21, Llanfabon Road, Treharris occupies a 114 m² plot as recorded by HM Land Registry.

Of the 13 other houses in this postcode, 11 have recorded plot sizes, and this one ranks as the 11th largest.

21, Llanfabon Road, Treharris has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 02 Oct 2025.

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

21, Llanfabon Road, Treharris last changed hands on 22nd October 2015, selling for £95,000. 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 11.1% since October 2015.

Land Registry records and our Estate Agent network show 89 sales of comparable properties within 1.2 kilometres of 21, Llanfabon Road, Treharris since 2015.

Most recently, 7, Donald Street, Treharris, CF46 6EB, a freehold house, sold at £179,950 on the 27th February 2026.

Read more about house prices in CF46.

• Sold Feb 2026£179,950 | 3 Bed House7, Donald Street, Treharris, CF46 6EB7, Donald Street, Treharris, CF46 6EB
• Sold Aug 2024£69,250 | 3 Bed House3, Heol Morien, Treharris, CF46 6JA3, Heol Morien, Treharris, CF46 6JA
• Sold Sep 2023£190,000 | 3 Bed House11, Ashgrove Terrace, Treharris, CF46 6LR11, Ashgrove Terrace, Treharris, CF46 6LR
• Sold Feb 2023£225,000 | 3 Bed House5, Heol Bryn Fab, Treharris, CF46 6JF5, Heol Bryn Fab, Treharris, CF46 6JF
• Sold Nov 2022£145,000 | 3 Bed House97, Bryncelyn, Treharris, CF46 6HL97, Bryncelyn, Treharris, CF46 6HL
• Sold Oct 2021£230,000 | 3 Bed House18, Ffos Y Cerridden, Treharris, CF46 6HQ18, Ffos Y Cerridden, Treharris, CF46 6HQ
• Sold Aug 2021£210,000 | 3 Bed House35, High Close, Treharris, CF46 6HJ35, High Close, Treharris, CF46 6HJ
• Sold Jul 2021£150,000 | 3 Bed House16, Llwyncelyn Terrace, Treharris, CF46 6HF16, Llwyncelyn Terrace, Treharris, CF46 6HF
• Sold Feb 2021£130,000 | 3 Bed House57, Bryncelyn, Treharris, CF46 6HL57, Bryncelyn, Treharris, CF46 6HL
• Sold Oct 2020£155,000 | 3 Bed House40, Heol Tasker, Treharris, CF46 6JB40, Heol Tasker, Treharris, CF46 6JB
• Sold Apr 2020£158,000 | 3 Bed House4, Heol Tasker, Treharris, CF46 6JB4, Heol Tasker, Treharris, CF46 6JB
• Sold Nov 2019£147,750 | 3 Bed House6, Llwyncelyn Terrace, Treharris, CF46 6HF6, Llwyncelyn Terrace, Treharris, CF46 6HF
• Sold Oct 2019£144,500 | 3 Bed House28, Llwyncelyn Terrace, Treharris, CF46 6HF28, Llwyncelyn Terrace, Treharris, CF46 6HF
• Sold Aug 2019£107,000 | 4 Bed House9, High Street, Treharris, CF46 6EU9, High Street, Treharris, CF46 6EU
• Sold Mar 2019£140,000 | 3 Bed House19, High Street, Treharris, CF46 6EU19, High Street, Treharris, CF46 6EU
• Sold Jun 2018£186,000 | 3 Bed House106, High Street, Treharris, CF46 6HB106, High Street, Treharris, CF46 6HB
• Sold Aug 2017£164,000 | 3 Bed House36, Ffos Y Cerridden, Treharris, CF46 6HQ36, Ffos Y Cerridden, Treharris, CF46 6HQ
• Sold Mar 2017£150,000 | 3 Bed House31, Llwyncelyn Terrace, Treharris, CF46 6HF31, Llwyncelyn Terrace, Treharris, CF46 6HF
• Sold Mar 2016£122,000 | 3 Bed House8, Bryncelyn, Treharris, CF46 6HN8, Bryncelyn, Treharris, CF46 6HN
• Sold Aug 2015£111,000 | 3 Bed House7, Bryncelyn, Treharris, CF46 6HL7, Bryncelyn, Treharris, CF46 6HL

Our analysis of the public data ranks 21, Llanfabon Road, Treharris as the 6th largest and the 6th most expensive of the 13 addresses on Llanfabon Road, Nelson, Treharris, CF46.

Against the CF46 postcode district average, it is £60k more expensive than the typical property.

• Abercynon

  |

  2.3 km away
• Quakers Yard

  |

  2.5 km away
• Ystrad Mynach

  |

  3.7 km away

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