HM Land Registry records the plot of land for 3, Copley Street, Mountain Ash as measuring 97 m².

That makes it the 26th largest plot in the postcode, where 27 of the 28 other houses have recorded plot data.

3, Copley Street, Mountain Ash has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 03 Jun 2010.

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 3, Copley Street, Mountain Ash completed on 1st November 2019 at £108,000 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 47.9% over the period since November 2019.

• Sold Nov 2019£108,000
• Sold Sep 2015£92,000
• Sold Nov 2006£72,000

Since 2018 194 properties similar to 3, Copley Street, Mountain Ash have sold within a radius of 770 metres, per the Land Registry and our network of Estate Agents.

The latest, on the 31st October 2025, was 26, The Triangle, Mountain Ash, CF45 4BA, a freehold house which sold for £130,000.

Read more about house prices in CF45.

• Sold Oct 2025£130,000 | 3 Bed House26, The Triangle, Mountain Ash, CF45 4BA26, The Triangle, Mountain Ash, CF45 4BA
• Sold Oct 2025£140,000 | 3 Bed House59, Arnold Street, Mountain Ash, CF45 4LF59, Arnold Street, Mountain Ash, CF45 4LF
• Sold Aug 2025£126,000 | 3 Bed House19, Beckett Street, Mountain Ash, CF45 4AW19, Beckett Street, Mountain Ash, CF45 4AW
• Sold Jul 2025£175,000 | 3 Bed House27, The Triangle, Mountain Ash, CF45 4BA27, The Triangle, Mountain Ash, CF45 4BA
• Sold Oct 2024£148,500 | 3 Bed House33, Phillip Street, Mountain Ash, CF45 4BE33, Phillip Street, Mountain Ash, CF45 4BE
• Sold Sep 2024£85,000 | 3 Bed House42, Allen Street, Mountain Ash, CF45 4BB42, Allen Street, Mountain Ash, CF45 4BB
• Sold May 2024£143,000 | 3 Bed House8, Copley Street, Mountain Ash, CF45 4AS8, Copley Street, Mountain Ash, CF45 4AS
• Sold Jan 2024£105,000 | 3 Bed House12, Phillip Street, Mountain Ash, CF45 4BE12, Phillip Street, Mountain Ash, CF45 4BE
• Sold Oct 2023£185,000 | 3 Bed House3, Richmond Road, Mountain Ash, CF45 4AN3, Richmond Road, Mountain Ash, CF45 4AN
• Sold Aug 2023£115,000 | 3 Bed House47, Allen Street, Mountain Ash, CF45 4BB47, Allen Street, Mountain Ash, CF45 4BB
• Sold Jun 2022£129,995 | 3 Bed House4, Copley Street, Mountain Ash, CF45 4AS4, Copley Street, Mountain Ash, CF45 4AS
• Sold Jun 2022£149,995 | 3 Bed House29, The Triangle, Mountain Ash, CF45 4BA29, The Triangle, Mountain Ash, CF45 4BA
• Sold Mar 2022£115,000 | 3 Bed House56, Phillip Street, Mountain Ash, CF45 4BG56, Phillip Street, Mountain Ash, CF45 4BG
• Sold Jan 2022£85,000 | 3 Bed House21, The Triangle, Mountain Ash, CF45 4BA21, The Triangle, Mountain Ash, CF45 4BA
• Sold May 2021£109,000 | 3 Bed House30, Phillip Street, Mountain Ash, CF45 4BE30, Phillip Street, Mountain Ash, CF45 4BE
• Sold Jul 2020£112,000 | 3 Bed House51, Phillip Street, Mountain Ash, CF45 4BG51, Phillip Street, Mountain Ash, CF45 4BG
• Sold May 2020£102,000 | 3 Bed House17, Beckett Street, Mountain Ash, CF45 4AW17, Beckett Street, Mountain Ash, CF45 4AW
• Sold Jul 2019£90,000 | 3 Bed House27, Copley Street, Mountain Ash, CF45 4AS27, Copley Street, Mountain Ash, CF45 4AS
• Sold Mar 2019£114,000 | 3 Bed House11, Beckett Street, Mountain Ash, CF45 4AW11, Beckett Street, Mountain Ash, CF45 4AW
• Sold Jul 2018£65,000 | 3 Bed House23, Copley Street, Mountain Ash, CF45 4AS23, Copley Street, Mountain Ash, CF45 4AS

Of the 28 addresses on Copley Street, Mountain Ash, CF45, 3, Copley Street, Mountain Ash comes out as the 7th largest and the 7th most expensive in our analysis of the public data.

It is also £15k less expensive than the average property across the CF45 district.

• Mountain Ash

  |

  600 m away
• Fernhill

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  1.3 km away
• Penrhiwceiber

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  2.2 km away

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