According to data from HM Land Registry, 11, Rock Street, Mountain Ash sits on a plot of 111 m².

We have plot size data on 21 out of 23 other houses in the postcode and 11, Rock Street, Mountain Ash sits on the 14th largest plot.

11, Rock Street, Mountain Ash has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 28 Apr 2021.

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 232 sales of properties similar to 11, Rock Street, Mountain Ash within a radius of 580 metres since 2016.

The most recent example is 26, Woodland Terrace, Mountain Ash, CF45 3RF, a freehold house which sold for £130,000 on the 1st May 2026.

Read more about house prices in CF45.

• Sold May 2026£130,000 | 3 Bed House26, Woodland Terrace, Mountain Ash, CF45 3RF26, Woodland Terrace, Mountain Ash, CF45 3RF
• Sold Apr 2026£95,000 | 3 Bed House16, Lyle Street, Mountain Ash, CF45 3RG16, Lyle Street, Mountain Ash, CF45 3RG
• Sold Jan 2026£125,000 | 3 Bed House67, Brynifor, Mountain Ash, CF45 3AB67, Brynifor, Mountain Ash, CF45 3AB
• Sold Nov 2025£115,000 | 3 Bed House81, Duffryn Street, Mountain Ash, CF45 3HR81, Duffryn Street, Mountain Ash, CF45 3HR
• Sold Jul 2025£115,000 | 3 Bed House9, Cadwaladr Street, Mountain Ash, CF45 3RD9, Cadwaladr Street, Mountain Ash, CF45 3RD
• Sold Jan 2025£112,500 | 3 Bed House4, Caradoc Street, Mountain Ash, CF45 3LB4, Caradoc Street, Mountain Ash, CF45 3LB
• Sold Oct 2024£127,500 | 3 Bed House74, Duffryn Street, Mountain Ash, CF45 3HR74, Duffryn Street, Mountain Ash, CF45 3HR
• Sold Oct 2024£55,000 | 3 Bed House39, Dover Street, Mountain Ash, CF45 3HU39, Dover Street, Mountain Ash, CF45 3HU
• Sold May 2024£112,000 | 3 Bed House7, Rock Street, Mountain Ash, CF45 3LP7, Rock Street, Mountain Ash, CF45 3LP
• Sold Mar 2024£110,000 | 3 Bed House13, Lyle Street, Mountain Ash, CF45 3RG13, Lyle Street, Mountain Ash, CF45 3RG
• Sold Sep 2023£123,500 | 3 Bed House62, Brynifor, Mountain Ash, CF45 3AB62, Brynifor, Mountain Ash, CF45 3AB
• Sold Aug 2023£60,000 | 3 Bed House7, Cliff Street, Mountain Ash, CF45 3LE7, Cliff Street, Mountain Ash, CF45 3LE
• Sold Jul 2023£85,000 | 3 Bed House82, Duffryn Street, Mountain Ash, CF45 3HR82, Duffryn Street, Mountain Ash, CF45 3HR
• Sold Feb 2023£95,000 | 3 Bed House14, Cliff Street, Mountain Ash, CF45 3LE14, Cliff Street, Mountain Ash, CF45 3LE
• Sold May 2022£75,000 | 3 Bed House75, Duffryn Street, Mountain Ash, CF45 3HR75, Duffryn Street, Mountain Ash, CF45 3HR
• Sold Mar 2021£78,000 | 3 Bed House73, Duffryn Street, Mountain Ash, CF45 3HR73, Duffryn Street, Mountain Ash, CF45 3HR
• Sold Feb 2021£68,000 | 3 Bed House58, Duffryn Street, Mountain Ash, CF45 3HR58, Duffryn Street, Mountain Ash, CF45 3HR
• Sold Dec 2019£40,600 | 3 Bed House79, Duffryn Street, Mountain Ash, CF45 3HR79, Duffryn Street, Mountain Ash, CF45 3HR
• Sold Jan 2019£79,500 | 3 Bed House20, Darran Road, Mountain Ash, CF45 3HT20, Darran Road, Mountain Ash, CF45 3HT
• Sold Jul 2016£61,400 | 3 Bed House18, Darran Road, Mountain Ash, CF45 3HT18, Darran Road, Mountain Ash, CF45 3HT

Rock Street, Mountain Ash, CF45 has a total of 23 addresses. According to our analysis of all the public data, 11, Rock Street, Mountain Ash is the 10th largest and the 9th most expensive property on the street.

When compared to the postcode district it is £33k less expensive than the average property in CF45.

• Mountain Ash

  |

  400 m away
• Fernhill

  |

  1.2 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.