Our Data Sources
21, Heol Uchaf, Treharris has a single entry in the Land Registry from June 2009 and a single entry in the EPC database dated March 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
In very good condition, we estimate 21, Heol Uchaf, Treharris would be worth £304,067, with a potential rental value of £1,455 per month.
If substantial cosmetic improvements are needed, the estimated sale value falls to £269,317, with a rental value of £1,289 per month.
The extent to which decoration affects a property's value depends on its type, size and location.
Plot Size
21, Heol Uchaf, Treharris occupies a 320 m2 plot as recorded by HM Land Registry.
Of the 32 other houses in this postcode, 24 have recorded plot sizes, and this one ranks as the 16th largest.
Energy Efficiency
21, Heol Uchaf, Treharris has an Energy Performance Rating (EPC) of E. This is based on the most recent assessment, dated 23 Mar 2009.
The property is connected to mains gas and has fully double glazed windows. It is heated using a boiler and radiators (mains gas).
Sold Prices
21, Heol Uchaf, Treharris last changed hands on 17th June 2009, selling for £135,000. The transaction was logged as a freehold house by HM Land Registry.
That is its only recorded sale since 1995.
The market for similar properties has risen by 27.6% since June 2009.
- Sold Jun 2009£135,000
Similar Properties Sold Nearby
Land Registry records and our Estate Agent network show 48 sales of comparable properties within 1.2 kilometres of 21, Heol Uchaf, Treharris since 2007.
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 Mar 2026£240,000 | 3 Bed House24, Heol Isaf, Treharris, CF46 6NS24, Heol Isaf, Treharris, CF46 6NS
- 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
- Sold Apr 2025£226,000 | 3 Bed House11, Market Close, Treharris, CF46 6AZ11, Market Close, Treharris, CF46 6AZ
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 £283,767, ranging from £235,379 to £367,724.
- 23 Heol Uchaf
3 Bed House | 7 m | Est. Value: £271,220
- 25 Heol Uchaf
3 Bed House | 22 m | Est. Value: £263,588
- 24 Heol Isaf
3 Bed House | 27 m | Est. Value: £246,560
- 28 Heol Isaf
4 Bed House | 32 m | Est. Value: £312,841
- 22 Heol Isaf
3 Bed House | 33 m | Est. Value: £248,130
Location Comparison
Our analysis of the public data ranks 21, Heol Uchaf, Treharris as the 13th largest and the 12th most expensive of the 32 addresses on Heol Uchaf, Nelson, Treharris, CF46.
Against the CF46 postcode district average, it is £129k more expensive than the typical property.
More reading links
Schools Nearby
Public Transport Nearby
- Ystrad Mynach|2.6 km away
- Abercynon|3.4 km away
- Quakers Yard|3.4 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.












