Our Data Sources
26, John Street, Treharris has no recent1 records in the Land Registry and a single entry in the EPC database dated July 2014.
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.
1Sales dated prior to 2007 are shown, but are not used in our calculations.
Price Range & Condition
In very good condition, we estimate 26, John Street, Treharris would be worth £122,527, with a potential rental value of £824 per month.
If substantial cosmetic improvements are needed, the estimated sale value falls to £108,524, with a rental value of £730 per month.
The extent to which decoration affects a property's value depends on its type, size and location.
Plot Size
26, John Street, Treharris occupies a 129 m2 plot as recorded by HM Land Registry.
Of the 39 other houses in this postcode, 30 have recorded plot sizes, and this one ranks as the 17th largest.
Energy Efficiency
26, John Street, Treharris has an Energy Performance Rating (EPC) of E. This is based on the most recent assessment, dated 23 Jul 2014.
The property is not connected to mains gas and has fully double glazed windows. It is heated using a boiler and radiators (mains gas).
Sold Prices
26, John Street, Treharris last changed hands on 9th August 2006, selling for £79,950. The transaction was logged as a freehold house by HM Land Registry.
In total it has sold twice since 1995.
- Sold Aug 2006£79,950
- Sold Aug 2004£65,000
Similar Properties Sold Nearby
Land Registry records and our Estate Agent network show 118 sales of comparable properties within 700 metres of 26, John Street, Treharris since 2018.
Most recently, 9, Fell Street, Treharris, CF46 5HN, a freehold house, sold at £137,000 on the 1st May 2026.
Read more about house prices in CF46.
- Sold May 2026£137,000 | 3 Bed House9, Fell Street, Treharris, CF46 5HN9, Fell Street, Treharris, CF46 5HN
- Sold Nov 2025£117,500 | 3 Bed House10, John Street, Treharris, CF46 5PS10, John Street, Treharris, CF46 5PS
- Sold Sep 2025£75,000 | 3 Bed House15, Bargoed Terrace, Treharris, CF46 5RB15, Bargoed Terrace, Treharris, CF46 5RB
- Sold Aug 2025£71,000 | 3 Bed House36, Perrott Street, Treharris, CF46 5ER36, Perrott Street, Treharris, CF46 5ER
- Sold Jul 2025£110,000 | 3 Bed House25, Penn Street, Treharris, CF46 5HL25, Penn Street, Treharris, CF46 5HL
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 £144,927, ranging from £119,663 to £199,675.
- 25 John Street
3 Bed House | 5 m | Est. Value: £119,663
- 24 John Street
3 Bed House | 9 m | Est. Value: £132,917
- Elim House
5 Bed House | 14 m | Est. Value: £199,675
- 23 John Street
3 Bed House | 15 m | Est. Value: £127,649
- 22 John Street
3 Bed House | 19 m | Est. Value: £122,122
Location Comparison
Our analysis of the public data ranks 26, John Street, Treharris as the 39th largest and the 38th most expensive of the 39 addresses on John Street, Treharris, CF46.
Against the CF46 postcode district average, it is £44k less expensive than the typical property.
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
Ofcom's latest figures show superfast broadband available in this area.
According to recent data from Ofcom, Superfast Broadband available in this area.
Risk of Flooding
Environment Agency data suggests this area has a Very Low risk of flooding.












