1, Y DERI DUON, LISVANE, CARDIFF, CF14 0AA - £445,000

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

1 Y DERI DUON is a small detached house of 104m², which could now be worth an estimated £466,121. It was last sold for £445,000 in July 2024, which was around 11% below the average July 2024 detached price in the Cardiff local authority area. The most recent EPC inspection was December 2020, where the current energy rating was B, and the potential energy rating was A.

1 Y DERI DUON Sold Prices

Land registry data shows two sales for 1 Y DERI DUON since 1^st January 1995. The below table shows the price paid for the two sales, along with the average detached price in the Cardiff local authority area for the corresponding sale date. Both of the two 1 Y DERI DUON sales were 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
2024 26 JUL	£445,000	£499,029	11% below HPI
2020 21 DEC	£359,995	£423,255	15% below HPI

1 Y DERI DUON Price Paid vs. HPI Average

The below graph shows the average detached house price in the Cardiff local authority area over time, sourced from the HPI. The two 1 Y DERI DUON sales from December 2020 and July 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 December 2020 sale was for 15% below the HPI. So the extrapolation line tracks at 15% below the HPI over time, until the July 2024 sale, where it rises to 11% below the HPI. The line then continues to track at 11% below the HPI.

What might 1 Y DERI DUON be worth now?

1 Y DERI DUON might now be worth an estimated £466,121.

This is based on house price inflation of 4.7%, between July 2024 and December 2024, for detached houses, in the Cardiff local authority area, as calculated by the Office for National Statistics and published in their UK House Price Index (HPI).

The 4.7% inflationary increase is applied to the most recent sale price for 1 Y DERI DUON of £445,000 on 26th July 2024. For the value to have increased from £445,000 to £466,121 over the seven months to December 2024, the following assumptions must hold true:

• The value of 1 Y DERI DUON has moved in line with the HPI for detached houses in the Cardiff local authority area.
• The July 2024 sale price of £445,000 represented a fair market value for the property.
• The size, condition, and specification of 1 Y DERI DUON has not materially changed since July 2024.

How Large is 1 Y DERI DUON?

1 Y DERI DUON is 104m² according to the EPC inspection conducted in December 2020. This puts it in the smallest 40% of detached houses houses in Cardiff, based on EPC data. The below chart shows the distribution of detached houses houses by size in Cardiff, and where 1 Y DERI DUON lies on this distribution: 31% of detached houses houses are smaller than 1 Y DERI DUON, and 68% of houses are larger. Note that EPC data is not available for all properties in Cardiff.

1 Y DERI DUON: Plot and Title Map

1 Y DERI DUON sits on a plot of roughly 0.082 of an acre, or 331m². The below map shows the location of 1 Y DERI DUON, 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 1 Y DERI DUON). 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 1 Y DERI DUON?

1 Y DERI DUON is located in LISVANE, in the CF14 postcode district. The below map shows the position of No. 1 on Y DERI DUON.