HM Land Registry records the plot of land for 23, Arnold Street, Mountain Ash as measuring 110 m².

That makes it the 26th largest plot in the postcode, where 55 of the 65 other houses have recorded plot data.

23, Arnold Street, Mountain Ash has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 20 Jun 2020.

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 23, Arnold Street, Mountain Ash completed on 27th November 2020 at £65,000 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 34.4% over the period since November 2020.

• Sold Nov 2020£65,000

Since 2018 185 properties similar to 23, 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£120,000 | 3 Bed House22, Allen Street, Mountain Ash, CF45 4BD22, Allen Street, Mountain Ash, CF45 4BD
• Sold Apr 2025£82,600 | 3 Bed House54, Arnold Street, Mountain Ash, CF45 4LF54, Arnold Street, Mountain Ash, CF45 4LF
• Sold May 2024£138,500 | 3 Bed House42, Phillip Street, Mountain Ash, CF45 4BG42, Phillip Street, Mountain Ash, CF45 4BG
• Sold Dec 2023£100,000 | 3 Bed House82, Phillip Street, Mountain Ash, CF45 4BG82, 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 Oct 2023£125,100 | 3 Bed House21, Phillip Street, Mountain Ash, CF45 4BE21, Phillip Street, Mountain Ash, CF45 4BE
• Sold Apr 2023£116,000 | 3 Bed House33, Arnold Street, Mountain Ash, CF45 4LF33, Arnold Street, Mountain Ash, CF45 4LF
• Sold Mar 2023£110,000 | 3 Bed House45, Arnold Street, Mountain Ash, CF45 4LF45, Arnold Street, Mountain Ash, CF45 4LF
• Sold Aug 2022£135,000 | 3 Bed House15, Arnold Street, Mountain Ash, CF45 4LF15, 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 Oct 2021£99,000 | 3 Bed House41, Phillip Street, Mountain Ash, CF45 4BG41, Phillip Street, Mountain Ash, CF45 4BG
• Sold Apr 2021£70,500 | 3 Bed House20, Arnold Street, Mountain Ash, CF45 4LF20, Arnold Street, Mountain Ash, CF45 4LF
• Sold Mar 2021£57,500 | 3 Bed House43, Phillip Street, Mountain Ash, CF45 4BG43, 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 Dec 2019£83,500 | 3 Bed House27, Arnold Street, Mountain Ash, CF45 4LF27, Arnold Street, Mountain Ash, CF45 4LF
• Sold Oct 2019£83,000 | 3 Bed House14, Arnold Street, Mountain Ash, CF45 4LF14, Arnold Street, Mountain Ash, CF45 4LF
• Sold May 2018£54,000 | 3 Bed House18, Arnold Street, Mountain Ash, CF45 4LF18, Arnold Street, Mountain Ash, CF45 4LF

Of the 65 addresses on Arnold Street, Mountain Ash, CF45, 23, Arnold Street, Mountain Ash comes out as the 51st largest and the 47th most expensive in our analysis of the public data.

It is also £44k less expensive than the average property across the CF45 district.

• Mountain Ash

  |

  400 m away
• Fernhill

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  1.5 km away
• Penrhiwceiber

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  2.0 km away

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