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.
29 LLYS DWYNWEN is a very small semi-detached house of 55m², built sometime between 1991 and 1995, which could now be worth an estimated £227,604. It was last sold for £54,300 in February 2001, which was around 25% below the average February 2001 semi-detached price in the Vale of Glamorgan local authority area. The most recent EPC inspection was October 2013, where the current energy rating was D, and the potential energy rating was B.
Land registry data shows two sales for 29 LLYS DWYNWEN since 1st January 1995. The below table shows the price paid for the two sales, along with the average semi-detached price in the Vale of Glamorgan local authority area for the corresponding sale date. Both of the two 29 LLYS DWYNWEN sales were for below 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 |
|---|---|---|---|
2001 9 FEB | £54,300 | £72,245 | 25% below HPI |
1996 26 SEP | £43,800 | £55,684 | 21% below HPI |
The below graph shows the average semi-detached house price in the Vale of Glamorgan local authority area over time, sourced from the HPI. The two 29 LLYS DWYNWEN sales from September 1996 and February 2001 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 1996 sale was for 21% below the HPI. So the extrapolation line tracks at 21% below the HPI over time, until the February 2001 sale, where it falls to 25% below the HPI. The line then continues to track at 25% below the HPI.

29 LLYS DWYNWEN might now be worth an estimated £227,604.
This is based on house price inflation of 319.2%, between February 2001 and August 2025, for semi-detached houses, in the Vale of Glamorgan local authority area, as calculated by the Office for National Statistics and published in their UK House Price Index (HPI).
The 319.2% inflationary increase is applied to the most recent sale price for 29 LLYS DWYNWEN of £54,300 on 9th February 2001. For the value to have increased from £54,300 to £227,604 over the 23 years and six months to August 2025, the following assumptions must hold true:
29 LLYS DWYNWEN is 55m² according to the EPC inspection conducted in October 2013. This puts it in the smallest 10% of semi-detached houses houses in Llantwit Major, based on EPC data. The below chart shows the distribution of semi-detached houses houses by size in Llantwit Major, and where 29 LLYS DWYNWEN lies on this distribution: 1% of semi-detached houses houses are smaller than 29 LLYS DWYNWEN, and 98% of houses are larger. Note that EPC data is not available for all properties in Llantwit Major.

29 LLYS DWYNWEN sits on a plot of roughly 0.042 of an acre, or 168m². The below map shows the location of 29 LLYS DWYNWEN, 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 29 LLYS DWYNWEN). 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.

29 LLYS DWYNWEN is located in LLANTWIT MAJOR, in the CF61 postcode district. The below map shows the position of No. 29 on LLYS DWYNWEN.

Most recent sales first: