45, Thomas Street, Mountain Ash has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 17 Jan 2020.

The property is 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 69 sales of comparable properties within 650 metres of 45, Thomas Street, Mountain Ash since 2017.

Most recently, 38, Harcourt Terrace, Mountain Ash, CF45 3SD, a freehold house, sold at £97,000 on the 12th January 2026.

Read more about house prices in CF45.

• Sold Jan 2026£97,000 | 3 Bed House38, Harcourt Terrace, Mountain Ash, CF45 3SD38, Harcourt Terrace, Mountain Ash, CF45 3SD
• Sold Aug 2025£50,000 | 3 Bed House47, Victoria Street, Mountain Ash, CF45 3AP47, Victoria Street, Mountain Ash, CF45 3AP
• Sold Jul 2025£95,000 | 3 Bed House38, Albert Street, Mountain Ash, CF45 3BA38, Albert Street, Mountain Ash, CF45 3BA
• Sold Jun 2025£66,000 | 3 Bed House40B, Glyngwyn Street, Mountain Ash, CF45 3AF40B, Glyngwyn Street, Mountain Ash, CF45 3AF
• Sold May 2025£101,000 | 3 Bed House40, Arthur Street, Mountain Ash, CF45 3BL40, Arthur Street, Mountain Ash, CF45 3BL
• Sold May 2025£103,000 | 3 Bed House15, Albany Street, Mountain Ash, CF45 3BE15, Albany Street, Mountain Ash, CF45 3BE
• Sold May 2025£119,000 | 3 Bed House74, Victoria Street, Mountain Ash, CF45 3AP74, Victoria Street, Mountain Ash, CF45 3AP
• Sold Apr 2025£72,000 | 3 Bed House16, Albert Street, Mountain Ash, CF45 3BA16, Albert Street, Mountain Ash, CF45 3BA
• Sold Feb 2025£92,750 | 3 Bed House19, Harcourt Terrace, Mountain Ash, CF45 3SD19, Harcourt Terrace, Mountain Ash, CF45 3SD
• Sold Sep 2024£81,000 | 3 Bed House34, Glyngwyn Street, Mountain Ash, CF45 3AF34, Glyngwyn Street, Mountain Ash, CF45 3AF
• Sold Jul 2024£105,000 | 3 Bed House14, Clarence Street, Mountain Ash, CF45 3BB14, Clarence Street, Mountain Ash, CF45 3BB
• Sold Jul 2024£108,000 | 3 Bed House41, Arthur Street, Mountain Ash, CF45 3BL41, Arthur Street, Mountain Ash, CF45 3BL
• Sold Mar 2023£150,000 | 3 Bed House35, Cilhaul Terrace, Mountain Ash, CF45 3ND35, Cilhaul Terrace, Mountain Ash, CF45 3ND
• Sold Feb 2022£95,000 | 3 Bed House28, Thomas Street, Mountain Ash, CF45 3BU28, Thomas Street, Mountain Ash, CF45 3BU
• Sold Jun 2021£70,000 | 3 Bed House2, Consort Street, Mountain Ash, CF45 3AY2, Consort Street, Mountain Ash, CF45 3AY
• Sold May 2021£87,000 | 3 Bed House8, Thomas Street, Mountain Ash, CF45 3BU8, Thomas Street, Mountain Ash, CF45 3BU
• Sold Sep 2019£750 | 3 Bed House9, King Street, Mountain Ash, CF45 3BW9, King Street, Mountain Ash, CF45 3BW
• Sold Mar 2019£50,000 | 3 Bed House11, Arthur Street, Mountain Ash, CF45 3BL11, Arthur Street, Mountain Ash, CF45 3BL
• Sold Jan 2018£43,000 | 3 Bed House39, Arthur Street, Mountain Ash, CF45 3BL39, Arthur Street, Mountain Ash, CF45 3BL
• Sold Oct 2017£45,000 | 3 Bed House41, Thomas Street, Mountain Ash, CF45 3BP41, Thomas Street, Mountain Ash, CF45 3BP

Our analysis of the public data ranks 45, Thomas Street, Mountain Ash as the 65th largest and the 66th most expensive of the 73 addresses on Thomas Street, Mountain Ash, CF45.

Against the CF45 postcode district average, it is £49k less expensive than the typical property.

• Mountain Ash

  |

  1.0 km away
• Penrhiwceiber

  |

  1.0 km away
• Fernhill

  |

  2.1 km away

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