3, James Street, Mountain Ash occupies a 135 m² plot as recorded by HM Land Registry.

All 17 other houses in this postcode have recorded plot sizes, and this one ranks as the 2nd largest.

3, James Street, Mountain Ash has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 05 Mar 2019.

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 72 sales of comparable properties within 600 metres of 3, James Street, Mountain Ash since 2019.

Most recently, 9, Clarence Street, Mountain Ash, CF45 3BB, a freehold house, sold at £130,000 on the 17th April 2026.

Read more about house prices in CF45.

• Sold Apr 2026£130,000 | 4 Bed House9, Clarence Street, Mountain Ash, CF45 3BB9, Clarence Street, Mountain Ash, CF45 3BB
• Sold Dec 2025£130,000 | 3 Bed House11, Clarence Street, Mountain Ash, CF45 3BB11, Clarence Street, Mountain Ash, CF45 3BB
• Sold Nov 2025£108,000 | 3 Bed House111, Woodfield Terrace, Mountain Ash, CF45 3UT111, Woodfield Terrace, Mountain Ash, CF45 3UT
• Sold Nov 2025£120,000 | 3 Bed House100, Woodfield Terrace, Mountain Ash, CF45 3UT100, Woodfield Terrace, Mountain Ash, CF45 3UT
• Sold Nov 2025£65,000 | 3 Bed House110, Woodfield Terrace, Mountain Ash, CF45 3UT110, Woodfield Terrace, Mountain Ash, CF45 3UT
• Sold Jun 2025£98,000 | 3 Bed House96, Clarence Street, Mountain Ash, CF45 3BD96, Clarence Street, Mountain Ash, CF45 3BD
• Sold Mar 2025£76,000 | 3 Bed House1, Glyngwyn Street, Mountain Ash, CF45 3AF1, Glyngwyn Street, Mountain Ash, CF45 3AF
• Sold Apr 2024£117,000 | 3 Bed HouseGlanffrwd Villa, Woodfield Terrace, Mountain Ash, CF45 3UTGlanffrwd Villa, Woodfield Terrace, Mountain Ash, CF45 3UT
• Sold Jun 2023£147,500 | 3 Bed HouseBryncerdyn Villa, Woodfield Terrace, Mountain Ash, CF45 3UTBryncerdyn Villa, Woodfield Terrace, Mountain Ash, CF45 3UT
• Sold May 2023£115,000 | 3 Bed House40, Oakland Street, Mountain Ash, CF45 3AL40, Oakland Street, Mountain Ash, CF45 3AL
• Sold Dec 2022£95,000 | 4 Bed House72, Consort Street, Mountain Ash, CF45 3AU72, Consort Street, Mountain Ash, CF45 3AU
• Sold Sep 2022£136,500 | 3 Bed HouseGlyntaf Villa, Woodfield Terrace, Mountain Ash, CF45 3UTGlyntaf Villa, Woodfield Terrace, Mountain Ash, CF45 3UT
• Sold Jun 2022£92,000 | 3 Bed House23, Arthur Street, Mountain Ash, CF45 3BL23, Arthur Street, Mountain Ash, CF45 3BL
• Sold Dec 2021£90,000 | 3 Bed House7 Navigation Villas, Mountain Ash, CF45 3AG7 Navigation Villas, Mountain Ash, CF45 3AG
• Sold Oct 2021£105,000 | 3 Bed House16, Consort Street, Mountain Ash, CF45 3AY16, Consort Street, Mountain Ash, CF45 3AY
• Sold Oct 2021£102,000 | 3 Bed House65, Consort Street, Mountain Ash, CF45 3AU65, Consort Street, Mountain Ash, CF45 3AU
• Sold Sep 2021£99,000 | 3 Bed House5, Harcourt Terrace, Mountain Ash, CF45 3SD5, Harcourt Terrace, Mountain Ash, CF45 3SD
• Sold Jul 2021£105,000 | 4 Bed House23, Mount Pleasant Terrace, Mountain Ash, CF45 3AN23, Mount Pleasant Terrace, Mountain Ash, CF45 3AN
• Sold Dec 2020£91,995 | 3 Bed House4, Jones Street, Mountain Ash, CF45 3UL4, Jones Street, Mountain Ash, CF45 3UL
• Sold May 2019£90,000 | 4 Bed House2, Hughes Street, Mountain Ash, CF45 3UG2, Hughes Street, Mountain Ash, CF45 3UG

Our analysis of the public data ranks 3, James Street, Mountain Ash as the largest and the most expensive of the 17 addresses on James Street, Mountain Ash, CF45.

Against the CF45 postcode district average, it is £39k less expensive than the typical property.

• Mountain Ash

  |

  800 m away
• Penrhiwceiber

  |

  900 m away
• Fernhill

  |

  2.1 km away

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