3, RIVER AVENUE, TRELEWIS, TREHARRIS, CF46 6EF - £345,000

The information on this page is based on a number of underlying datasets, most of which are updated monthly. We maintain an update schedule which explains which version of each dataset we are currently relying on.

3 RIVER AVENUE is a midsized detached house of 116m², built sometime between 2012 and 2021. It was last sold for £345,000 in May 2026, which was around 37% above the average May 2026 detached price in the Merthyr Tydfil local authority area. The most recent EPC inspection was July 2025, where the current energy rating was C, and the potential energy rating was B.

3 RIVER AVENUE Sold Prices

Land registry data shows two sales for 3 RIVER AVENUE since 1^st January 1995. The below table shows the price paid for the two sales, along with the average detached price in the Merthyr Tydfil local authority area for the corresponding sale date. Both of the two 3 RIVER AVENUE sales were for above the average price. The average price is sourced from the Office for National Statistics' House Price Index (HPI).

Date	Price	HPI Price	Variation from HPI
2026 22 MAY	£345,000	£252,643	37% above HPI
2013 26 SEP	£205,500	£131,542	56% above HPI

3 RIVER AVENUE Price Paid vs. HPI Average

The below graph shows the average detached house price in the Merthyr Tydfil local authority area over time, sourced from the HPI. The two 3 RIVER AVENUE sales from September 2013 and May 2026 have been plotted on the graph. A line has been extrapolated to show what the value of the property might have been over time, following each sale, had it maintained the same margin above or below the HPI (as a percentage). For example, the September 2013 sale was for 56% above the HPI. So the extrapolation line tracks at 56% above the HPI over time, until the May 2026 sale, where it falls to 37% above the HPI. The line then continues to track at 37% above the HPI.

How Large is 3 RIVER AVENUE?

3 RIVER AVENUE is 116m² according to the EPC inspection conducted in July 2025. This puts it in the largest 50% of detached houses houses in Trelewis, based on EPC data. The below chart shows the distribution of detached houses houses by size in Trelewis, and where 3 RIVER AVENUE lies on this distribution: 56% of detached houses houses are smaller than 3 RIVER AVENUE, and 44% of houses are larger. Note that EPC data is not available for all properties in Trelewis.

3 RIVER AVENUE: Plot and Title Map

3 RIVER AVENUE sits on a plot of roughly 0.076 of an acre, or 307m². The below map shows the location of 3 RIVER AVENUE, an approximate outline of the building(s), and the indicative extent of the property. The plot extent is a Land Registry INSPIRE Index Polygon, and it is important to note that a title may include more than one polygon, whereas only one polygon is shown on the map (the polygon which intersects with the position of 3 RIVER AVENUE). The full extent of the land contained in any registered title can only be identified from the individual title plan. The maps on this page should not be relied upon to establish the extent of a title.

Where is 3 RIVER AVENUE?

3 RIVER AVENUE is located in TRELEWIS, in the CF46 postcode district. The below map shows the position of No. 3 on RIVER AVENUE.