HM Land Registry records the plot of land for 41, Thomas Street, Mountain Ash as measuring 244 m².

That makes it the 3rd largest plot in the postcode, where 14 of the 32 other houses have recorded plot data.

41, Thomas Street, Mountain Ash has an Energy Performance Rating (EPC) of E. This is based on the most recent assessment, dated 04 May 2017.

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

The most recent sale of 41, Thomas Street, Mountain Ash completed on 24th January 2008 at £63,000 and was recorded by HM Land Registry as a freehold house.

Since 1995 the property has sold twice.

Values of comparable properties have risen by 87.8% over the period since January 2008.

• Sold Jan 2008£63,000
• Sold Nov 2003£38,000

Since 2018 66 properties similar to 41, Thomas Street, Mountain Ash have sold within a radius of 650 metres, per the Land Registry and our network of Estate Agents.

The latest, on the 12th January 2026, was 38, Harcourt Terrace, Mountain Ash, CF45 3SD, a freehold house which sold for £97,000.

Read more about house prices in CF45.

• Sold Jan 2026£97,000 | 3 Bed House38, Harcourt Terrace, Mountain Ash, CF45 3SD38, Harcourt Terrace, Mountain Ash, CF45 3SD
• Sold Aug 2025£50,000 | 3 Bed House47, Victoria Street, Mountain Ash, CF45 3AP47, Victoria Street, Mountain Ash, CF45 3AP
• Sold Jul 2025£95,000 | 3 Bed House38, Albert Street, Mountain Ash, CF45 3BA38, Albert Street, Mountain Ash, CF45 3BA
• Sold Jun 2025£66,000 | 3 Bed House40B, Glyngwyn Street, Mountain Ash, CF45 3AF40B, Glyngwyn Street, Mountain Ash, CF45 3AF
• 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 May 2025£119,000 | 3 Bed House74, Victoria Street, Mountain Ash, CF45 3AP74, Victoria Street, Mountain Ash, CF45 3AP
• Sold Apr 2025£72,000 | 3 Bed House16, Albert Street, Mountain Ash, CF45 3BA16, Albert Street, Mountain Ash, CF45 3BA
• Sold Sep 2024£81,000 | 3 Bed House34, Glyngwyn Street, Mountain Ash, CF45 3AF34, Glyngwyn Street, Mountain Ash, CF45 3AF
• Sold Jul 2024£108,000 | 3 Bed House41, Arthur Street, Mountain Ash, CF45 3BL41, Arthur Street, Mountain Ash, CF45 3BL
• Sold Jul 2023£80,000 | 3 Bed House30, Glyngwyn Street, Mountain Ash, CF45 3AF30, Glyngwyn Street, Mountain Ash, CF45 3AF
• Sold Jun 2023£67,000 | 3 Bed House6, Morgan Street, Mountain Ash, CF45 3YN6, Morgan Street, Mountain Ash, CF45 3YN
• Sold Mar 2023£150,000 | 3 Bed House35, Cilhaul Terrace, Mountain Ash, CF45 3ND35, Cilhaul Terrace, Mountain Ash, CF45 3ND
• Sold Feb 2022£95,000 | 3 Bed House28, Thomas Street, Mountain Ash, CF45 3BU28, Thomas Street, Mountain Ash, CF45 3BU
• Sold Jun 2021£70,000 | 3 Bed House2, Consort Street, Mountain Ash, CF45 3AY2, Consort Street, Mountain Ash, CF45 3AY
• Sold May 2021£87,000 | 3 Bed House8, Thomas Street, Mountain Ash, CF45 3BU8, Thomas Street, Mountain Ash, CF45 3BU
• Sold Nov 2019£79,000 | 3 Bed House14, Harcourt Terrace, Mountain Ash, CF45 3SD14, Harcourt Terrace, Mountain Ash, CF45 3SD
• Sold Sep 2019£750 | 3 Bed House9, King Street, Mountain Ash, CF45 3BW9, King Street, Mountain Ash, CF45 3BW
• Sold Mar 2019£50,000 | 3 Bed House11, Arthur Street, Mountain Ash, CF45 3BL11, Arthur Street, Mountain Ash, CF45 3BL
• Sold Jan 2018£43,000 | 3 Bed House39, Arthur Street, Mountain Ash, CF45 3BL39, Arthur Street, Mountain Ash, CF45 3BL

Of the 73 addresses on Thomas Street, Mountain Ash, CF45, 41, Thomas Street, Mountain Ash comes out as the 66th largest and the 67th most expensive in our analysis of the public data.

It is also £50k less expensive than the average property across the CF45 district.

• Mountain Ash

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  1.0 km away
• Penrhiwceiber

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  1.0 km away
• Fernhill

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  2.1 km away

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