According to data from HM Land Registry, 55, The Avenue, Mountain Ash sits on a plot of 163 m².

We have plot size data on 34 out of 34 other houses in the postcode and 55, The Avenue, Mountain Ash sits on the 10th largest plot.

55, The Avenue, Mountain Ash has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 06 Jun 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 23 sales of properties similar to 55, The Avenue, Mountain Ash within a radius of 1.4 kilometres since 2009.

The most recent example is 53, The Avenue, Mountain Ash, CF45 4DU, a freehold house which sold for £77,500 on the 5th September 2025.

Read more about house prices in CF45.

• Sold Sep 2025£77,500 | 3 Bed House53, The Avenue, Mountain Ash, CF45 4DU53, The Avenue, Mountain Ash, CF45 4DU
• 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 May 2023£68,000 | 3 Bed House44, Commercial Street, Mountain Ash, CF45 3PW44, Commercial Street, Mountain Ash, CF45 3PW
• Sold Jan 2023£50,000 | 3 Bed House60, John Street, Aberdare, CF44 6BN60, John Street, Aberdare, CF44 6BN
• Sold Sep 2022£74,995 | 3 Bed House1, Bronallt Terrace, Aberdare, CF44 6BW1, Bronallt Terrace, Aberdare, CF44 6BW
• Sold May 2022£68,000 | 3 Bed House20, High Street, Mountain Ash, CF45 3PE20, High Street, Mountain Ash, CF45 3PE
• Sold Apr 2022£60,000 | 3 Bed House2, Commercial Street, Mountain Ash, CF45 3PS2, Commercial Street, Mountain Ash, CF45 3PS
• Sold Apr 2022£95,955 | 3 Bed House5, Graig Street, Mountain Ash, CF45 3PD5, Graig Street, Mountain Ash, CF45 3PD
• Sold Mar 2022£69,000 | 3 Bed House12, Graig Street, Mountain Ash, CF45 3PD12, Graig Street, Mountain Ash, CF45 3PD
• 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 2017£45,000 | 3 Bed House58, John Street, Aberdare, CF44 6BN58, John Street, Aberdare, CF44 6BN
• Sold Jun 2017£58,000 | 2 Bed House30, Mostyn Street, Aberdare, CF44 6BA30, Mostyn Street, Aberdare, CF44 6BA
• Sold Oct 2015£55,000 | 2 Bed House9, Mostyn Street, Aberdare, CF44 6BA9, Mostyn Street, Aberdare, CF44 6BA
• Sold Nov 2009£89,000 | 3 Bed House5, Bronallt Terrace, Aberdare, CF44 6BW5, Bronallt Terrace, Aberdare, CF44 6BW

The Avenue, Mountain Ash, CF45 has a total of 90 addresses. According to our analysis of all the public data, 55, The Avenue, Mountain Ash is the 45th largest and the 56th most expensive property on the street.

When compared to the postcode district it is £80k less expensive than the average property in CF45.

• Fernhill

  |

  900 m away
• Cwmbach

  |

  1.8 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.