According to data from HM Land Registry, 9, Coplestone Street, Mountain Ash sits on a plot of 188 m².

We have plot size data on 38 out of 44 other houses in the postcode and 9, Coplestone Street, Mountain Ash sits on the 32nd largest plot.

9, Coplestone Street, Mountain Ash has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 05 Apr 2016.

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 HM Land Registry, 9, Coplestone Street, Mountain Ash was last sold on 23rd May 2003 for £48,000 and was recorded as a freehold house.

The property has only had this single sale since 1995.

• Sold May 2003£48,000

According to the Land Registry and our network of Estate Agents, there have been 37 sales of properties similar to 9, Coplestone Street, Mountain Ash within a radius of 650 metres since 2008.

The most recent example is 9, Clarence Street, Mountain Ash, CF45 3BB, a freehold house which sold for £130,000 on the 17th April 2026.

Read more about house prices in CF45.

• Sold Apr 2026£130,000 | 4 Bed House9, Clarence Street, Mountain Ash, CF45 3BB9, Clarence Street, Mountain Ash, CF45 3BB
• Sold Dec 2025£130,000 | 4 Bed House76, Consort Street, Mountain Ash, CF45 3AU76, Consort Street, Mountain Ash, CF45 3AU
• Sold Nov 2025£157,000 | 4 Bed House38, Aberpennar Street, Mountain Ash, CF45 3LS38, Aberpennar Street, Mountain Ash, CF45 3LS
• Sold Sep 2025£142,000 | 4 Bed House33, Kingcraft Street, Mountain Ash, CF45 3LT33, Kingcraft Street, Mountain Ash, CF45 3LT
• Sold Oct 2024£130,000 | 4 Bed House23, Coplestone Street, Mountain Ash, CF45 3LY23, Coplestone Street, Mountain Ash, CF45 3LY
• Sold Apr 2023£140,000 | 4 Bed House1, Aberpennar Street, Mountain Ash, CF45 3LS1, Aberpennar Street, Mountain Ash, CF45 3LS
• Sold Jul 2022£124,000 | 4 Bed House16, Coplestone Street, Mountain Ash, CF45 3LY16, Coplestone Street, Mountain Ash, CF45 3LY
• Sold Apr 2022£93,000 | 4 Bed House10, Darran Road, Mountain Ash, CF45 3HT10, Darran Road, Mountain Ash, CF45 3HT
• Sold Apr 2022£145,000 | 4 Bed House19, Aberpennar Street, Mountain Ash, CF45 3LS19, Aberpennar Street, Mountain Ash, CF45 3LS
• Sold Feb 2022£138,000 | 4 Bed House36, Coplestone Street, Mountain Ash, CF45 3LY36, Coplestone Street, Mountain Ash, CF45 3LY
• Sold Dec 2021£140,000 | 4 Bed House2, Albert Street, Mountain Ash, CF45 3BA2, Albert Street, Mountain Ash, CF45 3BA
• Sold Sep 2021£129,950 | 4 Bed House17, Aberpennar Street, Mountain Ash, CF45 3LS17, Aberpennar Street, Mountain Ash, CF45 3LS
• Sold Jan 2020£100,000 | 4 Bed House32, Kingcraft Street, Mountain Ash, CF45 3LT32, Kingcraft Street, Mountain Ash, CF45 3LT
• Sold Jul 2018£120,000 | 4 Bed House32, Llanwonno Road, Mountain Ash, CF45 3NB32, Llanwonno Road, Mountain Ash, CF45 3NB
• Sold Dec 2017£102,000 | 4 Bed House31, Kingcraft Street, Mountain Ash, CF45 3LT31, Kingcraft Street, Mountain Ash, CF45 3LT
• Sold Jul 2017£111,000 | 4 Bed House25, Aberpennar Street, Mountain Ash, CF45 3LS25, Aberpennar Street, Mountain Ash, CF45 3LS
• Sold Mar 2016£105,000 | 4 Bed House3, Ceridwen Street, Mountain Ash, CF45 3LU3, Ceridwen Street, Mountain Ash, CF45 3LU
• Sold Apr 2014£72,000 | 4 Bed House11, Coplestone Street, Mountain Ash, CF45 3LY11, Coplestone Street, Mountain Ash, CF45 3LY
• Sold Dec 2012£109,950 | 4 Bed House18, Aberpennar Street, Mountain Ash, CF45 3LS18, Aberpennar Street, Mountain Ash, CF45 3LS
• Sold Jun 2008£117,000 | 4 Bed House44, Coplestone Street, Mountain Ash, CF45 3LY44, Coplestone Street, Mountain Ash, CF45 3LY

Coplestone Street, Mountain Ash, CF45 has a total of 44 addresses. According to our analysis of all the public data, 9, Coplestone Street, Mountain Ash is the largest and the most expensive property on the street.

When compared to the postcode district it is £7k less expensive than the average property in CF45.

• Mountain Ash

  |

  600 m away
• Fernhill

  |

  1.4 km away
• Penrhiwceiber

  |

  1.7 km away

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