51, Clarence Street, Mountain Ash occupies a 136 m² plot as recorded by HM Land Registry.

Of the 66 other houses in this postcode, 60 have recorded plot sizes, and this one ranks as the 41st largest.

51, Clarence Street, Mountain Ash has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 24 Jul 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).

51, Clarence Street, Mountain Ash last changed hands on 25th March 2004, selling for £49,450. The transaction was logged as a freehold house by HM Land Registry.

That is its only recorded sale since 1995.

• Sold Mar 2004£49,450

Land Registry records and our Estate Agent network show 257 sales of comparable properties within 580 metres of 51, Clarence Street, Mountain Ash since 2019.

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 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 Sep 2025£125,000 | 3 Bed House26, Albany Street, Mountain Ash, CF45 3BE26, Albany Street, Mountain Ash, CF45 3BE
• Sold Jun 2025£90,000 | 3 Bed House26, Mount Pleasant Terrace, Mountain Ash, CF45 3AN26, Mount Pleasant Terrace, Mountain Ash, CF45 3AN
• Sold Jun 2025£98,000 | 3 Bed House96, Clarence Street, Mountain Ash, CF45 3BD96, Clarence Street, Mountain Ash, CF45 3BD
• Sold Jan 2025£95,000 | 3 Bed House47, Albert Street, Mountain Ash, CF45 3BA47, Albert Street, Mountain Ash, CF45 3BA
• Sold Nov 2024£120,000 | 3 Bed House22, Albany Street, Mountain Ash, CF45 3BE22, Albany Street, Mountain Ash, CF45 3BE
• Sold Aug 2024£112,000 | 3 Bed House17, Consort Street, Mountain Ash, CF45 3AY17, Consort Street, Mountain Ash, CF45 3AY
• 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£72,500 | 3 Bed House53, Clarence Street, Mountain Ash, CF45 3BD53, Clarence Street, Mountain Ash, CF45 3BD
• Sold May 2022£88,000 | 3 Bed House44, Mount Pleasant Terrace, Mountain Ash, CF45 3AN44, Mount Pleasant Terrace, Mountain Ash, CF45 3AN
• Sold Feb 2022£130,000 | 3 Bed House32, Mount Pleasant Terrace, Mountain Ash, CF45 3AN32, Mount Pleasant Terrace, Mountain Ash, CF45 3AN
• Sold Aug 2021£78,000 | 3 Bed House11, Albert Street, Mountain Ash, CF45 3BA11, Albert Street, Mountain Ash, CF45 3BA
• Sold May 2021£65,000 | 3 Bed House61, Consort Street, Mountain Ash, CF45 3AU61, Consort Street, Mountain Ash, CF45 3AU
• Sold Mar 2021£84,950 | 3 Bed House27, Mount Pleasant Terrace, Mountain Ash, CF45 3AN27, Mount Pleasant Terrace, Mountain Ash, CF45 3AN
• Sold Oct 2019£92,000 | 3 Bed House35, Clarence Street, Mountain Ash, CF45 3BB35, Clarence Street, Mountain Ash, CF45 3BB

Our analysis of the public data ranks 51, Clarence Street, Mountain Ash as the 22nd largest and the 26th most expensive of the 102 addresses on Clarence Street, Mountain Ash, CF45.

Against the CF45 postcode district average, it is £41k less expensive than the typical property.

• Mountain Ash

  |

  700 m away
• Penrhiwceiber

  |

  1.2 km away
• Fernhill

  |

  1.9 km away

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