PORTH YR AFON, LON ISALLT, TREARDDUR BAY, HOLYHEAD, LL65 2UP - £412,000

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

PORTH YR AFON is a large detached house of 152m², built sometime between 1983 and 1990, which could now be worth an estimated £654,772. It was last sold for £412,000 in July 2014, which was around 108% above the average July 2014 detached price in the Isle of Anglesey local authority area. The most recent EPC inspection was May 2014, where the current energy rating was D, and the potential energy rating was B.

PORTH YR AFON Sold Prices

Land registry data shows two sales for PORTH YR AFON 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 PORTH YR AFON 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
2014 14 JUL	£412,000	£198,126	108% above HPI
1996 20 SEP	£105,000	£56,689	85% above HPI

PORTH YR AFON 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 PORTH YR AFON sales from September 1996 and July 2014 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 September 1996 sale was for 85% above the HPI. So the extrapolation line tracks at 85% above the HPI over time, until the July 2014 sale, where it rises to 108% above the HPI. The line then continues to track at 108% above the HPI.

What might PORTH YR AFON be worth now?

PORTH YR AFON might now be worth an estimated £654,772.

This is based on house price inflation of 58.9%, between July 2014 and February 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 58.9% inflationary increase is applied to the most recent sale price for PORTH YR AFON of £412,000 on 14th July 2014. For the value to have increased from £412,000 to £654,772 over the eleven years and five months to February 2025, the following assumptions must hold true:

• The value of PORTH YR AFON has moved in line with the HPI for detached houses in the Isle of Anglesey local authority area.
• The July 2014 sale price of £412,000 represented a fair market value for the property.
• The size, condition, and specification of PORTH YR AFON has not materially changed since July 2014.

How Large is PORTH YR AFON?

PORTH YR AFON is 152m² according to the EPC inspection conducted in May 2014. This puts it in the largest 30% of detached houses houses in Trearddur, based on EPC data. The below chart shows the distribution of detached houses houses by size in Trearddur, and where PORTH YR AFON lies on this distribution: 78% of detached houses houses are smaller than PORTH YR AFON, and 22% of houses are larger. Note that EPC data is not available for all properties in Trearddur.

PORTH YR AFON: Plot and Title Map

PORTH YR AFON sits on a plot of roughly 0.317 of an acre, or 1,281m². The below map shows the location of PORTH YR AFON, 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 PORTH YR AFON). 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 PORTH YR AFON?

PORTH YR AFON is located on LON ISALLT in TREARDDUR BAY, in the LL65 postcode district. The below map shows the position of PORTH YR AFON on LON ISALLT.