GWYNFA, LLANFAETHLU, HOLYHEAD, LL65 4PB - £288,000

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.

GWYNFA is a very large extended detached house of 299m², built sometime between 2007 and 2011, which could now be worth an estimated £485,719. It was last sold for £288,000 in September 2009, which was around 52% above the average September 2009 detached price in the Isle of Anglesey local authority area. The most recent EPC inspection was November 2021, where the current energy rating was C, and the potential energy rating was B.

GWYNFA Sold Prices

Land registry data shows two sales for GWYNFA since 1^st January 1995. The below table shows the price paid for the two sales, along with the average detached price in the Isle of Anglesey local authority area for the corresponding sale date. Both of the two GWYNFA 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
2009 11 SEP	£288,000	£190,028	52% above HPI
1998 26 JUN	£97,950	£70,389	39% above HPI

GWYNFA Price Paid vs. HPI Average

The below graph shows the average detached house price in the Isle of Anglesey local authority area over time, sourced from the HPI. The two GWYNFA sales from June 1998 and September 2009 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 June 1998 sale was for 39% above the HPI. So the extrapolation line tracks at 39% above the HPI over time, until the September 2009 sale, where it rises to 52% above the HPI. The line then continues to track at 52% above the HPI.

What might GWYNFA be worth now?

GWYNFA might now be worth an estimated £485,719.

This is based on house price inflation of 68.7%, between September 2009 and June 2025, 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 68.7% inflationary increase is applied to the most recent sale price for GWYNFA of £288,000 on 11th September 2009. For the value to have increased from £288,000 to £485,719 over the sixteen years and three months to June 2025, the following assumptions must hold true:

• The value of GWYNFA has moved in line with the HPI for detached houses in the Isle of Anglesey local authority area.
• The September 2009 sale price of £288,000 represented a fair market value for the property.
• The size, condition, and specification of GWYNFA has not materially changed since September 2009.

How Large is GWYNFA?

GWYNFA is 299m², which includes one extension, according to the EPC inspection conducted in November 2021. This puts it in the largest 10% of detached houses houses in Llanfaethlu, based on EPC data. The below chart shows the distribution of detached houses houses by size in Llanfaethlu, and where GWYNFA lies on this distribution: 97% of detached houses houses are smaller than GWYNFA, and 3% of houses are larger. Note that EPC data is not available for all properties in Llanfaethlu.

GWYNFA: Plot and Title Map

GWYNFA sits on a plot of roughly 5.5 acres, or 22,300m². The below map shows the location of GWYNFA, 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 GWYNFA). 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 GWYNFA?

GWYNFA is located in LLANFAETHLU, in the LL65 postcode district. The below map shows the position of GWYNFA in LLANFAETHLU.