18, River Avenue
18, River Avenue
Description & Estimates







Public records show 18, River Avenue, Treharris to be a modern freehold house with 1,130 ft2 of internal area, sitting on a 231 m2 plot.
In this area, houses of this size normally have 3 bedrooms with a garden.
18, River Avenue, Treharris has an estimated sale value of £321,599 and an estimated rental value of £1,423 per month, assuming reasonable condition and based on the information available.
River Avenue, Trelewis, Treharris, CF46 lies within the CF46 postal district.
Our Data Sources
18, River Avenue, Treharris has 3 entries in the Land Registry , most recently in November 2022 and a single entry in the EPC database dated July 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
In very good condition, we estimate 18, River Avenue, Treharris would be worth £337,679, with a potential rental value of £1,494 per month.
If substantial cosmetic improvements are needed, the estimated sale value falls to £299,087, with a rental value of £1,323 per month.
The extent to which decoration affects a property's value depends on its type, size and location.
Recent Market Change
The estimated sale value of 18, River Avenue, Treharris has grown by £7,914 (2.5%) over the last year. During the same period, its estimated monthly rental value has climbed by £56 (3.9%). The property's estimated gross yield is currently 5.3%.
Plot Size
18, River Avenue, Treharris occupies a 231 m2 plot as recorded by HM Land Registry.
All 37 other houses in this postcode have recorded plot sizes, and this one ranks as the 25th largest.
Energy Efficiency
18, River Avenue, Treharris has an Energy Performance Rating (EPC) of B. This is based on the most recent assessment, dated 14 Jul 2014.
The property is not connected to mains gas and has high performance glazing. It is heated using Boiler and radiators, mains gas.
Sold Prices
18, River Avenue, Treharris last changed hands on 1st November 2022, selling for £310,000. The transaction was logged as a freehold house by HM Land Registry.
In total it has sold 3 times since 1995.
The market for similar properties has dropped by 6.2% since November 2022.
- Sold Nov 2022£310,000
- Sold Jun 2017£212,000
- Sold Aug 2014£194,995
Similar Properties Sold Nearby
Land Registry records and our Estate Agent network show 3 sales of comparable properties within 1.1 kilometres of 18, River Avenue, Treharris across the last 2 years.
Most recently, 25, River Avenue, Treharris, CF46 6EF, a freehold house, sold at £315,000 on the 1st August 2025.
Read more about house prices in CF46.
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
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Location Comparison
Our analysis of the public data ranks 18, River Avenue, Treharris as the 11th largest and the 11th most expensive of the 37 addresses on River Avenue, Trelewis, Treharris, CF46.
Against the CF46 postcode district average, it is £164k more expensive than the typical property.
More reading links
Schools Nearby
Public Transport Nearby
Quakers Yard station is the nearest stop to 18, River Avenue, Treharris at 2.5 kilometres away.
- 2.5kmQuakers Yard
- 3.4kmAbercynon
- 4.0kmYstrad Mynach
Available Internet Speeds
Ofcom's latest figures show superfast broadband available in this area.
According to recent data from Ofcom, Superfast broadband is available in the area.
Risk of Flooding
Environment Agency data suggests this area has a very low risk of flooding.

