HM Land Registry records the plot of land for 21, Railway Terrace, Mountain Ash as measuring 137 m².

That makes it the 7th largest plot in the postcode, where 22 of the 31 other houses have recorded plot data.

21, Railway Terrace, Mountain Ash has an Energy Performance Rating (EPC) of E. This is based on the most recent assessment, dated 24 Jul 2021.

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

Since 2020 244 properties similar to 21, Railway Terrace, Mountain Ash have sold within a radius of 1.0 kilometres, per the Land Registry and our network of Estate Agents.

The latest, on the 27th March 2026, was 32, Rheola Street, Mountain Ash, CF45 3TB, a freehold house which sold for £150,000.

Read more about house prices in CF45.

• Sold Mar 2026£150,000 | 3 Bed House32, Rheola Street, Mountain Ash, CF45 3TB32, Rheola Street, Mountain Ash, CF45 3TB
• Sold Feb 2026£95,000 | 3 Bed House11, Glanlay Street, Mountain Ash, CF45 3TL11, Glanlay Street, Mountain Ash, CF45 3TL
• Sold Nov 2025£135,000 | 3 Bed House9, Cynon Terrace, Mountain Ash, CF45 3SU9, Cynon Terrace, Mountain Ash, CF45 3SU
• Sold Sep 2025£126,000 | 3 Bed House16, Station Terrace, Mountain Ash, CF45 3SS16, Station Terrace, Mountain Ash, CF45 3SS
• Sold May 2025£69,000 | 3 Bed House11, Morris Avenue, Mountain Ash, CF45 3TW11, Morris Avenue, Mountain Ash, CF45 3TW
• Sold Feb 2025£85,000 | 3 Bed House15, Station Terrace, Mountain Ash, CF45 3SS15, Station Terrace, Mountain Ash, CF45 3SS
• Sold Dec 2024£75,000 | 3 Bed House53, Morris Avenue, Mountain Ash, CF45 3TW53, Morris Avenue, Mountain Ash, CF45 3TW
• Sold Nov 2024£90,000 | 3 Bed House15, Rheola Street, Mountain Ash, CF45 3TA15, Rheola Street, Mountain Ash, CF45 3TA
• Sold Aug 2024£125,000 | 3 Bed House2, Cynon Terrace, Mountain Ash, CF45 3SU2, Cynon Terrace, Mountain Ash, CF45 3SU
• Sold Jul 2024£64,000 | 3 Bed House31, Rheola Street, Mountain Ash, CF45 3TB31, Rheola Street, Mountain Ash, CF45 3TB
• Sold Jul 2024£118,000 | 3 Bed House64, Morris Avenue, Mountain Ash, CF45 3TW64, Morris Avenue, Mountain Ash, CF45 3TW
• Sold Feb 2024£105,000 | 3 Bed House67, Morris Avenue, Mountain Ash, CF45 3TW67, Morris Avenue, Mountain Ash, CF45 3TW
• Sold Dec 2023£118,000 | 3 Bed House45, Rheola Street, Mountain Ash, CF45 3TB45, Rheola Street, Mountain Ash, CF45 3TB
• Sold Nov 2022£99,950 | 3 Bed House11, Rheola Street, Mountain Ash, CF45 3TA11, Rheola Street, Mountain Ash, CF45 3TA
• Sold Sep 2022£85,000 | 3 Bed HouseGlan-Yr-Avon, Station Terrace, Mountain Ash, CF45 3SSGlan-Yr-Avon, Station Terrace, Mountain Ash, CF45 3SS
• Sold May 2022£90,000 | 3 Bed House38, Glanlay Street, Mountain Ash, CF45 3TL38, Glanlay Street, Mountain Ash, CF45 3TL
• Sold Jan 2022£75,000 | 3 Bed House49, Rheola Street, Mountain Ash, CF45 3TB49, Rheola Street, Mountain Ash, CF45 3TB
• Sold Nov 2021£97,000 | 3 Bed House37, Rheola Street, Mountain Ash, CF45 3TB37, Rheola Street, Mountain Ash, CF45 3TB
• Sold Jul 2020£84,000 | 3 Bed House52, Glanlay Street, Mountain Ash, CF45 3TN52, Glanlay Street, Mountain Ash, CF45 3TN
• Sold Jun 2020£39,000 | 3 Bed House14, Cynon Terrace, Mountain Ash, CF45 3SU14, Cynon Terrace, Mountain Ash, CF45 3SU

Of the 31 addresses on Railway Terrace, Mountain Ash, CF45, 21, Railway Terrace, Mountain Ash comes out as the 20th largest and the 18th most expensive in our analysis of the public data.

It is also £40k less expensive than the average property across the CF45 district.

• Penrhiwceiber

  |

  100 m away
• Mountain Ash

  |

  1.8 km away
• Merthyr Vale

  |

  2.6 km away

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