17, The Avenue, Mountain Ash has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 15 Dec 2025.

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

According to the Land Registry and our network of Estate Agents, there have been 125 sales of properties similar to 17, The Avenue, Mountain Ash within a radius of 1.4 kilometres since 2011.

The most recent example is 8, Woodland Terrace, Mountain Ash, CF45 3RF, a freehold house which sold for £95,000 on the 17th December 2025.

Read more about house prices in CF45.

• Sold Dec 2025£95,000 | 3 Bed House8, Woodland Terrace, Mountain Ash, CF45 3RF8, Woodland Terrace, Mountain Ash, CF45 3RF
• Sold Jul 2025£115,000 | 3 Bed House9, Cadwaladr Street, Mountain Ash, CF45 3RD9, Cadwaladr Street, Mountain Ash, CF45 3RD
• Sold Oct 2024£165,000 | 3 Bed House5, High Row, Mountain Ash, CF45 4DW5, High Row, Mountain Ash, CF45 4DW
• Sold Sep 2024£80,000 | 3 Bed House16, Cadwaladr Street, Mountain Ash, CF45 3RD16, Cadwaladr Street, Mountain Ash, CF45 3RD
• Sold May 2023£85,000 | 3 Bed House12, Toncoch Terrace, Mountain Ash, CF45 4DY12, Toncoch Terrace, Mountain Ash, CF45 4DY
• Sold Jan 2023£99,900 | 3 Bed House19, Greenfield Terrace, Mountain Ash, CF45 4EB19, Greenfield Terrace, Mountain Ash, CF45 4EB
• 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 Oct 2021£104,950 | 3 Bed House21, Toncoch Terrace, Mountain Ash, CF45 4DY21, Toncoch Terrace, Mountain Ash, CF45 4DY
• Sold Aug 2021£92,500 | 3 Bed House4, Middle Row, Mountain Ash, CF45 4DN4, 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 Sep 2017£75,000 | 3 Bed House3, Toncoch Terrace, Mountain Ash, CF45 4DY3, Toncoch Terrace, Mountain Ash, CF45 4DY
• Sold Sep 2017£74,500 | 3 Bed House2, Middle Row, Mountain Ash, CF45 4DN2, Middle Row, Mountain Ash, CF45 4DN
• 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 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

The Avenue, Mountain Ash, CF45 has a total of 90 addresses. According to our analysis of all the public data, 17, The Avenue, Mountain Ash is the 26th largest and the 15th most expensive property on the street.

When compared to the postcode district it is £25k less expensive than the average property in CF45.

• Fernhill

  |

  900 m away
• Cwmbach

  |

  1.7 km away
• Mountain Ash

  |

  1.8 km away

According to data from the Environment Agency, the flood risk in this area is considered to be Very Low.