40, The Avenue, Mountain Ash occupies a 176 m² plot as recorded by HM Land Registry.

All 34 other houses in this postcode have recorded plot sizes, and this one ranks as the 5th largest.

40, The Avenue, Mountain Ash has an Energy Performance Rating (EPC) of E. This is based on the most recent assessment, dated 20 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 25 sales of comparable properties within 1.4 kilometres of 40, The Avenue, Mountain Ash since 2015.

Most recently, 30, John Street, Aberdare, CF44 6BL, a freehold house, sold at £62,500 on the 22nd October 2025.

Read more about house prices in CF45.

• Sold Oct 2025£62,500 | 2 Bed House30, John Street, Aberdare, CF44 6BL30, John Street, Aberdare, CF44 6BL
• Sold Sep 2025£77,500 | 3 Bed House53, The Avenue, Mountain Ash, CF45 4DU53, The Avenue, Mountain Ash, CF45 4DU
• Sold Aug 2025£70,000 | 2 Bed House90, John Street, Aberdare, CF44 6BN90, John Street, Aberdare, CF44 6BN
• Sold Jul 2025£93,500 | 2 Bed House4, Tanycoed Terrace, Aberdare, CF44 6AY4, Tanycoed Terrace, Aberdare, CF44 6AY
• Sold Apr 2025£60,000 | 3 Bed House39, John Street, Aberdare, CF44 6BL39, John Street, Aberdare, CF44 6BL
• Sold Jan 2025£31,010 | 2 Bed House64, John Street, Aberdare, CF44 6BN64, John Street, Aberdare, CF44 6BN
• Sold Nov 2024£68,000 | 2 Bed House46, John Street, Aberdare, CF44 6BL46, John Street, Aberdare, CF44 6BL
• Sold Dec 2023£98,000 | 3 Bed House56, John Street, Aberdare, CF44 6BL56, John Street, Aberdare, CF44 6BL
• Sold Nov 2023£63,000 | 3 Bed House40, John Street, Aberdare, CF44 6BL40, John Street, Aberdare, CF44 6BL
• Sold Nov 2023£82,500 | 2 Bed House71, John Street, Aberdare, CF44 6BN71, John Street, Aberdare, CF44 6BN
• Sold Jan 2023£50,000 | 3 Bed House60, John Street, Aberdare, CF44 6BN60, John Street, Aberdare, CF44 6BN
• Sold Apr 2022£60,000 | 3 Bed House2, Commercial Street, Mountain Ash, CF45 3PS2, Commercial Street, Mountain Ash, CF45 3PS
• Sold Feb 2022£89,995 | 3 Bed House25, John Street, Aberdare, CF44 6BL25, John Street, Aberdare, CF44 6BL
• Sold Nov 2021£56,000 | 2 Bed House51, John Street, Aberdare, CF44 6BL51, John Street, Aberdare, CF44 6BL
• Sold Feb 2021£52,000 | 3 Bed House57, John Street, Aberdare, CF44 6BN57, John Street, Aberdare, CF44 6BN
• Sold Dec 2020£69,995 | 3 Bed House74, John Street, Aberdare, CF44 6BN74, John Street, Aberdare, CF44 6BN
• Sold Mar 2020£43,000 | 2 Bed House12, John Street, Aberdare, CF44 6BL12, John Street, Aberdare, CF44 6BL
• Sold Feb 2018£35,000 | 2 Bed House21, John Street, Aberdare, CF44 6BL21, John Street, Aberdare, CF44 6BL
• Sold Dec 2017£45,000 | 3 Bed House58, John Street, Aberdare, CF44 6BN58, John Street, Aberdare, CF44 6BN
• Sold Oct 2015£55,000 | 2 Bed House9, Mostyn Street, Aberdare, CF44 6BA9, Mostyn Street, Aberdare, CF44 6BA

Our analysis of the public data ranks 40, The Avenue, Mountain Ash as the 46th largest and the 65th most expensive of the 90 addresses on The Avenue, Mountain Ash, CF45.

Against the CF45 postcode district average, it is £82k less expensive than the typical property.

• Fernhill

  |

  900 m away
• Cwmbach

  |

  1.8 km away
• Mountain Ash

  |

  1.8 km away

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