Our Data Sources
31, Heol Islwyn, Treharris has no records in the Land Registry and a single entry in the EPC database dated September 2018.
We combine this information with public data of neighbouring properties to estimate the property attributes and values.
The local information is scored as 3 out of 5 and is considered of medium accuracy.
Price Range & Condition
Decorative condition can have a big effect on a property's value and this effect varies depending on the type, size and location of the property.
If 31, Heol Islwyn, Treharris is in very good condition we estimate a sale value of £119,533 and a rental value of £806 per month.
However, if the property needs a lot of cosmetic work we estimate a sale value of £105,872 and a rental value of £714 per month.
Energy Efficiency
31, Heol Islwyn, Treharris has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 17 Sep 2018.
The property is connected to mains gas and has fully double glazed windows. It is heated using a boiler and radiators (mains gas).
Similar Properties Sold Nearby
According to the Land Registry and our network of Estate Agents, there have been 12 sales of properties similar to 31, Heol Islwyn, Treharris within a radius of 940 metres since 2007.
The most recent example is 1, Thomas Street, Treharris, CF46 6NG, a freehold house which sold for £119,950 on the 22nd April 2025.
Read more about house prices in CF46.
- Sold Apr 2025£119,950 | 3 Bed House1, Thomas Street, Treharris, CF46 6NG1, Thomas Street, Treharris, CF46 6NG
- Sold Apr 2025£150,000 | 3 Bed House3, Thomas Street, Treharris, CF46 6NG3, Thomas Street, Treharris, CF46 6NG
- Sold Oct 2021£67,000 | 3 Bed House4, Thomas Street, Treharris, CF46 6NG4, Thomas Street, Treharris, CF46 6NG
- Sold Nov 2019£81,000 | 3 Bed House20, Ynys Las, Treharris, CF46 6LE20, Ynys Las, Treharris, CF46 6LE
- Sold May 2019£70,000 | 3 Bed House23, Ynys Las, Treharris, CF46 6LE23, Ynys Las, Treharris, CF46 6LE
Nearby is defined as the radius comprising the nearest 2,000 addresses.
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Explore Nearby Properties
The surrounding properties have an average estimated value of £93,873, ranging from £81,906 to £114,506.
- 30 Heol Islwyn
3 Bed House | 26 m | Est. Value: £114,506
- 5 Heol Islwyn
3 Bed House | 34 m | Est. Value: £98,615
- 4 Heol Islwyn
2 Bed House | 35 m | Est. Value: £86,669
- 11 Heol Islwyn
3 Bed House | 35 m | Est. Value: £99,251
- 12 Heol Islwyn
2 Bed House | 36 m | Est. Value: £87,591
Location Comparison
Heol Islwyn, Nelson, Treharris, CF46 has a total of 32 addresses. According to our analysis of all the public data, 31, Heol Islwyn, Treharris is the 3rd largest and the 3rd most expensive property on the street.
When compared to the postcode district it is £49k less expensive than the average property in CF46.
More reading links
Schools Nearby
Public Transport Nearby
- Abercynon|2.7 km away
- Quakers Yard|2.7 km away
- Ystrad Mynach|3.4 km away
Available Internet Speeds
According to recent data from Ofcom, Superfast Broadband is available in this area.
According to recent data from Ofcom, Superfast Broadband available in this area.
Risk of Flooding
According to data from the Environment Agency, the flood risk in this area is considered to be Very Low.
