10, BLENHEIM ROAD, CARDIFF, CF23 5DS - £535,000

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.

10 BLENHEIM ROAD is a large extended terraced house of 134m², built sometime between 1930 and 1949. It was last sold for £535,000 in June 2025, which was around 109% above the average June 2025 terraced price in the Cardiff local authority area. The most recent EPC inspection was August 2020, where the current energy rating was D, and the potential energy rating was C.

10 BLENHEIM ROAD Sold Prices

Land registry data shows three sales for 10 BLENHEIM ROAD since 1^st January 1995. The below table shows the price paid for the three sales, along with the average terraced price in the Cardiff local authority area for the corresponding sale date. All of the three 10 BLENHEIM ROAD 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
2025 30 JUN	£535,000	£255,959	109% above HPI
2021 13 JAN	£455,000	£206,540	120% above HPI
2013 20 DEC	£325,000	£146,809	121% above HPI

10 BLENHEIM ROAD Price Paid vs. HPI Average

The below graph shows the average terraced house price in the Cardiff local authority area over time, sourced from the HPI. The three 10 BLENHEIM ROAD sales between December 2013 and June 2025 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 January 2021 sale was for 120% above the HPI. So the extrapolation line tracks at 120% above the HPI over time, until the June 2025 sale, where it falls to 109% above the HPI. The line then continues to track at 109% above the HPI.

How Large is 10 BLENHEIM ROAD?

10 BLENHEIM ROAD is 134m², which includes three extensions, according to the EPC inspection conducted in August 2020. This puts it in the largest 40% 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 10 BLENHEIM ROAD lies on this distribution: 63% of terraced houses houses are smaller than 10 BLENHEIM ROAD, and 37% of houses are larger. Note that EPC data is not available for all properties in Cardiff.

10 BLENHEIM ROAD: Plot and Title Map

10 BLENHEIM ROAD sits on a plot of roughly 0.034 of an acre, or 138m². The below map shows the location of 10 BLENHEIM ROAD, 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 10 BLENHEIM ROAD). 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 10 BLENHEIM ROAD?

10 BLENHEIM ROAD is located in CARDIFF, in the CF23 postcode district. The below map shows the position of No. 10 on BLENHEIM ROAD.