HM Land Registry records the plot of land for 15, Arnold Street, Mountain Ash as measuring 108 m².

That makes it the 31st largest plot in the postcode, where 55 of the 65 other houses have recorded plot data.

15, Arnold Street, Mountain Ash has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 21 Apr 2022.

The property is 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 15, Arnold Street, Mountain Ash completed on 26th August 2022 at £135,000 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 5.4% over the period since August 2022.

• Sold Aug 2022£135,000
• Sold Sep 2013£44,000
• Sold Jan 1996£34,995

Since 2016 243 properties similar to 15, Arnold Street, Mountain Ash have sold within a radius of 720 metres, per the Land Registry and our network of Estate Agents.

The latest, on the 4th July 2025, was 50, Phillip Street, Mountain Ash, CF45 4BG, a freehold house which sold for £125,000.

Read more about house prices in CF45.

• Sold Jul 2025£125,000 | 3 Bed House50, Phillip Street, Mountain Ash, CF45 4BG50, Phillip Street, Mountain Ash, CF45 4BG
• Sold Apr 2025£82,600 | 3 Bed House54, Arnold Street, Mountain Ash, CF45 4LF54, Arnold Street, Mountain Ash, CF45 4LF
• Sold Oct 2024£80,000 | 3 Bed House18, Phillip Street, Mountain Ash, CF45 4BE18, Phillip Street, Mountain Ash, CF45 4BE
• Sold Jul 2024£140,000 | 3 Bed House26, Phillip Street, Mountain Ash, CF45 4BE26, Phillip Street, Mountain Ash, CF45 4BE
• Sold May 2024£138,500 | 3 Bed House42, Phillip Street, Mountain Ash, CF45 4BG42, Phillip Street, Mountain Ash, CF45 4BG
• Sold Nov 2023£90,000 | 3 Bed House57, Arnold Street, Mountain Ash, CF45 4LF57, Arnold Street, Mountain Ash, CF45 4LF
• Sold Apr 2023£116,000 | 3 Bed House33, Arnold Street, Mountain Ash, CF45 4LF33, Arnold Street, Mountain Ash, CF45 4LF
• Sold Mar 2022£68,000 | 3 Bed House75, Phillip Street, Mountain Ash, CF45 4BG75, Phillip Street, Mountain Ash, CF45 4BG
• Sold Sep 2021£107,500 | 3 Bed House37, Arnold Street, Mountain Ash, CF45 4LF37, Arnold Street, Mountain Ash, CF45 4LF
• Sold Jun 2021£80,000 | 3 Bed House24, Arnold Street, Mountain Ash, CF45 4LF24, Arnold Street, Mountain Ash, CF45 4LF
• Sold Apr 2021£70,500 | 3 Bed House20, Arnold Street, Mountain Ash, CF45 4LF20, Arnold Street, Mountain Ash, CF45 4LF
• Sold Nov 2020£65,000 | 3 Bed House23, Arnold Street, Mountain Ash, CF45 4LF23, Arnold Street, Mountain Ash, CF45 4LF
• Sold Nov 2020£55,000 | 3 Bed House72, Phillip Street, Mountain Ash, CF45 4BG72, Phillip Street, Mountain Ash, CF45 4BG
• Sold Sep 2020£55,000 | 3 Bed House32, Arnold Street, Mountain Ash, CF45 4LF32, Arnold Street, Mountain Ash, CF45 4LF
• Sold Aug 2020£67,000 | 3 Bed House26, Arnold Street, Mountain Ash, CF45 4LF26, Arnold Street, Mountain Ash, CF45 4LF
• Sold Aug 2020£86,000 | 3 Bed House21, Arnold Street, Mountain Ash, CF45 4LF21, Arnold Street, Mountain Ash, CF45 4LF
• Sold Aug 2020£72,000 | 3 Bed House58, Phillip Street, Mountain Ash, CF45 4BG58, Phillip Street, Mountain Ash, CF45 4BG
• Sold Dec 2019£83,500 | 3 Bed House27, Arnold Street, Mountain Ash, CF45 4LF27, Arnold Street, Mountain Ash, CF45 4LF
• Sold Jul 2019£89,000 | 3 Bed House61, Arnold Street, Mountain Ash, CF45 4LF61, Arnold Street, Mountain Ash, CF45 4LF
• Sold Mar 2016£82,000 | 3 Bed House22, Arnold Street, Mountain Ash, CF45 4LF22, Arnold Street, Mountain Ash, CF45 4LF

Of the 65 addresses on Arnold Street, Mountain Ash, CF45, 15, Arnold Street, Mountain Ash comes out as the 40th largest and the 40th most expensive in our analysis of the public data.

It is also £38k less expensive than the average property across the CF45 district.

• Mountain Ash

  |

  400 m away
• Fernhill

  |

  1.5 km away
• Penrhiwceiber

  |

  2.0 km away

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