23, The Avenue, Mountain Ash occupies a 185 m² plot as recorded by HM Land Registry.

Of the 41 other houses in this postcode, 38 have recorded plot sizes, and this one ranks as the 20th largest.

23, The Avenue, Mountain Ash has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 23 Feb 2015.

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

Land Registry records and our Estate Agent network show 104 sales of comparable properties within 1.4 kilometres of 23, The Avenue, Mountain Ash since 2009.

Most recently, 14, Lyndhurst Street, Mountain Ash, CF45 4AP, a freehold house, sold at £157,500 on the 13th April 2026.

Read more about house prices in CF45.

• Sold Apr 2026£157,500 | 3 Bed House14, Lyndhurst Street, Mountain Ash, CF45 4AP14, Lyndhurst Street, Mountain Ash, CF45 4AP
• Sold Dec 2025£95,000 | 3 Bed House8, Woodland Terrace, Mountain Ash, CF45 3RF8, Woodland Terrace, Mountain Ash, CF45 3RF
• Sold Aug 2025£126,000 | 3 Bed House19, Beckett Street, Mountain Ash, CF45 4AW19, Beckett Street, Mountain Ash, CF45 4AW
• Sold Oct 2024£165,000 | 3 Bed House5, High Row, Mountain Ash, CF45 4DW5, High Row, Mountain Ash, CF45 4DW
• Sold Feb 2024£153,000 | 3 Bed House17, Toncoch Terrace, Mountain Ash, CF45 4DY17, Toncoch Terrace, Mountain Ash, CF45 4DY
• Sold Jun 2023£117,500 | 3 Bed House19, Toncoch Terrace, Mountain Ash, CF45 4DY19, Toncoch Terrace, Mountain Ash, CF45 4DY
• Sold May 2023£85,000 | 3 Bed House12, Toncoch Terrace, Mountain Ash, CF45 4DY12, Toncoch Terrace, Mountain Ash, CF45 4DY
• Sold Dec 2022£150,000 | 3 Bed House33, The Avenue, Mountain Ash, CF45 4DT33, The Avenue, Mountain Ash, CF45 4DT
• Sold Dec 2022£88,000 | 3 Bed House28, Toncoch Terrace, Mountain Ash, CF45 4DY28, Toncoch Terrace, Mountain Ash, CF45 4DY
• Sold Sep 2022£150,000 | 3 Bed House23, Toncoch Terrace, Mountain Ash, CF45 4DY23, Toncoch Terrace, Mountain Ash, CF45 4DY
• Sold Apr 2022£120,000 | 3 Bed House11, Greenfield Terrace, Mountain Ash, CF45 4EB11, Greenfield Terrace, Mountain Ash, CF45 4EB
• Sold Dec 2020£100,000 | 3 Bed House6, Middle Row, Mountain Ash, CF45 4DN6, Middle Row, Mountain Ash, CF45 4DN
• Sold Jan 2019£63,000 | 3 Bed House25, The Avenue, Mountain Ash, CF45 4DT25, The Avenue, Mountain Ash, CF45 4DT
• Sold Apr 2018£92,000 | 3 Bed House27, Toncoch Terrace, Mountain Ash, CF45 4DY27, Toncoch Terrace, Mountain Ash, CF45 4DY
• Sold Dec 2016£70,000 | 3 Bed House2, Toncoch Terrace, Mountain Ash, CF45 4DY2, Toncoch Terrace, Mountain Ash, CF45 4DY
• Sold Oct 2013£70,000 | 3 Bed House26, Toncoch Terrace, Mountain Ash, CF45 4DY26, Toncoch Terrace, Mountain Ash, CF45 4DY
• Sold Apr 2012£85,000 | 3 Bed House16, Toncoch Terrace, Mountain Ash, CF45 4DY16, Toncoch Terrace, Mountain Ash, CF45 4DY
• Sold Mar 2012£83,000 | 3 Bed House18, Toncoch Terrace, Mountain Ash, CF45 4DY18, Toncoch Terrace, Mountain Ash, CF45 4DY
• Sold Jun 2011£40,000 | 3 Bed House21, The Avenue, Mountain Ash, CF45 4DT21, The Avenue, Mountain Ash, CF45 4DT
• Sold Nov 2009£85,000 | 3 Bed House30, Toncoch Terrace, Mountain Ash, CF45 4DY30, Toncoch Terrace, Mountain Ash, CF45 4DY

Our analysis of the public data ranks 23, The Avenue, Mountain Ash as the 10th largest and the 9th most expensive of the 90 addresses on The Avenue, Mountain Ash, CF45.

Against the CF45 postcode district average, it is £17k less expensive than the typical property.

• Fernhill

  |

  900 m away
• Cwmbach

  |

  1.7 km away
• Mountain Ash

  |

  1.8 km away

Environment Agency data suggests this area has a Very Low risk of flooding.