20, Harcourt Road, Mountain Ash occupies a 657 m² plot as recorded by HM Land Registry.

Of the 23 other houses in this postcode, 20 have recorded plot sizes, and this one ranks as the largest.

20, Harcourt Road, Mountain Ash has an Energy Performance Rating (EPC) of E. This is based on the most recent assessment, dated 27 Nov 2019.

The property is connected to mains gas and has fully double glazed windows. It is heated using a boiler and radiators (mains gas).

20, Harcourt Road, Mountain Ash last changed hands on 28th May 2021, selling for £100,000. The transaction was logged as a freehold house by HM Land Registry.

That is its only recorded sale since 1995.

The market for similar properties has risen by 56.0% since May 2021.

• Sold May 2021£100,000

Land Registry records and our Estate Agent network show 154 sales of comparable properties within 770 metres of 20, Harcourt Road, Mountain Ash since 2017.

Most recently, Aberpennar Cottage, Dover Street, Mountain Ash, CF45 3HY, a freehold house, sold at £142,500 on the 4th February 2026.

Read more about house prices in CF45.

• Sold Feb 2026£142,500 | 3 Bed HouseAberpennar Cottage, Dover Street, Mountain Ash, CF45 3HYAberpennar Cottage, Dover Street, Mountain Ash, CF45 3HY
• Sold Dec 2025£95,000 | 3 Bed House8, Woodland Terrace, Mountain Ash, CF45 3RF8, Woodland Terrace, Mountain Ash, CF45 3RF
• Sold Aug 2025£126,000 | 3 Bed House19, Beckett Street, Mountain Ash, CF45 4AW19, Beckett Street, Mountain Ash, CF45 4AW
• Sold Jul 2025£49,000 | 3 Bed House49, Commercial Street, Mountain Ash, CF45 3PS49, Commercial Street, Mountain Ash, CF45 3PS
• Sold Jun 2025£132,500 | 3 Bed House28, Kingcraft Street, Mountain Ash, CF45 3LT28, Kingcraft Street, Mountain Ash, CF45 3LT
• Sold Feb 2025£122,000 | 3 Bed House21, Darran Road, Mountain Ash, CF45 3HT21, Darran Road, Mountain Ash, CF45 3HT
• Sold Nov 2024£130,000 | 3 Bed House57, Woodland Street, Mountain Ash, CF45 3RE57, Woodland Street, Mountain Ash, CF45 3RE
• Sold Aug 2024£136,760 | 3 Bed House1, Lyle Street, Mountain Ash, CF45 3RG1, Lyle Street, Mountain Ash, CF45 3RG
• Sold Aug 2024£105,000 | 3 Bed House43, Aberpennar Street, Mountain Ash, CF45 3LS43, Aberpennar Street, Mountain Ash, CF45 3LS
• Sold Jul 2024£77,000 | 3 Bed House15, Lyle Street, Mountain Ash, CF45 3RG15, Lyle Street, Mountain Ash, CF45 3RG
• Sold Mar 2024£114,000 | 3 Bed House46, Aberpennar Street, Mountain Ash, CF45 3LS46, Aberpennar Street, Mountain Ash, CF45 3LS
• Sold Mar 2023£148,000 | 3 Bed House1, Cadwaladr Street, Mountain Ash, CF45 3RD1, Cadwaladr Street, Mountain Ash, CF45 3RD
• Sold Dec 2022£110,000 | 3 Bed House24, Lyle Street, Mountain Ash, CF45 3RG24, Lyle Street, Mountain Ash, CF45 3RG
• Sold Oct 2021£105,000 | 3 Bed House110, Woodland Street, Mountain Ash, CF45 3RB110, Woodland Street, Mountain Ash, CF45 3RB
• Sold Sep 2021£95,000 | 3 Bed House8, Lyle Street, Mountain Ash, CF45 3RG8, Lyle Street, Mountain Ash, CF45 3RG
• Sold Jun 2021£120,000 | 3 Bed House10, Duffryn Street, Mountain Ash, CF45 3NU10, Duffryn Street, Mountain Ash, CF45 3NU
• Sold Apr 2021£100,000 | 3 Bed House1 Green Bank Villas, Mountain Ash, CF45 3RA1 Green Bank Villas, Mountain Ash, CF45 3RA
• Sold Mar 2021£100,000 | 3 Bed House108, Woodland Street, Mountain Ash, CF45 3RB108, Woodland Street, Mountain Ash, CF45 3RB
• Sold Jun 2018£65,000 | 3 Bed House30, Woodland Terrace, Mountain Ash, CF45 3RF30, Woodland Terrace, Mountain Ash, CF45 3RF
• Sold Mar 2017£95,000 | 3 Bed House112, Woodland Street, Mountain Ash, CF45 3RB112, Woodland Street, Mountain Ash, CF45 3RB

Our analysis of the public data ranks 20, Harcourt Road, Mountain Ash as the 16th largest and the 23rd most expensive of the 23 addresses on Harcourt Road, Mountain Ash, CF45.

Against the CF45 postcode district average, it is £27k less expensive than the typical property.

• Fernhill

  |

  700 m away
• Mountain Ash

  |

  800 m away
• Penrhiwceiber

  |

  2.4 km away

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