According to data from HM Land Registry, 29, Heol Isaf, Treharris sits on a plot of 328 m².

We have plot size data on 35 out of 35 other houses in the postcode and 29, Heol Isaf, Treharris sits on the 20th largest plot.

29, Heol Isaf, Treharris has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 21 Jul 2017.

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, 29, Heol Isaf, Treharris was last sold on 29th September 2017 for £145,000 and was recorded as a freehold house.

The property has only had this single sale since 1995.

Since September 2017, the market for similar properties has risen by 9.1%.

• Sold Sep 2017£145,000

According to the Land Registry and our network of Estate Agents, there have been 139 sales of properties similar to 29, Heol Isaf, Treharris within a radius of 1.2 kilometres since 2007.

The most recent example is 65, Tawel Fan, Treharris, CF46 6EH, a freehold house which sold for £264,000 on the 24th April 2026.

Read more about house prices in CF46.

• Sold Apr 2026£264,000 | 3 Bed House65, Tawel Fan, Treharris, CF46 6EH65, Tawel Fan, Treharris, CF46 6EH
• Sold Mar 2026£240,000 | 3 Bed House24, Heol Isaf, Treharris, CF46 6NS24, Heol Isaf, Treharris, CF46 6NS
• Sold Oct 2025£335,000 | 3 Bed House12, Heol Uchaf, Treharris, CF46 6NT12, Heol Uchaf, Treharris, CF46 6NT
• Sold Oct 2025£255,000 | 3 Bed House49, Beech Tree Way, Treharris, CF46 6NU49, Beech Tree Way, Treharris, CF46 6NU
• Sold Aug 2025£260,000 | 3 Bed House14, Heol Uchaf, Treharris, CF46 6NT14, Heol Uchaf, Treharris, CF46 6NT
• Sold Nov 2024£200,000 | 3 Bed House16, Beech Tree Way, Treharris, CF46 6NU16, Beech Tree Way, Treharris, CF46 6NU
• Sold May 2024£160,000 | 3 Bed House12, Mountain Way, Treharris, CF46 6NY12, Mountain Way, Treharris, CF46 6NY
• Sold Nov 2023£213,675 | 3 Bed House21, Ashgrove Terrace, Treharris, CF46 6LS21, Ashgrove Terrace, Treharris, CF46 6LS
• Sold Aug 2023£190,000 | 3 Bed House12, Hawthorn Road, Treharris, CF46 6PB12, Hawthorn Road, Treharris, CF46 6PB
• Sold Oct 2022£200,000 | 3 Bed House2, Beech Tree Way, Treharris, CF46 6NU2, Beech Tree Way, Treharris, CF46 6NU
• Sold Oct 2022£78,000 | 3 Bed House8, Heol Isaf, Treharris, CF46 6NS8, Heol Isaf, Treharris, CF46 6NS
• Sold Sep 2022£245,000 | 3 Bed House15, Heol Isaf, Treharris, CF46 6NS15, Heol Isaf, Treharris, CF46 6NS
• Sold Sep 2022£245,000 | 3 Bed House25, Heol Uchaf, Treharris, CF46 6NT25, Heol Uchaf, Treharris, CF46 6NT
• Sold Aug 2022£229,950 | 3 Bed House9, Beech Tree Way, Treharris, CF46 6NU9, Beech Tree Way, Treharris, CF46 6NU
• Sold May 2021£175,000 | 3 Bed House20, Mountain Way, Treharris, CF46 6NY20, Mountain Way, Treharris, CF46 6NY
• Sold Mar 2021£204,000 | 3 Bed House6, Heol Isaf, Treharris, CF46 6NS6, Heol Isaf, Treharris, CF46 6NS
• Sold Jul 2016£133,000 | 3 Bed House9, Mountain Way, Treharris, CF46 6NY9, Mountain Way, Treharris, CF46 6NY
• Sold Aug 2014£156,000 | 3 Bed House21, Heol Isaf, Treharris, CF46 6NS21, Heol Isaf, Treharris, CF46 6NS
• Sold May 2014£125,000 | 3 Bed House20, Heol Isaf, Treharris, CF46 6NS20, Heol Isaf, Treharris, CF46 6NS
• Sold Oct 2007£109,000 | 3 Bed House30, Heol Isaf, Treharris, CF46 6NS30, Heol Isaf, Treharris, CF46 6NS

Heol Isaf, Nelson, Treharris, CF46 has a total of 35 addresses. According to our analysis of all the public data, 29, Heol Isaf, Treharris is the 21st largest and the 21st most expensive property on the street.

When compared to the postcode district it is £80k 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.