According to data from HM Land Registry, 18, Caemaen Street, Mountain Ash sits on a plot of 150 m².

We have plot size data on 25 out of 28 other houses in the postcode and 18, Caemaen Street, Mountain Ash sits on the 3rd largest plot.

18, Caemaen Street, Mountain Ash has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 31 Mar 2015.

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 143 sales of properties similar to 18, Caemaen Street, Mountain Ash within a radius of 1.5 kilometres since 2016.

The most recent example is 10, Pentwyn Avenue, Mountain Ash, CF45 4YF, a freehold house which sold for £83,000 on the 22nd April 2026.

Read more about house prices in CF45.

• Sold Apr 2026£83,000 | 3 Bed House10, Pentwyn Avenue, Mountain Ash, CF45 4YF10, Pentwyn Avenue, Mountain Ash, CF45 4YF
• Sold Nov 2025£120,000 | 3 Bed House98, Abercynon Road, Mountain Ash, CF45 4NE98, Abercynon Road, Mountain Ash, CF45 4NE
• Sold Oct 2025£145,000 | 3 Bed House100, Abercynon Road, Mountain Ash, CF45 4NE100, Abercynon Road, Mountain Ash, CF45 4NE
• Sold Aug 2025£121,500 | 3 Bed House22, Park View, Mountain Ash, CF45 4TP22, Park View, Mountain Ash, CF45 4TP
• Sold Oct 2023£95,000 | 3 Bed House243, Abercynon Road, Mountain Ash, CF45 4LU243, Abercynon Road, Mountain Ash, CF45 4LU
• Sold Jan 2023£70,000 | 3 Bed House28, Caemaen Street, Mountain Ash, CF45 4LP28, Caemaen Street, Mountain Ash, CF45 4LP
• Sold Oct 2022£96,500 | 3 Bed House117, Abercynon Road, Mountain Ash, CF45 4NE117, Abercynon Road, Mountain Ash, CF45 4NE
• Sold Jun 2022£90,000 | 3 Bed House231, Abercynon Road, Mountain Ash, CF45 4LU231, Abercynon Road, Mountain Ash, CF45 4LU
• Sold May 2022£115,000 | 3 Bed House210, Abercynon Road, Mountain Ash, CF45 4LU210, Abercynon Road, Mountain Ash, CF45 4LU
• Sold Jan 2022£110,000 | 3 Bed House57, Avondale Street, Mountain Ash, CF45 4YY57, Avondale Street, Mountain Ash, CF45 4YY
• Sold Nov 2021£92,000 | 3 Bed House31, Caemaen Street, Mountain Ash, CF45 4LP31, Caemaen Street, Mountain Ash, CF45 4LP
• Sold Jul 2021£85,000 | 3 Bed House85, Avondale Street, Mountain Ash, CF45 4AJ85, Avondale Street, Mountain Ash, CF45 4AJ
• Sold Dec 2020£75,500 | 3 Bed House244, Abercynon Road, Mountain Ash, CF45 4LU244, Abercynon Road, Mountain Ash, CF45 4LU
• Sold Nov 2020£66,000 | 3 Bed House218, Abercynon Road, Mountain Ash, CF45 4LU218, Abercynon Road, Mountain Ash, CF45 4LU
• Sold Oct 2020£54,000 | 3 Bed House232, Abercynon Road, Mountain Ash, CF45 4LU232, Abercynon Road, Mountain Ash, CF45 4LU
• Sold Jul 2020£70,000 | 3 Bed House27, Caemaen Street, Mountain Ash, CF45 4LP27, Caemaen Street, Mountain Ash, CF45 4LP
• Sold Nov 2018£90,000 | 3 Bed House17, Caemaen Street, Mountain Ash, CF45 4LP17, Caemaen Street, Mountain Ash, CF45 4LP
• Sold Oct 2018£75,000 | 3 Bed House5, Caemaen Street, Mountain Ash, CF45 4LP5, Caemaen Street, Mountain Ash, CF45 4LP
• Sold Nov 2017£48,000 | 3 Bed House203, Abercynon Road, Mountain Ash, CF45 4LU203, Abercynon Road, Mountain Ash, CF45 4LU
• Sold Jul 2016£58,000 | 3 Bed House21, Caemaen Street, Mountain Ash, CF45 4LP21, Caemaen Street, Mountain Ash, CF45 4LP

Caemaen Street, Abercynon, Mountain Ash, CF45 has a total of 28 addresses. According to our analysis of all the public data, 18, Caemaen Street, Mountain Ash is the 8th largest and the 8th most expensive property on the street.

When compared to the postcode district it is £37k less expensive than the average property in CF45.

• Quakers Yard

  |

  1.3 km away
• Abercynon

  |

  1.7 km away
• Penrhiwceiber

  |

  1.9 km away

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