40, DUFFRYN AVENUE, CARDIFF, CF23 6LF - £680,000

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.

40 DUFFRYN AVENUE is a large extended detached house of 134m², built sometime between 1930 and 1949, which could now be worth an estimated £716,366. It was last sold for £680,000 in February 2024, which was around 37% above the average February 2024 detached price in the Cardiff local authority area. The most recent EPC inspection was January 2019, where the current energy rating was D, and the potential energy rating was C.

40 DUFFRYN AVENUE Sold Prices

Land registry data shows two sales for 40 DUFFRYN AVENUE 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 40 DUFFRYN AVENUE 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 2 FEB	£680,000	£496,192	37% above HPI
2007 31 AUG	£425,000	£310,181	37% above HPI

40 DUFFRYN AVENUE 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 40 DUFFRYN AVENUE sales from August 2007 and February 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 August 2007 sale was for 37% above the HPI. So the extrapolation line tracks at 37% above the HPI over time, until the February 2024 sale, which was also at 37% above the HPI.

What might 40 DUFFRYN AVENUE be worth now?

40 DUFFRYN AVENUE might now be worth an estimated £716,366.

This is based on house price inflation of 5.3%, between February 2024 and February 2025, 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 5.3% inflationary increase is applied to the most recent sale price for 40 DUFFRYN AVENUE of £680,000 on 2nd February 2024. For the value to have increased from £680,000 to £716,366 over the one year to February 2025, the following assumptions must hold true:

• The value of 40 DUFFRYN AVENUE has moved in line with the HPI for detached houses in the Cardiff local authority area.
• The February 2024 sale price of £680,000 represented a fair market value for the property.
• The size, condition, and specification of 40 DUFFRYN AVENUE has not materially changed since February 2024.

How Large is 40 DUFFRYN AVENUE?

40 DUFFRYN AVENUE is 134m², which includes two extensions, according to the EPC inspection conducted in January 2019. This puts it in the largest 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 40 DUFFRYN AVENUE lies on this distribution: 63% of detached houses houses are smaller than 40 DUFFRYN AVENUE, and 37% of houses are larger. Note that EPC data is not available for all properties in Cardiff.

40 DUFFRYN AVENUE: Plot and Title Map

40 DUFFRYN AVENUE sits on a plot of roughly 0.125 of an acre, or 506m². The below map shows the location of 40 DUFFRYN AVENUE, 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 40 DUFFRYN AVENUE). 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 40 DUFFRYN AVENUE?

40 DUFFRYN AVENUE is located in CARDIFF, in the CF23 postcode district. The below map shows the position of No. 40 on DUFFRYN AVENUE.