Based on the January 2025 Price Paid Data (released on 3rd March 2025), the December 2024 House Price Index (released on 19th February 2025), and the January 2025 Energy Performance of Buildings Data (released on 27th February 2025). Sources
15 ALLTWEN HILL is a very small extended semi-detached house of 42m², built sometime between 1900 and 1929, which could now be worth an estimated £169,942. It was last sold for £93,000 in December 2013, which was around 7% above the average December 2013 semi-detached price in the Neath Port Talbot local authority area. The most recent EPC inspection was October 2008, where the current energy rating was F, and the potential energy rating was D.
Land registry data shows two sales for 15 ALLTWEN HILL since 1st January 1995. The below table shows the price paid for the two sales, along with the average semi-detached price in the Neath Port Talbot local authority area for the corresponding sale date. Both of the two 15 ALLTWEN HILL 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 |
---|---|---|---|
2013 6 DEC | £93,000 | £87,132 | ![]() 7% above HPI |
1995 31 JAN | £35,000 | £33,043 | ![]() 6% above HPI |
The below graph shows the average semi-detached house price in the Neath Port Talbot local authority area over time, sourced from the HPI. The two 15 ALLTWEN HILL sales from January 1995 and December 2013 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 January 1995 sale was for 6% above the HPI. So the extrapolation line tracks at 6% above the HPI over time, until the December 2013 sale, where it rises to 7% above the HPI. The line then continues to track at 7% above the HPI.
15 ALLTWEN HILL might now be worth an estimated £169,942.
This is based on house price inflation of 82.7%, between December 2013 and December 2024, for semi-detached houses, in the Neath Port Talbot local authority area, as calculated by the Office for National Statistics and published in their UK House Price Index (HPI).
The 82.7% inflationary increase is applied to the most recent sale price for 15 ALLTWEN HILL of £93,000 on 6th December 2013. For the value to have increased from £93,000 to £169,942 over the eleven years to December 2024, the following assumptions must hold true:
15 ALLTWEN HILL is 42m², which includes two extensions, according to the EPC inspection conducted in October 2008. This puts it in the smallest 10% of semi-detached houses houses in Alltwen, based on EPC data. The below chart shows the distribution of semi-detached houses houses by size in Alltwen, and where 15 ALLTWEN HILL lies on this distribution: Less than 1% of semi-detached houses houses are smaller than 15 ALLTWEN HILL, and more than 99% of houses are larger. Note that EPC data is not available for all properties in Alltwen.
15 ALLTWEN HILL sits on a plot of roughly 0.091 of an acre, or 367m². The below map shows the location of 15 ALLTWEN HILL, 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 15 ALLTWEN HILL). 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.
15 ALLTWEN HILL is located in PONTARDAWE, in the SA8 postcode district. The below map shows the position of No. 15 on ALLTWEN HILL.
Most recent sales first: