain Ash, CF45 4EJ
• Sold Jul 2018£48,000 | 3 Bed House113, Bryntirion, Mountain Ash, CF45 4EX113, Bryntirion, Mountain Ash, CF45 4EX
• Sold Aug 2017£60,000 | 3 Bed House206, Bryntirion, Mountain Ash, CF45 4EJ206, Bryntirion, Mountain Ash, CF45 4EJ
• Sold Apr 2014£43,100 | 3 Bed House132, Bryntirion, Mountain Ash, CF45 4EX132, Bryntirion, Mountain Ash, CF45 4EX

Our analysis of the public data ranks 129, Bryntirion, Mountain Ash as the 22nd largest and the 26th most expensive of the 228 addresses on Bryntirion, Ynysboeth, Mountain Ash, CF45.

Against the CF45 postcode district average, it is £67k less expensive than the typical property.

• Penrhiwceiber

  |

  1.2 km away
• Quakers Yard

  |

  2.0 km away
• Abercynon

  |

  2.5 km away

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