25, TREM Y DON, BARRY, CF62 6QJ - £637,000

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.

25 TREM Y DON is a very large detached house of 159m², built sometime between 1950 and 1966, which could now be worth an estimated £649,148. It was last sold for £637,000 in June 2024, which was around 26% above the average June 2024 detached price in the Vale of Glamorgan local authority area. The most recent EPC inspection was May 2015, where the current energy rating was E, and the potential energy rating was C.

25 TREM Y DON Sold Prices

Land registry data shows three sales for 25 TREM Y DON since 1^st January 1995. The below table shows the price paid for the three sales, along with the average detached price in the Vale of Glamorgan local authority area for the corresponding sale date. All of the three 25 TREM Y DON 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
2024 27 JUN	£637,000	£503,982	26% above HPI
2015 14 JUL	£415,000	£331,117	25% above HPI
1996 8 NOV	£120,000	£100,339	20% above HPI

25 TREM Y DON Price Paid vs. HPI Average

The below graph shows the average detached house price in the Vale of Glamorgan local authority area over time, sourced from the HPI. The three 25 TREM Y DON sales between November 1996 and June 2024 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 2015 sale was for 25% above the HPI. So the extrapolation line tracks at 25% above the HPI over time, until the June 2024 sale, where it rises to 26% above the HPI. The line then continues to track at 26% above the HPI.

What might 25 TREM Y DON be worth now?

25 TREM Y DON might now be worth an estimated £649,148.

This is based on house price inflation of 1.9%, between June 2024 and August 2025, for detached houses, in the Vale of Glamorgan local authority area, as calculated by the Office for National Statistics and published in their UK House Price Index (HPI).

The 1.9% inflationary increase is applied to the most recent sale price for 25 TREM Y DON of £637,000 on 27th June 2024. For the value to have increased from £637,000 to £649,148 over the ten months to August 2025, the following assumptions must hold true:

• The value of 25 TREM Y DON has moved in line with the HPI for detached houses in the Vale of Glamorgan local authority area.
• The June 2024 sale price of £637,000 represented a fair market value for the property.
• The size, condition, and specification of 25 TREM Y DON has not materially changed since June 2024.

How Large is 25 TREM Y DON?

25 TREM Y DON is 159m² according to the EPC inspection conducted in May 2015. This puts it in the largest 20% of detached houses houses in Barry, based on EPC data. The below chart shows the distribution of detached houses houses by size in Barry, and where 25 TREM Y DON lies on this distribution: 85% of detached houses houses are smaller than 25 TREM Y DON, and 14% of houses are larger. Note that EPC data is not available for all properties in Barry.

25 TREM Y DON: Plot and Title Map

25 TREM Y DON sits on a plot of roughly 0.114 of an acre, or 462m². The below map shows the location of 25 TREM Y DON, 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 25 TREM Y DON). 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 25 TREM Y DON?

25 TREM Y DON is located in BARRY, in the CF62 postcode district. The below map shows the position of No. 25 on TREM Y DON.