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.
33 BRYN DERWEN is a very small extended semi-detached house of 54m², built sometime between 1976 and 1982, which could now be worth an estimated £217,329. It was last sold for £212,500 in August 2024, which was around 32% below the average August 2024 semi-detached price in the Cardiff local authority area. The most recent EPC inspection was September 2023, where the current energy rating was C, and the potential energy rating was B.
Land registry data shows five sales for 33 BRYN DERWEN since 1st January 1995. The below table shows the price paid for the five sales, along with the average semi-detached price in the Cardiff local authority area for the corresponding sale date. All of the five 33 BRYN DERWEN 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 28 AUG | £212,500 | £311,210 | ![]() 32% below HPI |
2020 9 APR | £160,000 | £242,167 | ![]() 34% below HPI |
2017 24 FEB | £154,000 | £215,616 | ![]() 29% below HPI |
2003 29 AUG | £105,000 | £130,328 | ![]() 19% below HPI |
1999 15 OCT | £54,000 | £70,282 | ![]() 23% below HPI |
The below graph shows the average semi-detached house price in the Cardiff local authority area over time, sourced from the HPI. The five 33 BRYN DERWEN sales between October 1999 and August 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 April 2020 sale was for 34% below the HPI. So the extrapolation line tracks at 34% below the HPI over time, until the August 2024 sale, where it rises to 32% below the HPI. The line then continues to track at 32% below the HPI.
33 BRYN DERWEN might now be worth an estimated £217,329.
This is based on house price inflation of 2.3%, between August 2024 and June 2025, for semi-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 2.3% inflationary increase is applied to the most recent sale price for 33 BRYN DERWEN of £212,500 on 28th August 2024. For the value to have increased from £212,500 to £217,329 over the one year and two months to June 2025, the following assumptions must hold true:
33 BRYN DERWEN is 54m², which includes one extension, according to the EPC inspection conducted in September 2023. This puts it in the smallest 10% of semi-detached houses houses in Cardiff, based on EPC data. The below chart shows the distribution of semi-detached houses houses by size in Cardiff, and where 33 BRYN DERWEN lies on this distribution: 1% of semi-detached houses houses are smaller than 33 BRYN DERWEN, and 99% of houses are larger. Note that EPC data is not available for all properties in Cardiff.
33 BRYN DERWEN sits on a plot of roughly 0.026 of an acre, or 105m². The below map shows the location of 33 BRYN DERWEN, 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 33 BRYN DERWEN). 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.
33 BRYN DERWEN is located in RADYR, in the CF15 postcode district. The below map shows the position of No. 33 on BRYN DERWEN.
Most recent sales first: