Our Data Sources
6, Heol Isaf, Treharris has 21 entries in the Land Registry, most recently in March 2021 and a single entry in the EPC database dated March 2025.
We combine this information with that of neighbouring properties to estimate the property attributes and values.
The local information is scored as 4 out of 5 and is considered of high accuracy.
1Sales dated prior to 2007 are shown, but are not used in our calculations.
Price Range & Condition
In very good condition, we estimate 6, Heol Isaf, Treharris would be worth £252,223, with a potential rental value of £1,253 per month.
If substantial cosmetic improvements are needed, the estimated sale value falls to £223,398, with a rental value of £1,110 per month.
The extent to which decoration affects a property's value depends on its type, size and location.
Plot Size
6, Heol Isaf, Treharris occupies a 296 m2 plot as recorded by HM Land Registry.
All 35 other houses in this postcode have recorded plot sizes, and this one ranks as the 26th largest.
Energy Efficiency
6, Heol Isaf, Treharris has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 31 Mar 2025.
The property is connected to mains gas and has fully double glazed windows. It is heated using a boiler and radiators (mains gas).
Sold Prices
6, Heol Isaf, Treharris last changed hands on 19th March 2021, selling for £204,000. The transaction was logged as a freehold house by HM Land Registry.
In total it has sold twice since 1995.
The market for similar properties has dropped by 10.3% since March 2021.
- Sold Mar 2021£204,000
- Sold Jul 1996£48,000
Similar Properties Sold Nearby
Land Registry records and our Estate Agent network show 140 sales of comparable properties within 1.1 kilometres of 6, Heol Isaf, Treharris since 2011.
Most recently, 65, Tawel Fan, Treharris, CF46 6EH, a freehold house, sold at £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
Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Explore Nearby Properties
The surrounding properties have an average estimated value of £265,994, ranging from £180,370 to £370,638.
- 8 Heol Isaf
3 Bed House | 13 m | Est. Value: £247,493
- 2 Heol Isaf
4 Bed House | 21 m | Est. Value: £304,905
- 7 Heol Isaf
2 Bed House | 38 m | Est. Value: £180,370
- 9 Heol Uchaf
4 Bed House | 42 m | Est. Value: £332,713
- 11 Heol Isaf
3 Bed House | 44 m | Est. Value: £220,440
Location Comparison
Our analysis of the public data ranks 6, Heol Isaf, Treharris as the 22nd largest and the 22nd most expensive of the 35 addresses on Heol Isaf, Nelson, Treharris, CF46.
Against the CF46 postcode district average, it is £80k more expensive than the typical property.
More reading links
Schools Nearby
Public Transport Nearby
- Ystrad Mynach|2.7 km away
- Quakers Yard|3.4 km away
- Abercynon|3.4 km away
Available Internet Speeds
Ofcom's latest figures show superfast broadband available in this area.
According to recent data from Ofcom, Superfast Broadband available in this area.
Risk of Flooding
Environment Agency data suggests this area has a Very Low risk of flooding.
