Our Data Sources
3, Lon-Y-Llwyn, Treharris has no records in the the Land Registry and a single entry in the EPC database dated April 2023.
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
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 3, Lon-Y-Llwyn, Treharris is in very good condition we estimate a sale value of £228,942 and a rental value of £1,182 per month.
However, if the property needs a lot of cosmetic work we estimate a sale value of £202,777 and a rental value of £1,047 per month.
Plot Size
According to data from HM Land Registry, 3, Lon-Y-Llwyn, Treharris sits on a plot of 154 m2.
We have plot size data on 12 out of 12 other houses in the postcode and 3, Lon-Y-Llwyn, Treharris sits on the 11th largest plot.
Energy Efficiency
3, Lon-Y-Llwyn, Treharris has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 17 Apr 2023.
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
According to the Land Registry and our network of Estate Agents, there have been 3 sales of properties similar to 3, Lon-Y-Llwyn, Treharris within a radius of 830 metres over the last 2 years.
The most recent example is 11, Clos Cae Pwll, Treharris, CF46 6LA, a freehold house which sold for £245,000 on the 19th December 2025.
Read more about house prices in CF46.
- Sold Dec 2025£245,000 | 3 Bed House11, Clos Cae Pwll, Treharris, CF46 6LA11, Clos Cae Pwll, Treharris, CF46 6LA
- Sold Dec 2024£222,500 | 3 Bed House41, Tawel Fan, Treharris, CF46 6EH41, Tawel Fan, Treharris, CF46 6EH
- Sold Oct 2023£203,000 | 3 Bed House34, Tawel Fan, Treharris, CF46 6EH34, Tawel Fan, Treharris, CF46 6EH
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Location Comparison
Lon-Y-Llwyn, Nelson, Treharris, CF46 has a total of 12 addresses. According to our analysis of all the public data, 3, Lon-Y-Llwyn, Treharris is the 11th largest and the 11th most expensive property on the street.
When compared to the postcode district it is £60k more expensive than the average property in CF46.
More reading links
Schools Nearby
Public Transport Nearby
- 2.3kmQuakers Yard
- 2.7kmAbercynon
- 3.7kmYstrad Mynach
Available Internet Speeds
According to recent data from Ofcom, superfast broadband is available in this area.
According to recent data from Ofcom, Superfast broadband is available in the area.
Risk of Flooding
According to data from the Environment Agency, the flood risk in this area is considered to be very low.












