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.
21 ROOKWOOD AVENUE is a very large extended semi-detached house of 186m², built sometime between 1930 and 1949, which could now be worth an estimated £270,252. It was last sold for £96,623 in December 2002, which was around 15% below the average December 2002 semi-detached price in the Cardiff local authority area. The most recent EPC inspection was November 2023, where the current energy rating was C, and the potential energy rating was B.
Land registry data shows two sales for 21 ROOKWOOD AVENUE 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. One of the two 21 ROOKWOOD AVENUE sales was for below the average price, whilst the other was 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 |
---|---|---|---|
2002 20 DEC | £96,623 | £113,795 | ![]() 15% below HPI |
1996 18 NOV | £130,000 | £55,430 | ![]() 135% 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 21 ROOKWOOD AVENUE sales from November 1996 and December 2002 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 November 1996 sale was for 135% above the HPI. So the extrapolation line tracks at 135% above the HPI over time, until the December 2002 sale, where it falls to 15% below the HPI. The line then continues to track at 15% below the HPI.
21 ROOKWOOD AVENUE might now be worth an estimated £270,252.
This is based on house price inflation of 179.7%, between December 2002 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 179.7% inflationary increase is applied to the most recent sale price for 21 ROOKWOOD AVENUE of £96,623 on 20th December 2002. For the value to have increased from £96,623 to £270,252 over the 23 years and six months to June 2025, the following assumptions must hold true:
21 ROOKWOOD AVENUE is 186m², which includes two extensions, according to the EPC inspection conducted in November 2023. This puts it in the largest 20% 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 21 ROOKWOOD AVENUE lies on this distribution: 87% of semi-detached houses houses are smaller than 21 ROOKWOOD AVENUE, and 13% of houses are larger. Note that EPC data is not available for all properties in Cardiff.
21 ROOKWOOD AVENUE sits on a plot of roughly 0.120 of an acre, or 484m². The below map shows the location of 21 ROOKWOOD 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 21 ROOKWOOD 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.
21 ROOKWOOD AVENUE is located in CARDIFF, in the CF5 postcode district. The below map shows the position of No. 21 on ROOKWOOD AVENUE.
Most recent sales first: