TRIGFA, ABERSOCH, PWLLHELI, LL53 7EH - £1,268,700

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

TRIGFA is a very large extended detached house of 307m², built sometime between 1950 and 1966, which could now be worth an estimated £1,730,615. It was last sold for £1,268,700 in August 2017, which was around 474% above the average August 2017 detached price in the Gwynedd local authority area. The most recent EPC inspection was January 2017, where the current energy rating was G, and the potential energy rating was F.

TRIGFA Sold Prices

Land registry data shows two sales for TRIGFA since 1^st January 1995. The below table shows the price paid for the two sales, along with the average detached price in the Gwynedd local authority area for the corresponding sale date. Both of the two TRIGFA 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
2017 18 AUG	£1,268,700	£221,061	474% above HPI
2007 20 AUG	£750,000	£226,604	231% above HPI

TRIGFA Price Paid vs. HPI Average

The below graph shows the average detached house price in the Gwynedd local authority area over time, sourced from the HPI. The two TRIGFA sales from August 2007 and August 2017 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 2007 sale was for 231% above the HPI. So the extrapolation line tracks at 231% above the HPI over time, until the August 2017 sale, where it rises to 474% above the HPI. The line then continues to track at 474% above the HPI.

What might TRIGFA be worth now?

TRIGFA might now be worth an estimated £1,730,615.

This is based on house price inflation of 36.4%, between August 2017 and February 2025, for 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 36.4% inflationary increase is applied to the most recent sale price for TRIGFA of £1,268,700 on 18th August 2017. For the value to have increased from £1,268,700 to £1,730,615 over the eight years and six months to February 2025, the following assumptions must hold true:

• The value of TRIGFA has moved in line with the HPI for detached houses in the Gwynedd local authority area.
• The August 2017 sale price of £1,268,700 represented a fair market value for the property.
• The size, condition, and specification of TRIGFA has not materially changed since August 2017.

How Large is TRIGFA?

TRIGFA is 307m², which includes four extensions, according to the EPC inspection conducted in January 2017. This puts it in the largest 10% of detached houses houses in Abersoch, based on EPC data. The below chart shows the distribution of detached houses houses by size in Abersoch, and where TRIGFA lies on this distribution: 95% of detached houses houses are smaller than TRIGFA, and 5% of houses are larger. Note that EPC data is not available for all properties in Abersoch.

TRIGFA: Plot and Title Map

TRIGFA sits on a plot of roughly 0.825 of an acre, or 3,340m². The below map shows the location of TRIGFA, 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 TRIGFA). 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.

Where is TRIGFA?

TRIGFA is located in ABERSOCH, in the LL53 postcode district. The below map shows the position of TRIGFA in ABERSOCH.