THE MILL, CAERGEILIOG, HOLYHEAD, LL65 3YD - £413,000

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.

THE MILL is a large extended detached house of 174m², built sometime between 1967 and 1975, which could now be worth an estimated £414,089. It was last sold for £413,000 in September 2025, which was around 27% above the average September 2025 detached price in the Isle of Anglesey local authority area. The most recent EPC inspection was June 2024, where the current energy rating was E, and the potential energy rating was B.

THE MILL Sold Prices

Land registry data shows two sales for THE MILL 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. One of the two THE MILL sales was for above the average price, whilst the other was 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
2025 15 SEP	£413,000	£326,064	27% above HPI
2019 3 JUL	£190,000	£236,835	20% below HPI

THE MILL 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 THE MILL sales from July 2019 and September 2025 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 July 2019 sale was for 20% below the HPI. So the extrapolation line tracks at 20% below the HPI over time, until the September 2025 sale, where it rises to 27% above the HPI. The line then continues to track at 27% above the HPI.

What might THE MILL be worth now?

THE MILL might now be worth an estimated £414,089.

This is based on house price inflation of 0.3%, between September 2025 and May 2026, 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 0.3% inflationary increase is applied to the most recent sale price for THE MILL of £413,000 on 15th September 2025. For the value to have increased from £413,000 to £414,089 over the one year and four months to May 2026, the following assumptions must hold true:

• The value of THE MILL has moved in line with the HPI for detached houses in the Isle of Anglesey local authority area.
• The September 2025 sale price of £413,000 represented a fair market value for the property.
• The size, condition, and specification of THE MILL has not materially changed since September 2025.

How Large is THE MILL?

THE MILL is 174m², which includes one extension, according to the EPC inspection conducted in June 2024. This puts it in the largest 30% of detached houses houses in Caergeiliog, based on EPC data. The below chart shows the distribution of detached houses houses by size in Caergeiliog, and where THE MILL lies on this distribution: 74% of detached houses houses are smaller than THE MILL, and 26% of houses are larger. Note that EPC data is not available for all properties in Caergeiliog.

THE MILL: Plot and Title Map

THE MILL sits on a plot of roughly 1.2 acres, or 4,816m². The below map shows the location of THE MILL, 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 THE MILL). 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 THE MILL?

THE MILL is located in CAERGEILIOG, in the LL65 postcode district. The below map shows the position of THE MILL in CAERGEILIOG.