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.
27 DIANA STREET is a large extended terraced house of 150m², built sometime before 1900, which could now be worth an estimated £305,941. It was last sold for £178,000 in January 2008, which was around 20% above the average January 2008 terraced price in the Cardiff local authority area. The most recent EPC inspection was March 2016, where the current energy rating was D, and the potential energy rating was C.
Land registry data shows two sales for 27 DIANA STREET since 1st January 1995. The below table shows the price paid for the two sales, along with the average terraced price in the Cardiff local authority area for the corresponding sale date. Both of the two 27 DIANA STREET 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 |
---|---|---|---|
2008 25 JAN | £178,000 | £148,920 | ![]() 20% above HPI |
1999 7 SEP | £77,950 | £54,783 | ![]() 42% above HPI |
The below graph shows the average terraced house price in the Cardiff local authority area over time, sourced from the HPI. The two 27 DIANA STREET sales from September 1999 and January 2008 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 September 1999 sale was for 42% above the HPI. So the extrapolation line tracks at 42% above the HPI over time, until the January 2008 sale, where it falls to 20% above the HPI. The line then continues to track at 20% above the HPI.
27 DIANA STREET might now be worth an estimated £305,941.
This is based on house price inflation of 71.9%, between January 2008 and June 2025, for terraced 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 71.9% inflationary increase is applied to the most recent sale price for 27 DIANA STREET of £178,000 on 25th January 2008. For the value to have increased from £178,000 to £305,941 over the sixteen years and seven months to June 2025, the following assumptions must hold true:
27 DIANA STREET is 150m², which includes one extension, according to the EPC inspection conducted in March 2016. This puts it in the largest 30% of terraced houses houses in Cardiff, based on EPC data. The below chart shows the distribution of terraced houses houses by size in Cardiff, and where 27 DIANA STREET lies on this distribution: 73% of terraced houses houses are smaller than 27 DIANA STREET, and 27% of houses are larger. Note that EPC data is not available for all properties in Cardiff.
27 DIANA STREET sits on a plot of roughly 0.022 of an acre, or 88m². The below map shows the location of 27 DIANA STREET, 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 27 DIANA STREET). 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.
27 DIANA STREET is located in CARDIFF, in the CF24 postcode district. The below map shows the position of No. 27 on DIANA STREET.
Most recent sales first: