Our Data Sources
14, John Street, Treharris has a single entry in the Land Registry from August 2009 and a single entry in the EPC database dated April 2009.
We combine this information with that 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
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 14, John Street, Treharris, we estimate a market value of £146,932 and a rental value of £889 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £130,140 and £788 per month respectively.
Plot Size
HM Land Registry records the plot of land for 14, John Street, Treharris as measuring 162 m2.
That makes it the 9th largest plot in the postcode, where 30 of the 39 other houses have recorded plot data.
Energy Efficiency
14, John Street, Treharris has an Energy Performance Rating (EPC) of F. This is based on the most recent assessment, dated 02 Apr 2009.
The property is connected to mains gas and has single and multiple glazing. It is heated using a boiler and radiators (mains gas).
Sold Prices
The most recent sale of 14, John Street, Treharris completed on 21st August 2009 at £58,100 and was recorded by HM Land Registry as a freehold house.
Since 1995 this is the property's only sale.
Values of comparable properties have risen by 98.7% over the period since August 2009.
- Sold Aug 2009£58,100
Similar Properties Sold Nearby
Since 2019 189 properties similar to 14, John Street, Treharris have sold within a radius of 680 metres, per the Land Registry and our network of Estate Agents.
The latest, on the 27th March 2026, was 41, Thornwood Place, Treharris, CF46 5AB, a freehold house which sold for £129,995.
Read more about house prices in CF46.
- Sold Mar 2026£129,995 | 3 Bed House41, Thornwood Place, Treharris, CF46 5AB41, Thornwood Place, Treharris, CF46 5AB
- Sold Jan 2026£110,000 | 3 Bed House25, Thornwood Place, Treharris, CF46 5AB25, Thornwood Place, Treharris, CF46 5AB
- Sold Dec 2025£118,000 | 3 Bed House40, Brynteg, Treharris, CF46 5RE40, Brynteg, Treharris, CF46 5RE
- Sold Nov 2025£153,000 | 3 Bed House38, Thornwood Place, Treharris, CF46 5AB38, Thornwood Place, Treharris, CF46 5AB
- Sold Nov 2025£120,000 | 3 Bed House20, Fell Street, Treharris, CF46 5HN20, Fell Street, Treharris, CF46 5HN
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 £143,339, ranging from £115,433 to £199,675.
- 13 John Street
3 Bed House | 8 m | Est. Value: £126,098
- 12 John Street
3 Bed House | 15 m | Est. Value: £128,416
- 16 John Street
5 Bed House | 21 m | Est. Value: £193,069
- 29 John Street
3 Bed House | 22 m | Est. Value: £129,179
- 10 John Street
3 Bed House | 24 m | Est. Value: £115,433
Location Comparison
Of the 39 addresses on John Street, Treharris, CF46, 14, John Street, Treharris comes out as the 11th largest and the 10th most expensive in our analysis of the public data.
It is also £20k less expensive than the average property across the CF46 district.
More reading links
Schools Nearby
Public Transport Nearby
- Quakers Yard|1.3 km away
- Abercynon|2.6 km away
- Merthyr Vale|3.3 km away
Available Internet Speeds
Broadband here reaches superfast speeds, based on recent Ofcom data.
According to recent data from Ofcom, Superfast Broadband available in this area.
Risk of Flooding
The flood risk here is rated Very Low, based on Environment Agency data.












