Our Data Sources
1, Lon-Y-Llwyn, Treharris has no records in the the Land Registry and a single entry in the EPC database dated March 2011.
We combine this information with public data of neighbouring properties to estimate the property attributes and values.
The local information is scored as 2 out of 5 and is considered of medium accuracy.
Price Range & Condition
In very good condition, we estimate 1, Lon-Y-Llwyn, Treharris would be worth £299,138, with a potential rental value of £1,405 per month.
If substantial cosmetic improvements are needed, the estimated sale value falls to £264,950, with a rental value of £1,244 per month.
The extent to which decoration affects a property's value depends on its type, size and location.
Plot Size
1, Lon-Y-Llwyn, Treharris occupies a 213 m2 plot as recorded by HM Land Registry.
All 12 other houses in this postcode have recorded plot sizes, and this one ranks as the 8th largest.
Energy Efficiency
1, Lon-Y-Llwyn, Treharris has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 29 Mar 2011.
The property is connected to mains gas and has fully double glazed windows. It is heated using Boiler and radiators, mains gas.
Similar Properties Sold Nearby
Land Registry records and our Estate Agent network show 72 sales of comparable properties within 830 metres of 1, Lon-Y-Llwyn, Treharris across the last 2 years.
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 Oct 2025£208,000 | 3 Bed House25, Tawel Fan, Treharris, CF46 6EH25, Tawel Fan, Treharris, CF46 6EH
- Sold Aug 2025£65,000 | 3 Bed House62, Tawel Fan, Treharris, CF46 6EH62, Tawel Fan, Treharris, CF46 6EH
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Location Comparison
Our analysis of the public data ranks 1, Lon-Y-Llwyn, Treharris as the 7th largest and the 5th most expensive of the 12 addresses on Lon-Y-Llwyn, Nelson, Treharris, CF46.
Against the CF46 postcode district average, it is £124k more expensive than the typical property.
More reading links
Schools Nearby
Public Transport Nearby
- Quakers Yard|2.3 km away
- Abercynon|2.7 km away
- Ystrad Mynach|3.7 km away
Available Internet Speeds
Ofcom's latest figures show superfast broadband available in this area.
According to recent data from Ofcom, Superfast Broadband is available in the area.
Risk of Flooding
Environment Agency data suggests this area has a Very Low risk of flooding.












