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.
30 HEOL DON is a very large extended semi-detached house of 234m², built sometime between 1900 and 1929, which could now be worth an estimated £1,161,745. It was last sold for £770,000 in January 2016, which was around 265% above the average January 2016 semi-detached price in the Cardiff local authority area. The most recent EPC inspection was September 2015, where the current energy rating was E, and the potential energy rating was C.
Land registry data shows two sales for 30 HEOL DON since 1st January 1995. The below table shows the price paid for the two sales, along with the average semi-detached price in the Cardiff local authority area for the corresponding sale date. Both of the two 30 HEOL 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 |
---|---|---|---|
2016 22 JAN | £770,000 | £210,956 | ![]() 265% above HPI |
1999 20 AUG | £225,000 | £69,006 | ![]() 226% above HPI |
The below graph shows the average semi-detached house price in the Cardiff local authority area over time, sourced from the HPI. The two 30 HEOL DON sales from August 1999 and January 2016 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 1999 sale was for 226% above the HPI. So the extrapolation line tracks at 226% above the HPI over time, until the January 2016 sale, where it rises to 265% above the HPI. The line then continues to track at 265% above the HPI.
30 HEOL DON might now be worth an estimated £1,161,745.
This is based on house price inflation of 50.9%, between January 2016 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 50.9% inflationary increase is applied to the most recent sale price for 30 HEOL DON of £770,000 on 22nd January 2016. For the value to have increased from £770,000 to £1,161,745 over the eight years and seven months to June 2025, the following assumptions must hold true:
30 HEOL DON is 234m², which includes one extension, according to the EPC inspection conducted in September 2015. This puts it in the largest 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 30 HEOL DON lies on this distribution: 94% of semi-detached houses houses are smaller than 30 HEOL DON, and 5% of houses are larger. Note that EPC data is not available for all properties in Cardiff.
30 HEOL DON sits on a plot of roughly 0.190 of an acre, or 770m². The below map shows the location of 30 HEOL 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 30 HEOL 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.
30 HEOL DON is located in CARDIFF, in the CF14 postcode district. The below map shows the position of No. 30 on HEOL DON.
Most recent sales first: