18, Lon-Y-Celyn, Treharris occupies a 246 m² plot as recorded by HM Land Registry.

Of the 52 other houses in this postcode, 51 have recorded plot sizes, and this one ranks as the 32nd largest.

18, Lon-Y-Celyn, Treharris has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 01 Mar 2017.

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

Land Registry records and our Estate Agent network show 28 sales of comparable properties within 820 metres of 18, Lon-Y-Celyn, Treharris since 2009.

Most recently, 17, Ashgrove Terrace, Treharris, CF46 6LS, a freehold house, sold at £249,950 on the 29th August 2025.

Read more about house prices in CF46.

• Sold Aug 2025£249,950 | 3 Bed House17, Ashgrove Terrace, Treharris, CF46 6LS17, Ashgrove Terrace, Treharris, CF46 6LS
• Sold Dec 2024£222,500 | 3 Bed House41, Tawel Fan, Treharris, CF46 6EH41, Tawel Fan, Treharris, CF46 6EH
• Sold Dec 2024£225,000 | 3 Bed House16, Ashgrove Terrace, Treharris, CF46 6LS16, Ashgrove Terrace, Treharris, CF46 6LS
• Sold Oct 2024£207,500 | 2 Bed House3A, The Oaks, Treharris, CF46 5HQ3A, The Oaks, Treharris, CF46 5HQ
• Sold Oct 2023£203,000 | 3 Bed House34, Tawel Fan, Treharris, CF46 6EH34, Tawel Fan, Treharris, CF46 6EH
• Sold Mar 2022£118,000 | 3 Bed House30, Commercial Street, Treharris, CF46 6NF30, Commercial Street, Treharris, CF46 6NF
• Sold Sep 2021£195,000 | 3 Bed House54, Tawel Fan, Treharris, CF46 6EH54, Tawel Fan, Treharris, CF46 6EH
• Sold Jan 2020£54,129 | 3 Bed House42, Tawel Fan, Treharris, CF46 6EH42, Tawel Fan, Treharris, CF46 6EH
• Sold Nov 2019£139,995 | 3 Bed House53, Tawel Fan, Treharris, CF46 6EH53, Tawel Fan, Treharris, CF46 6EH
• Sold Jun 2018£143,000 | 3 Bed House41, Heol Tasker, Treharris, CF46 6JB41, Heol Tasker, Treharris, CF46 6JB
• Sold Jun 2017£110,000 | 3 Bed House33, Ffos Y Cerridden, Treharris, CF46 6HQ33, Ffos Y Cerridden, Treharris, CF46 6HQ
• Sold Jun 2017£102,000 | 3 Bed House31, Ffos Y Cerridden, Treharris, CF46 6HQ31, Ffos Y Cerridden, Treharris, CF46 6HQ
• Sold Dec 2016£145,000 | 3 Bed House66, Tawel Fan, Treharris, CF46 6EH66, Tawel Fan, Treharris, CF46 6EH
• Sold Nov 2014£135,000 | 2 Bed House14, Ashgrove Terrace, Treharris, CF46 6LS14, Ashgrove Terrace, Treharris, CF46 6LS
• Sold Nov 2013£149,000 | 3 Bed House55, Ashgrove Terrace, Treharris, CF46 6LS55, Ashgrove Terrace, Treharris, CF46 6LS
• Sold Sep 2012£89,250 | 3 Bed House32, Tawel Fan, Treharris, CF46 6EH32, Tawel Fan, Treharris, CF46 6EH
• Sold Jun 2012£82,000 | 3 Bed House44, Tawel Fan, Treharris, CF46 6EH44, Tawel Fan, Treharris, CF46 6EH
• Sold Dec 2011£135,000 | 3 Bed House19, Ashgrove Terrace, Treharris, CF46 6LS19, Ashgrove Terrace, Treharris, CF46 6LS
• Sold Jun 2011£138,000 | 3 Bed House43, Ashgrove Terrace, Treharris, CF46 6LS43, Ashgrove Terrace, Treharris, CF46 6LS
• Sold Nov 2009£110,000 | 3 Bed House47, Tawel Fan, Treharris, CF46 6EH47, Tawel Fan, Treharris, CF46 6EH

Our analysis of the public data ranks 18, Lon-Y-Celyn, Treharris as the 44th largest and the 44th most expensive of the 52 addresses on Lon-Y-Celyn, Nelson, Treharris, CF46.

Against the CF46 postcode district average, it is £58k more expensive than the typical property.

• Quakers Yard

  |

  2.4 km away
• Abercynon

  |

  2.8 km away
• Ystrad Mynach

  |

  3.7 km away

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