21, Cilhaul Terrace, Mountain Ash occupies a 151 m² plot as recorded by HM Land Registry.

Of the 58 other houses in this postcode, 50 have recorded plot sizes, and this one ranks as the 24th largest.

21, Cilhaul Terrace, Mountain Ash has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 21 Feb 2019.

The property is connected to mains gas and has fully double glazed windows. It is heated using a boiler and radiators (mains gas).

21, Cilhaul Terrace, Mountain Ash last changed hands on 25th May 2007, selling for £92,000. The transaction was logged as a freehold house by HM Land Registry.

That is its only recorded sale since 1995.

The market for similar properties has risen by 98.4% since May 2007.

• Sold May 2007£92,000

Land Registry records and our Estate Agent network show 84 sales of comparable properties within 700 metres of 21, Cilhaul Terrace, Mountain Ash since 2008.

Most recently, 9, Clarence Street, Mountain Ash, CF45 3BB, a freehold house, sold at £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 Feb 2026£150,000 | 3 Bed House3, Gwernifor Street, Mountain Ash, CF45 3NA3, Gwernifor Street, Mountain Ash, CF45 3NA
• Sold Aug 2025£110,000 | 3 Bed House10, Cilhaul Terrace, Mountain Ash, CF45 3ND10, Cilhaul Terrace, Mountain Ash, CF45 3ND
• Sold Mar 2025£86,000 | 3 Bed House23, Gwernifor Street, Mountain Ash, CF45 3NA23, Gwernifor Street, Mountain Ash, CF45 3NA
• Sold Nov 2024£165,000 | 3 Bed House16, Gwernifor Street, Mountain Ash, CF45 3NA16, Gwernifor Street, Mountain Ash, CF45 3NA
• Sold Sep 2024£170,000 | 3 Bed House24, Gwernifor Street, Mountain Ash, CF45 3NA24, Gwernifor Street, Mountain Ash, CF45 3NA
• Sold Jun 2024£47,000 | 3 Bed House40, Thomas Street, Mountain Ash, CF45 3BU40, Thomas Street, Mountain Ash, CF45 3BU
• Sold Dec 2023£77,000 | 3 Bed House54, Cilhaul Terrace, Mountain Ash, CF45 3ND54, Cilhaul Terrace, Mountain Ash, CF45 3ND
• Sold Oct 2023£125,000 | 3 Bed House60, Llanwonno Road, Mountain Ash, CF45 3NB60, Llanwonno Road, Mountain Ash, CF45 3NB
• Sold May 2023£115,000 | 3 Bed House40, Oakland Street, Mountain Ash, CF45 3AL40, Oakland Street, Mountain Ash, CF45 3AL
• Sold Mar 2023£120,000 | 3 Bed House4, Gwernifor Street, Mountain Ash, CF45 3NA4, Gwernifor Street, Mountain Ash, CF45 3NA
• Sold Jul 2022£90,000 | 3 Bed House25, Cilhaul Terrace, Mountain Ash, CF45 3ND25, Cilhaul Terrace, Mountain Ash, CF45 3ND
• Sold Jul 2022£133,500 | 3 Bed House17, Ceridwen Street, Mountain Ash, CF45 3LU17, Ceridwen Street, Mountain Ash, CF45 3LU
• Sold Oct 2021£115,000 | 3 Bed House30, Gwernifor Street, Mountain Ash, CF45 3NA30, Gwernifor Street, Mountain Ash, CF45 3NA
• Sold Jul 2021£110,000 | 3 Bed House24, Cilhaul Terrace, Mountain Ash, CF45 3ND24, Cilhaul Terrace, Mountain Ash, CF45 3ND
• Sold Dec 2020£90,000 | 3 Bed House9, Cilhaul Terrace, Mountain Ash, CF45 3ND9, Cilhaul Terrace, Mountain Ash, CF45 3ND
• Sold Oct 2020£85,000 | 4 Bed House53, Cilhaul Terrace, Mountain Ash, CF45 3ND53, Cilhaul Terrace, Mountain Ash, CF45 3ND
• Sold Nov 2019£104,000 | 3 Bed House41, Ceridwen Street, Mountain Ash, CF45 3LU41, Ceridwen Street, Mountain Ash, CF45 3LU
• Sold Aug 2016£105,000 | 3 Bed House12, Gwernifor Street, Mountain Ash, CF45 3NA12, Gwernifor Street, Mountain Ash, CF45 3NA
• Sold Mar 2008£95,000 | 3 Bed House22, Cilhaul Terrace, Mountain Ash, CF45 3ND22, Cilhaul Terrace, Mountain Ash, CF45 3ND

Our analysis of the public data ranks 21, Cilhaul Terrace, Mountain Ash as the 4th largest and the 4th most expensive of the 58 addresses on Cilhaul Terrace, Mountain Ash, CF45.

Against the CF45 postcode district average, it is £3k less expensive than the typical property.

• Mountain Ash

  |

  700 m away
• Penrhiwceiber

  |

  1.4 km away
• Fernhill

  |

  1.8 km away

Environment Agency data suggests this area has a Very Low risk of flooding.