HM Land Registry records the plot of land for 10, Clarence Street, Mountain Ash as measuring 139 m².

That makes it the 14th largest plot in the postcode, where 32 of the 36 other houses have recorded plot data.

10, Clarence Street, Mountain Ash has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 06 Nov 2013.

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

The most recent sale of 10, Clarence Street, Mountain Ash completed on 25th May 2012 at £56,000 and was recorded by HM Land Registry as a freehold house.

Since 1995 this is the property's only sale.

Values of comparable properties have risen by 131.0% over the period since May 2012.

• Sold May 2012£56,000

Since 2021 264 properties similar to 10, Clarence Street, Mountain Ash have sold within a radius of 560 metres, per the Land Registry and our network of Estate Agents.

The latest, on the 20th March 2026, was 70, Clarence Street, Mountain Ash, CF45 3BD, a freehold house which sold for £135,000.

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 Nov 2025£122,000 | 3 Bed House13, Hughes Street, Mountain Ash, CF45 3UG13, Hughes Street, Mountain Ash, CF45 3UG
• Sold Jun 2025£90,000 | 3 Bed House26, Mount Pleasant Terrace, Mountain Ash, CF45 3AN26, Mount Pleasant Terrace, Mountain Ash, CF45 3AN
• Sold Apr 2025£72,000 | 3 Bed House16, Albert Street, Mountain Ash, CF45 3BA16, Albert Street, Mountain Ash, CF45 3BA
• Sold Mar 2025£110,000 | 3 Bed House36, Glyngwyn Street, Mountain Ash, CF45 3AF36, Glyngwyn Street, Mountain Ash, CF45 3AF
• 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 Jul 2024£105,000 | 3 Bed House14, Clarence Street, Mountain Ash, CF45 3BB14, Clarence Street, Mountain Ash, CF45 3BB
• Sold Jun 2024£115,000 | 3 Bed House64, Clarence Street, Mountain Ash, CF45 3BD64, Clarence Street, Mountain Ash, CF45 3BD
• Sold Sep 2023£120,000 | 3 Bed House9, Albert Street, Mountain Ash, CF45 3BA9, Albert Street, Mountain Ash, CF45 3BA
• Sold Jun 2023£42,000 | 3 Bed House67, Consort Street, Mountain Ash, CF45 3AU67, Consort Street, Mountain Ash, CF45 3AU
• Sold Oct 2022£82,500 | 3 Bed House15, Clarence Street, Mountain Ash, CF45 3BB15, Clarence Street, Mountain Ash, CF45 3BB
• Sold Oct 2022£80,000 | 3 Bed House31, Bailey Street, Mountain Ash, CF45 3AS31, Bailey Street, Mountain Ash, CF45 3AS
• Sold Oct 2022£110,000 | 3 Bed House12, Albert Street, Mountain Ash, CF45 3BA12, Albert Street, Mountain Ash, CF45 3BA
• Sold Oct 2022£72,500 | 3 Bed House53, Clarence Street, Mountain Ash, CF45 3BD53, Clarence Street, Mountain Ash, CF45 3BD
• Sold May 2022£75,000 | 3 Bed House39, Bailey Street, Mountain Ash, CF45 3AS39, Bailey Street, Mountain Ash, CF45 3AS
• Sold Nov 2021£100,000 | 3 Bed House50, Bailey Street, Mountain Ash, CF45 3AS50, Bailey Street, Mountain Ash, CF45 3AS
• Sold Aug 2021£78,000 | 3 Bed House11, Albert Street, Mountain Ash, CF45 3BA11, Albert Street, Mountain Ash, CF45 3BA
• Sold Aug 2021£103,000 | 3 Bed House12, Clarence Street, Mountain Ash, CF45 3BB12, Clarence Street, Mountain Ash, CF45 3BB
• Sold Jul 2021£100,000 | 3 Bed House52, Bailey Street, Mountain Ash, CF45 3AS52, Bailey Street, Mountain Ash, CF45 3AS

Of the 102 addresses on Clarence Street, Mountain Ash, CF45, 10, Clarence Street, Mountain Ash comes out as the 49th largest and the 52nd most expensive in our analysis of the public data.

It is also £46k less expensive than the average property across the CF45 district.

• Mountain Ash

  |

  600 m away
• Penrhiwceiber

  |

  1.3 km away
• Fernhill

  |

  1.8 km away

The flood risk here is rated Very Low, based on Environment Agency data.