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
20 NANT Y MYNYDD is a large detached house of 106m², built sometime between 1983 and 1990, which could now be worth an estimated £253,909. It was last sold for £125,000 in April 2004, which was around 16% below the average April 2004 detached price in the Isle of Anglesey local authority area. The most recent EPC inspection was November 2021, where the current energy rating was D, and the potential energy rating was C.
Land registry data shows three sales for 20 NANT Y MYNYDD since 1st January 1995. The below table shows the price paid for the three sales, along with the average detached price in the Isle of Anglesey local authority area for the corresponding sale date. All of the three 20 NANT Y MYNYDD 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 |
---|---|---|---|
2004 8 APR | £125,000 | £148,822 | ![]() 16% below HPI |
2002 12 DEC | £60,000 | £100,117 | ![]() 40% below HPI |
2001 8 NOV | £59,995 | £84,574 | ![]() 29% below HPI |
The below graph shows the average detached house price in the Isle of Anglesey local authority area over time, sourced from the HPI. The three 20 NANT Y MYNYDD sales between November 2001 and April 2004 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 December 2002 sale was for 40% below the HPI. So the extrapolation line tracks at 40% below the HPI over time, until the April 2004 sale, where it rises to 16% below the HPI. The line then continues to track at 16% below the HPI.
20 NANT Y MYNYDD might now be worth an estimated £253,909.
This is based on house price inflation of 103.1%, between April 2004 and December 2024, for detached houses, in the Isle of Anglesey local authority area, as calculated by the Office for National Statistics and published in their UK House Price Index (HPI).
The 103.1% inflationary increase is applied to the most recent sale price for 20 NANT Y MYNYDD of £125,000 on 8th April 2004. For the value to have increased from £125,000 to £253,909 over the nineteen years and four months to December 2024, the following assumptions must hold true:
20 NANT Y MYNYDD is 106m² according to the EPC inspection conducted in November 2021. This puts it in the largest 30% of detached houses houses in Llanfechell, based on EPC data. The below chart shows the distribution of detached houses houses by size in Llanfechell, and where 20 NANT Y MYNYDD lies on this distribution: 72% of detached houses houses are smaller than 20 NANT Y MYNYDD, and 27% of houses are larger. Note that EPC data is not available for all properties in Llanfechell.
20 NANT Y MYNYDD sits on a plot of roughly 0.096 of an acre, or 390m². The below map shows the location of 20 NANT Y MYNYDD, 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 20 NANT Y MYNYDD). 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.
20 NANT Y MYNYDD is located in LLANFECHELL, in the LL68 postcode district. The below map shows the position of No. 20 on NANT Y MYNYDD.
Most recent sales first: