13, Clarence Street, Mountain Ash occupies a 145 m² plot as recorded by HM Land Registry.

Of the 36 other houses in this postcode, 32 have recorded plot sizes, and this one ranks as the 4th largest.

13, Clarence Street, Mountain Ash has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 27 Jun 2014.

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

13, Clarence Street, Mountain Ash last changed hands on 17th May 2012, selling for £40,000. 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 131.0% since May 2012.

• Sold May 2012£40,000

Land Registry records and our Estate Agent network show 211 sales of comparable properties within 550 metres of 13, Clarence Street, Mountain Ash since 2020.

Most recently, 70, Clarence Street, Mountain Ash, CF45 3BD, a freehold house, sold at £135,000 on the 20th March 2026.

Read more about house prices in CF45.

• Sold Mar 2026£135,000 | 3 Bed House70, Clarence Street, Mountain Ash, CF45 3BD70, Clarence Street, Mountain Ash, CF45 3BD
• Sold Dec 2025£130,000 | 3 Bed House11, Clarence Street, Mountain Ash, CF45 3BB11, Clarence Street, Mountain Ash, CF45 3BB
• Sold Oct 2025£112,000 | 3 Bed House32, Oakland Street, Mountain Ash, CF45 3AL32, Oakland Street, Mountain Ash, CF45 3AL
• Sold Sep 2025£130,000 | 3 Bed House14, Oakland Street, Mountain Ash, CF45 3AL14, Oakland Street, Mountain Ash, CF45 3AL
• 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 Jan 2025£95,000 | 3 Bed House47, Albert Street, Mountain Ash, CF45 3BA47, Albert Street, Mountain Ash, CF45 3BA
• Sold Jul 2024£126,000 | 3 Bed House45, Bailey Street, Mountain Ash, CF45 3AS45, Bailey Street, Mountain Ash, CF45 3AS
• Sold Jun 2024£115,000 | 3 Bed House64, Clarence Street, Mountain Ash, CF45 3BD64, Clarence Street, Mountain Ash, CF45 3BD
• Sold Jun 2023£42,000 | 3 Bed House67, Consort Street, Mountain Ash, CF45 3AU67, Consort Street, Mountain Ash, CF45 3AU
• Sold May 2023£85,000 | 3 Bed House43, Bailey Street, Mountain Ash, CF45 3AS43, Bailey Street, Mountain Ash, CF45 3AS
• Sold Oct 2022£80,000 | 3 Bed House31, Bailey Street, Mountain Ash, CF45 3AS31, Bailey Street, Mountain Ash, CF45 3AS
• Sold May 2022£75,000 | 3 Bed House39, Bailey Street, Mountain Ash, CF45 3AS39, Bailey Street, Mountain Ash, CF45 3AS
• Sold Mar 2022£100,000 | 3 Bed House32, Bailey Street, Mountain Ash, CF45 3AS32, Bailey Street, Mountain Ash, CF45 3AS
• Sold Oct 2021£90,000 | 3 Bed House36, Clarence Street, Mountain Ash, CF45 3BB36, Clarence Street, Mountain Ash, CF45 3BB
• Sold Oct 2021£102,000 | 3 Bed House65, Consort Street, Mountain Ash, CF45 3AU65, Consort Street, Mountain Ash, CF45 3AU
• Sold Aug 2021£78,000 | 3 Bed House11, Albert Street, Mountain Ash, CF45 3BA11, Albert Street, Mountain Ash, CF45 3BA
• Sold Jul 2021£100,000 | 3 Bed House52, Bailey Street, Mountain Ash, CF45 3AS52, Bailey Street, Mountain Ash, CF45 3AS
• Sold May 2021£65,000 | 3 Bed House61, Consort Street, Mountain Ash, CF45 3AU61, Consort Street, Mountain Ash, CF45 3AU
• Sold Aug 2020£65,000 | 3 Bed House28, Bailey Street, Mountain Ash, CF45 3AS28, Bailey Street, Mountain Ash, CF45 3AS

Our analysis of the public data ranks 13, Clarence Street, Mountain Ash as the 13th largest and the 18th most expensive of the 102 addresses on Clarence Street, Mountain Ash, CF45.

Against the CF45 postcode district average, it is £37k less expensive than the typical property.

• Mountain Ash

  |

  600 m away
• Penrhiwceiber

  |

  1.3 km away
• Fernhill

  |

  1.8 km away

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