According to data from HM Land Registry, 20, Aberpennar Street, Mountain Ash sits on a plot of 117 m².

We have plot size data on 45 out of 52 other houses in the postcode and 20, Aberpennar Street, Mountain Ash sits on the 41st largest plot.

20, Aberpennar Street, Mountain Ash has an Energy Performance Rating (EPC) of E. This is based on the most recent assessment, dated 10 Jul 2014.

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, 20, Aberpennar Street, Mountain Ash was last sold on 4th December 1998 for £38,500 and was recorded as a freehold house.

The property has only had this single sale since 1995.

• Sold Dec 1998£38,500

According to the Land Registry and our network of Estate Agents, there have been 174 sales of properties similar to 20, Aberpennar Street, Mountain Ash within a radius of 610 metres since 2020.

The most recent example is 13, Gorsedd Street, Mountain Ash, CF45 3LR, a freehold house which sold for £155,000 on the 31st March 2026.

Read more about house prices in CF45.

• Sold Mar 2026£155,000 | 3 Bed House13, Gorsedd Street, Mountain Ash, CF45 3LR13, Gorsedd Street, Mountain Ash, CF45 3LR
• Sold Feb 2026£142,500 | 3 Bed HouseAberpennar Cottage, Dover Street, Mountain Ash, CF45 3HYAberpennar Cottage, Dover Street, Mountain Ash, CF45 3HY
• Sold Jul 2025£145,000 | 3 Bed House42, Coplestone Street, Mountain Ash, CF45 3LY42, Coplestone Street, Mountain Ash, CF45 3LY
• Sold Jun 2025£132,500 | 3 Bed House28, Kingcraft Street, Mountain Ash, CF45 3LT28, Kingcraft Street, Mountain Ash, CF45 3LT
• Sold Apr 2025£129,950 | 3 Bed House38, Kingcraft Street, Mountain Ash, CF45 3LT38, Kingcraft Street, Mountain Ash, CF45 3LT
• Sold Feb 2025£122,000 | 3 Bed House21, Darran Road, Mountain Ash, CF45 3HT21, Darran Road, Mountain Ash, CF45 3HT
• Sold Feb 2025£100,000 | 3 Bed House10, Coplestone Street, Mountain Ash, CF45 3LY10, Coplestone Street, Mountain Ash, CF45 3LY
• Sold Feb 2025£73,000 | 3 Bed House4, Coplestone Street, Mountain Ash, CF45 3LY4, Coplestone Street, Mountain Ash, CF45 3LY
• Sold Nov 2024£120,000 | 3 Bed House3, Aberpennar Street, Mountain Ash, CF45 3LS3, Aberpennar Street, Mountain Ash, CF45 3LS
• Sold Aug 2024£105,000 | 3 Bed House43, Aberpennar Street, Mountain Ash, CF45 3LS43, Aberpennar Street, Mountain Ash, CF45 3LS
• Sold Apr 2024£110,000 | 3 Bed House47, Aberpennar Street, Mountain Ash, CF45 3LS47, Aberpennar Street, Mountain Ash, CF45 3LS
• Sold Mar 2024£114,000 | 3 Bed House46, Aberpennar Street, Mountain Ash, CF45 3LS46, Aberpennar Street, Mountain Ash, CF45 3LS
• Sold Nov 2023£159,995 | 3 Bed House1, Gorsedd Street, Mountain Ash, CF45 3LR1, Gorsedd Street, Mountain Ash, CF45 3LR
• Sold Apr 2023£140,000 | 4 Bed House1, Aberpennar Street, Mountain Ash, CF45 3LS1, Aberpennar Street, Mountain Ash, CF45 3LS
• Sold Nov 2022£120,000 | 3 Bed House8, Kingcraft Street, Mountain Ash, CF45 3LT8, Kingcraft Street, Mountain Ash, CF45 3LT
• Sold Oct 2022£130,000 | 3 Bed House16, Kingcraft Street, Mountain Ash, CF45 3LT16, Kingcraft Street, Mountain Ash, CF45 3LT
• Sold Oct 2022£110,000 | 3 Bed House23, Gorsedd Street, Mountain Ash, CF45 3LR23, Gorsedd Street, Mountain Ash, CF45 3LR
• Sold Aug 2022£112,000 | 3 Bed House33, Gorsedd Street, Mountain Ash, CF45 3LR33, Gorsedd Street, Mountain Ash, CF45 3LR
• Sold Mar 2020£87,500 | 3 Bed House2, Aberpennar Street, Mountain Ash, CF45 3LS2, Aberpennar Street, Mountain Ash, CF45 3LS
• Sold Feb 2020£80,500 | 3 Bed House28, Aberpennar Street, Mountain Ash, CF45 3LS28, Aberpennar Street, Mountain Ash, CF45 3LS

Aberpennar Street, Mountain Ash, CF45 has a total of 52 addresses. According to our analysis of all the public data, 20, Aberpennar Street, Mountain Ash is the 27th largest and the 27th most expensive property on the street.

When compared to the postcode district it is £23k less expensive than the average property in CF45.

• Mountain Ash

  |

  400 m away
• Fernhill

  |

  1.3 km away
• Penrhiwceiber

  |

  1.8 km away

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