Our Data Sources
21, High Street, Treharris has 31 entries in the Land Registry , most recently in December 2022 and a single entry in the EPC database dated October 2014.
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.
Price Range & Condition
The condition of a property plays an important role in determining its value, with the degree of impact varying by property type, size and location.
For 21, High Street, Treharris, we estimate a market value of £134,652 and a rental value of £833 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £119,263 and £737 per month respectively.
Plot Size
HM Land Registry records the plot of land for 21, High Street, Treharris as measuring 120 m2.
That makes it the 16th largest plot in the postcode, where 43 of the 48 other houses have recorded plot data.
Energy Efficiency
21, High Street, Treharris has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 07 Oct 2014.
The property is not connected to mains gas and has partial double glazing. It is heated using Boiler and radiators, mains gas.
Sold Prices
The most recent sale of 21, High Street, Treharris completed on 20th December 2022 at £135,000 and was recorded by HM Land Registry as a freehold house.
Since 1995 the property has sold 3 times.
Values of comparable properties have dropped by 5.6% over the period since December 2022.
- Sold Dec 2022£135,000
- Sold Jul 2012£70,000
- Sold Jul 2003£30,000
Similar Properties Sold Nearby
Over the past 2 years 3 properties similar to 21, High Street, Treharris have sold within a radius of 850 metres, per the Land Registry and our network of Estate Agents.
The latest, on the 27th October 2025, was 63, High Street, Treharris, CF46 6AD, a freehold house which sold for £151,000.
Read more about house prices in CF46.
- Sold Oct 2025£151,000 | 3 Bed House63, High Street, Treharris, CF46 6AD63, High Street, Treharris, CF46 6AD
- Sold Oct 2025£115,000 | 3 Bed House12, Bontnewydd Terrace, Treharris, CF46 6AF12, Bontnewydd Terrace, Treharris, CF46 6AF
- Sold Nov 2023£142,000 | 3 Bed House73, High Street, Treharris, CF46 6AD73, High Street, Treharris, CF46 6AD
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Location Comparison
Of the 111 addresses on High Street, Trelewis, Treharris, CF46, 21, High Street, Treharris comes out as the 92nd largest and the 98th most expensive in our analysis of the public data.
It is also £30k less expensive than the average property across the CF46 district.
More reading links
Schools Nearby
Public Transport Nearby
- 1.9kmQuakers Yard
- 3.3kmAbercynon
- 3.3kmMerthyr Vale
Available Internet Speeds
Broadband here reaches superfast speeds, based on recent Ofcom data.
According to recent data from Ofcom, Superfast broadband is available in the area.
Risk of Flooding
The flood risk here is rated very low, based on Environment Agency data.












