HM Land Registry records the plot of land for 83, Clarence Street, Mountain Ash as measuring 138 m².

That makes it the 25th largest plot in the postcode, where 60 of the 66 other houses have recorded plot data.

83, Clarence Street, Mountain Ash has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 03 Mar 2026.

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

Since 2018 269 properties similar to 83, Clarence Street, Mountain Ash have sold within a radius of 610 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 Oct 2025£112,000 | 3 Bed House32, Oakland Street, Mountain Ash, CF45 3AL32, 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 Apr 2025£118,000 | 3 Bed House11, Albany Street, Mountain Ash, CF45 3BE11, Albany Street, Mountain Ash, CF45 3BE
• Sold Feb 2025£99,950 | 3 Bed House7, Albany Street, Mountain Ash, CF45 3BE7, Albany Street, Mountain Ash, CF45 3BE
• 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£137,500 | 3 Bed House27, Oakland Street, Mountain Ash, CF45 3AL27, Oakland Street, Mountain Ash, CF45 3AL
• Sold Aug 2024£112,000 | 3 Bed House17, Consort Street, Mountain Ash, CF45 3AY17, Consort Street, Mountain Ash, CF45 3AY
• Sold Jun 2024£115,000 | 3 Bed House64, Clarence Street, Mountain Ash, CF45 3BD64, Clarence Street, Mountain Ash, CF45 3BD
• Sold Sep 2023£92,500 | 3 Bed House5, Albany Street, Mountain Ash, CF45 3BE5, Albany Street, Mountain Ash, CF45 3BE
• Sold Jul 2023£118,000 | 3 Bed House25, Mount Pleasant Terrace, Mountain Ash, CF45 3AN25, Mount Pleasant Terrace, Mountain Ash, CF45 3AN
• Sold Jun 2023£68,000 | 3 Bed House8, Albany Street, Mountain Ash, CF45 3BE8, Albany Street, Mountain Ash, CF45 3BE
• Sold May 2023£96,950 | 3 Bed House22, Oakland Street, Mountain Ash, CF45 3AL22, Oakland Street, Mountain Ash, CF45 3AL
• 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 Jan 2022£135,000 | 3 Bed House29, Oakland Street, Mountain Ash, CF45 3AL29, Oakland Street, Mountain Ash, CF45 3AL
• Sold Dec 2018£68,000 | 3 Bed House82, Clarence Street, Mountain Ash, CF45 3BD82, Clarence Street, Mountain Ash, CF45 3BD

Of the 102 addresses on Clarence Street, Mountain Ash, CF45, 83, Clarence Street, Mountain Ash comes out as the 40th largest and the 47th 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

  |

  700 m away
• Penrhiwceiber

  |

  1.2 km away
• Fernhill

  |

  1.9 km away

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