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.
1 CARN CELYN is a very small semi-detached house of 55m², built sometime between 1996 and 2002, which could now be worth an estimated £235,968. It was last sold for £113,500 in June 2005, which was around 31% above the average June 2005 semi-detached price in the Rhondda Cynon Taf local authority area. The most recent EPC inspection was August 2025, where the current energy rating was C, and the potential energy rating was C.
Land registry data shows three sales for 1 CARN CELYN since 1st January 1995. The below table shows the price paid for the three sales, along with the average semi-detached price in the Rhondda Cynon Taf local authority area for the corresponding sale date. All of the three 1 CARN CELYN 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 |
|---|---|---|---|
2005 28 JUN | £113,500 | £86,936 | 31% above HPI |
2000 26 APR | £45,500 | £37,857 | 20% above HPI |
1995 24 FEB | £42,000 | £32,766 | 28% above HPI |
The below graph shows the average semi-detached house price in the Rhondda Cynon Taf local authority area over time, sourced from the HPI. The three 1 CARN CELYN sales between February 1995 and June 2005 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 April 2000 sale was for 20% above the HPI. So the extrapolation line tracks at 20% above the HPI over time, until the June 2005 sale, where it rises to 31% above the HPI. The line then continues to track at 31% above the HPI.

1 CARN CELYN might now be worth an estimated £235,968.
This is based on house price inflation of 107.9%, between June 2005 and April 2026, for semi-detached houses, in the Rhondda Cynon Taf local authority area, as calculated by the Office for National Statistics and published in their UK House Price Index (HPI).
The 107.9% inflationary increase is applied to the most recent sale price for 1 CARN CELYN of £113,500 on 28th June 2005. For the value to have increased from £113,500 to £235,968 over the 21 years and two months to April 2026, the following assumptions must hold true:
1 CARN CELYN is 55m² according to the EPC inspection conducted in August 2025. This puts it in the smallest 10% of semi-detached houses houses in Beddau, based on EPC data. The below chart shows the distribution of semi-detached houses houses by size in Beddau, and where 1 CARN CELYN lies on this distribution: Less than 1% of semi-detached houses houses are smaller than 1 CARN CELYN, and more than 99% of houses are larger. Note that EPC data is not available for all properties in Beddau.

1 CARN CELYN sits on a plot of roughly 0.033 of an acre, or 133m². The below map shows the location of 1 CARN CELYN, 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 1 CARN CELYN). 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.

1 CARN CELYN is located in BEDDAU, in the CF38 postcode district. The below map shows the position of No. 1 on CARN CELYN.

Most recent sales first: