HM Land Registry records the plot of land for 31, Clarence Street, Mountain Ash as measuring 139 m².

That makes it the 13th largest plot in the postcode, where 32 of the 36 other houses have recorded plot data.

The most recent sale of 31, Clarence Street, Mountain Ash completed on 5th June 2007 at £85,000 and was recorded by HM Land Registry as a freehold house.

Since 1995 the property has sold 3 times.

Values of comparable properties have risen by 94.8% over the period since June 2007.

• Sold Jun 2007£85,000
• Sold May 2003£33,250
• Sold Jul 1995£13,000

Since 2019 251 properties similar to 31, 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 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£90,000 | 3 Bed House26, Mount Pleasant Terrace, Mountain Ash, CF45 3AN26, Mount Pleasant Terrace, Mountain Ash, CF45 3AN
• 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 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£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£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 Mar 2022£100,000 | 3 Bed House32, Bailey Street, Mountain Ash, CF45 3AS32, 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 May 2021£65,000 | 3 Bed House61, Consort Street, Mountain Ash, CF45 3AU61, Consort Street, Mountain Ash, CF45 3AU
• Sold Oct 2019£92,000 | 3 Bed House35, Clarence Street, Mountain Ash, CF45 3BB35, Clarence Street, Mountain Ash, CF45 3BB

Of the 102 addresses on Clarence Street, Mountain Ash, CF45, 31, Clarence Street, Mountain Ash comes out as the 27th largest and the 29th most expensive in our analysis of the public data.

It is also £41k 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.