According to data from HM Land Registry, 1, Heol Isaf, Treharris sits on a plot of 287 m².

We have plot size data on 35 out of 35 other houses in the postcode and 1, Heol Isaf, Treharris sits on the 29th largest plot.

1, Heol Isaf, Treharris has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 18 Feb 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 HM Land Registry, 1, Heol Isaf, Treharris was last sold on 8th June 2012 for £95,000 and was recorded as a freehold house.

The property has only had this single sale since 1995.

Since June 2012, the market for similar properties has risen by 23.1%.

• Sold Jun 2012£95,000

According to the Land Registry and our network of Estate Agents, there have been 133 sales of properties similar to 1, Heol Isaf, Treharris within a radius of 1.1 kilometres since 2009.

The most recent example is 61, Tawel Fan, Treharris, CF46 6EH, a freehold house which sold for £259,950 on the 4th February 2026.

Read more about house prices in CF46.

• Sold Feb 2026£259,950 | 3 Bed House61, Tawel Fan, Treharris, CF46 6EH61, Tawel Fan, Treharris, CF46 6EH
• Sold Jan 2026£190,000 | 3 Bed House2, Ffos Y Cerridden, Treharris, CF46 6HQ2, Ffos Y Cerridden, Treharris, CF46 6HQ
• Sold Jan 2026£172,500 | 3 Bed House41, Beech Tree Way, Treharris, CF46 6NU41, Beech Tree Way, Treharris, CF46 6NU
• Sold Aug 2025£249,950 | 3 Bed House17, Ashgrove Terrace, Treharris, CF46 6LS17, Ashgrove Terrace, Treharris, CF46 6LS
• Sold Apr 2025£227,000 | 3 Bed House45, Ashgrove Terrace, Treharris, CF46 6LS45, Ashgrove Terrace, Treharris, CF46 6LS
• Sold Dec 2024£225,000 | 3 Bed House16, Ashgrove Terrace, Treharris, CF46 6LS16, Ashgrove Terrace, Treharris, CF46 6LS
• Sold Nov 2024£200,000 | 3 Bed House16, Beech Tree Way, Treharris, CF46 6NU16, Beech Tree Way, Treharris, CF46 6NU
• Sold Dec 2023£170,000 | 3 Bed House23, Beech Tree Way, Treharris, CF46 6NU23, Beech Tree Way, Treharris, CF46 6NU
• Sold Nov 2023£213,675 | 3 Bed House21, Ashgrove Terrace, Treharris, CF46 6LS21, Ashgrove Terrace, Treharris, CF46 6LS
• Sold Nov 2022£220,000 | 3 Bed House31, Heol Isaf, Treharris, CF46 6NS31, Heol Isaf, Treharris, CF46 6NS
• Sold Sep 2022£75,000 | 3 Bed House25, Beech Tree Way, Treharris, CF46 6NU25, Beech Tree Way, Treharris, CF46 6NU
• Sold Aug 2022£212,000 | 3 Bed House11, Heol Isaf, Treharris, CF46 6NS11, Heol Isaf, Treharris, CF46 6NS
• Sold Aug 2022£229,950 | 3 Bed House9, Beech Tree Way, Treharris, CF46 6NU9, Beech Tree Way, Treharris, CF46 6NU
• Sold Apr 2022£225,000 | 2 Bed House15, Beech Tree Way, Treharris, CF46 6NU15, Beech Tree Way, Treharris, CF46 6NU
• Sold Oct 2020£180,000 | 3 Bed House23, Ashgrove Terrace, Treharris, CF46 6LS23, Ashgrove Terrace, Treharris, CF46 6LS
• Sold Aug 2019£147,950 | 3 Bed House8, Beech Tree Way, Treharris, CF46 6NU8, Beech Tree Way, Treharris, CF46 6NU
• Sold Sep 2015£92,000 | 3 Bed House10, Beech Tree Way, Treharris, CF46 6NU10, Beech Tree Way, Treharris, CF46 6NU
• Sold Jul 2015£120,000 | 3 Bed House21, Beech Tree Way, Treharris, CF46 6NU21, Beech Tree Way, Treharris, CF46 6NU
• Sold Dec 2014£125,000 | 3 Bed House95, Heol Fawr, Treharris, CF46 6NP95, Heol Fawr, Treharris, CF46 6NP
• Sold Jul 2009£125,000 | 3 Bed House19, Beech Tree Way, Treharris, CF46 6NU19, Beech Tree Way, Treharris, CF46 6NU

Heol Isaf, Nelson, Treharris, CF46 has a total of 35 addresses. According to our analysis of all the public data, 1, Heol Isaf, Treharris is the 32nd largest and the 31st most expensive property on the street.

When compared to the postcode district it is £58k more expensive than the average property in CF46.

• Ystrad Mynach

  |

  2.7 km away
• Quakers Yard

  |

  3.4 km away
• Abercynon

  |

  3.4 km away

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