HM Land Registry records the plot of land for 43, Arthur Street, Mountain Ash as measuring 126 m².

That makes it the 42nd largest plot in the postcode, where 46 of the 51 other houses have recorded plot data.

43, Arthur Street, Mountain Ash has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 29 Sep 2020.

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

Since 2017 239 properties similar to 43, Arthur Street, Mountain Ash have sold within a radius of 710 metres, per the Land Registry and our network of Estate Agents.

The latest, on the 28th November 2025, was 13, Hughes Street, Mountain Ash, CF45 3UG, a freehold house which sold for £122,000.

Read more about house prices in CF45.

• 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 Oct 2025£125,000 | 3 Bed House9, Arthur Street, Mountain Ash, CF45 3BL9, Arthur Street, Mountain Ash, CF45 3BL
• 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 May 2025£101,000 | 3 Bed House40, Arthur Street, Mountain Ash, CF45 3BL40, Arthur Street, Mountain Ash, CF45 3BL
• Sold May 2025£103,000 | 3 Bed House15, Albany Street, Mountain Ash, CF45 3BE15, Albany Street, Mountain Ash, CF45 3BE
• 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 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 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 Apr 2023£86,000 | 3 Bed House44, Arthur Street, Mountain Ash, CF45 3BL44, Arthur Street, Mountain Ash, CF45 3BL
• Sold Dec 2022£86,500 | 3 Bed House28, Albany Street, Mountain Ash, CF45 3BE28, Albany Street, Mountain Ash, CF45 3BE
• Sold Oct 2019£80,000 | 3 Bed House16, Albany Street, Mountain Ash, CF45 3BE16, Albany Street, Mountain Ash, CF45 3BE
• Sold Sep 2019£39,000 | 3 Bed House34, Arthur Street, Mountain Ash, CF45 3BL34, Arthur Street, Mountain Ash, CF45 3BL
• Sold Mar 2018£58,500 | 3 Bed House37, Albany Street, Mountain Ash, CF45 3BE37, Albany Street, Mountain Ash, CF45 3BE
• Sold Jul 2017£39,500 | 3 Bed House38, Arthur Street, Mountain Ash, CF45 3BL38, Arthur Street, Mountain Ash, CF45 3BL

Of the 51 addresses on Arthur Street, Mountain Ash, CF45, 43, Arthur Street, Mountain Ash comes out as the 16th largest and the 17th most expensive in our analysis of the public data.

It is also £51k less expensive than the average property across the CF45 district.

• Mountain Ash

  |

  1.0 km away
• Penrhiwceiber

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  1.1 km away
• Fernhill

  |

  2.1 km away

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