HM Land Registry records the plot of land for 7, Walsh Street, Mountain Ash as measuring 108 m².

That makes it the 24th largest plot in the postcode, where 35 of the 39 other houses have recorded plot data.

7, Walsh Street, Mountain Ash has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 17 Mar 2018.

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 7, Walsh Street, Mountain Ash completed on 18th September 2025 at £75,000 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 52.4% over the period since September 2025.

• Sold Sep 2025£75,000
• Sold Nov 2007£40,000

Since 2007 170 properties similar to 7, Walsh Street, Mountain Ash have sold within a radius of 1.6 kilometres, per the Land Registry and our network of Estate Agents.

The latest, on the 10th December 2025, was 96, Bryntirion, Mountain Ash, CF45 4EX, a freehold house which sold for £82,950.

Read more about house prices in CF45.

• Sold Dec 2025£82,950 | 3 Bed House96, Bryntirion, Mountain Ash, CF45 4EX96, Bryntirion, Mountain Ash, CF45 4EX
• Sold Nov 2025£88,000 | 3 Bed House134, Bryntirion, Mountain Ash, CF45 4EX134, Bryntirion, Mountain Ash, CF45 4EX
• Sold Aug 2025£83,000 | 3 Bed House90, Bryntirion, Mountain Ash, CF45 4EX90, Bryntirion, Mountain Ash, CF45 4EX
• Sold Jun 2025£59,000 | 3 Bed House2, Walsh Street, Mountain Ash, CF45 4YS2, Walsh Street, Mountain Ash, CF45 4YS
• Sold May 2025£86,000 | 3 Bed House179, Bryntirion, Mountain Ash, CF45 4PJ179, Bryntirion, Mountain Ash, CF45 4PJ
• Sold Oct 2024£115,000 | 3 Bed House74, Pentwyn Avenue, Mountain Ash, CF45 4YF74, Pentwyn Avenue, Mountain Ash, CF45 4YF
• Sold Aug 2024£100,000 | 3 Bed House55, Avondale Street, Mountain Ash, CF45 4YY55, Avondale Street, Mountain Ash, CF45 4YY
• Sold Jun 2024£65,000 | 3 Bed House3, Homerton Street, Mountain Ash, CF45 4YP3, Homerton Street, Mountain Ash, CF45 4YP
• Sold May 2024£95,000 | 3 Bed House4, Commercial Place, Mountain Ash, CF45 4YR4, Commercial Place, Mountain Ash, CF45 4YR
• Sold Apr 2024£80,000 | 3 Bed House199, Bryntirion, Mountain Ash, CF45 4PJ199, Bryntirion, Mountain Ash, CF45 4PJ
• Sold Mar 2024£58,000 | 3 Bed House58, Avondale Street, Mountain Ash, CF45 4YY58, Avondale Street, Mountain Ash, CF45 4YY
• Sold Aug 2022£80,000 | 3 Bed House56, Avondale Street, Mountain Ash, CF45 4YY56, Avondale Street, Mountain Ash, CF45 4YY
• Sold Jul 2022£105,000 | 3 Bed House13, Walsh Street, Mountain Ash, CF45 4YS13, Walsh Street, Mountain Ash, CF45 4YS
• Sold Nov 2018£82,000 | 3 Bed House39, Walsh Street, Mountain Ash, CF45 4YS39, Walsh Street, Mountain Ash, CF45 4YS
• Sold Dec 2015£18,000 | 3 Bed House6, Walsh Street, Mountain Ash, CF45 4YS6, Walsh Street, Mountain Ash, CF45 4YS
• Sold May 2014£40,000 | 3 Bed House4, Walsh Street, Mountain Ash, CF45 4YS4, Walsh Street, Mountain Ash, CF45 4YS
• Sold Jul 2013£55,000 | 3 Bed House35, Walsh Street, Mountain Ash, CF45 4YS35, Walsh Street, Mountain Ash, CF45 4YS
• Sold Feb 2010£27,000 | 3 Bed House24, Walsh Street, Mountain Ash, CF45 4YS24, Walsh Street, Mountain Ash, CF45 4YS
• Sold Mar 2009£65,000 | 3 Bed House10, Walsh Street, Mountain Ash, CF45 4YS10, Walsh Street, Mountain Ash, CF45 4YS
• Sold Nov 2007£81,500 | 3 Bed House5, Walsh Street, Mountain Ash, CF45 4YS5, Walsh Street, Mountain Ash, CF45 4YS

Of the 39 addresses on Walsh Street, Mountain Ash, CF45, 7, Walsh Street, Mountain Ash comes out as the 25th largest and the 26th most expensive in our analysis of the public data.

It is also £66k less expensive than the average property across the CF45 district.

• Penrhiwceiber

  |

  1.3 km away
• Quakers Yard

  |

  1.7 km away
• Abercynon

  |

  2.3 km away

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