TREMANAW, PENYBONC, AMLWCH, LL68 9DU - £299,950

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.

TREMANAW is a very large extended detached house of 177m², built sometime between 1976 and 1982, which could now be worth an estimated £370,602. It was last sold for £299,950 in October 2020, which was around 16% above the average October 2020 detached price in the Isle of Anglesey local authority area. The most recent EPC inspection was May 2025, where the current energy rating was D, and the potential energy rating was C.

TREMANAW Sold Prices

Land registry data shows three sales for TREMANAW since 1^st January 1995. The below table shows the price paid for the three sales, along with the average detached price in the Isle of Anglesey local authority area for the corresponding sale date. All of the three TREMANAW 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
2020 28 OCT	£299,950	£259,389	16% above HPI
2018 6 APR	£235,000	£223,780	5% above HPI
2003 12 NOV	£190,000	£134,784	41% above HPI

TREMANAW 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 three TREMANAW sales between November 2003 and October 2020 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 April 2018 sale was for 5% above the HPI. So the extrapolation line tracks at 5% above the HPI over time, until the October 2020 sale, where it rises to 16% above the HPI. The line then continues to track at 16% above the HPI.

What might TREMANAW be worth now?

TREMANAW might now be worth an estimated £370,602.

This is based on house price inflation of 23.6%, between October 2020 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 23.6% inflationary increase is applied to the most recent sale price for TREMANAW of £299,950 on 28th October 2020. For the value to have increased from £299,950 to £370,602 over the five years and four months to June 2025, the following assumptions must hold true:

• The value of TREMANAW has moved in line with the HPI for detached houses in the Isle of Anglesey local authority area.
• The October 2020 sale price of £299,950 represented a fair market value for the property.
• The size, condition, and specification of TREMANAW has not materially changed since October 2020.

How Large is TREMANAW?

TREMANAW is 177m², which includes two extensions, according to the EPC inspection conducted in May 2025. This puts it in the largest 10% of detached houses houses in Amlwch, based on EPC data. The below chart shows the distribution of detached houses houses by size in Amlwch, and where TREMANAW lies on this distribution: 92% of detached houses houses are smaller than TREMANAW, and 8% of houses are larger. Note that EPC data is not available for all properties in Amlwch.

TREMANAW: Plot and Title Map

TREMANAW sits on a plot of roughly 0.199 of an acre, or 806m². The below map shows the location of TREMANAW, 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 TREMANAW). 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 TREMANAW?

TREMANAW is located in PENYBONC, in the LL68 postcode district. The below map shows the position of TREMANAW in PENYBONC.