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
5 GLAN SEIONT is a very small semi-detached house of 40m², built sometime between 1983 and 1990, which could now be worth an estimated £136,411. It was last sold for £95,000 in September 2008, which was around 32% below the average September 2008 semi-detached price in the Gwynedd local authority area. The most recent EPC inspection was September 2016, where the current energy rating was D, and the potential energy rating was B.
Land registry data shows three sales for 5 GLAN SEIONT since 1st January 1995. The below table shows the price paid for the three sales, along with the average semi-detached price in the Gwynedd local authority area for the corresponding sale date. All of the three 5 GLAN SEIONT 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 |
---|---|---|---|
2008 5 SEP | £95,000 | £140,077 | ![]() 32% below HPI |
2003 20 AUG | £54,000 | £82,023 | ![]() 34% below HPI |
1996 9 AUG | £26,500 | £37,316 | ![]() 29% below HPI |
The below graph shows the average semi-detached house price in the Gwynedd local authority area over time, sourced from the HPI. The three 5 GLAN SEIONT sales between August 1996 and September 2008 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 August 2003 sale was for 34% below the HPI. So the extrapolation line tracks at 34% below the HPI over time, until the September 2008 sale, where it rises to 32% below the HPI. The line then continues to track at 32% below the HPI.
5 GLAN SEIONT might now be worth an estimated £136,411.
This is based on house price inflation of 43.6%, between September 2008 and February 2025, for semi-detached houses, in the Gwynedd local authority area, as calculated by the Office for National Statistics and published in their UK House Price Index (HPI).
The 43.6% inflationary increase is applied to the most recent sale price for 5 GLAN SEIONT of £95,000 on 5th September 2008. For the value to have increased from £95,000 to £136,411 over the seventeen years and seven months to February 2025, the following assumptions must hold true:
5 GLAN SEIONT is 40m² according to the EPC inspection conducted in September 2016. This puts it in the smallest 10% of semi-detached houses houses in Caernarfon, based on EPC data. The below chart shows the distribution of semi-detached houses houses by size in Caernarfon, and where 5 GLAN SEIONT lies on this distribution: Less than 1% of semi-detached houses houses are smaller than 5 GLAN SEIONT, and more than 99% of houses are larger. Note that EPC data is not available for all properties in Caernarfon.
5 GLAN SEIONT sits on a plot of roughly 0.019 of an acre, or 78m². The below map shows the location of 5 GLAN SEIONT, 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 5 GLAN SEIONT). 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.
5 GLAN SEIONT is located in CAERNARFON, in the LL55 postcode district. The below map shows the position of No. 5 on GLAN SEIONT.
Most recent sales first: