13, GRANTHAM CLOSE, CARDIFF, CF5 2EX - £368,000

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.

13 GRANTHAM CLOSE is a very small extended detached house of 83m², built sometime between 1991 and 1995, which could now be worth an estimated £370,803. It was last sold for £368,000 in February 2026, which was around 29% below the average February 2026 detached price in the Cardiff local authority area. The most recent EPC inspection was August 2025, where the current energy rating was C, and the potential energy rating was C.

13 GRANTHAM CLOSE Sold Prices

Land registry data shows three sales for 13 GRANTHAM CLOSE since 1^st January 1995. The below table shows the price paid for the three sales, along with the average detached price in the Cardiff local authority area for the corresponding sale date. All of the three 13 GRANTHAM CLOSE 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
2026 20 FEB	£368,000	£517,576	29% below HPI
2016 19 FEB	£216,750	£359,977	40% below HPI
2008 22 FEB	£242,500	£306,602	21% below HPI

13 GRANTHAM CLOSE Price Paid vs. HPI Average

The below graph shows the average detached house price in the Cardiff local authority area over time, sourced from the HPI. The three 13 GRANTHAM CLOSE sales between February 2008 and February 2026 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 February 2016 sale was for 40% below the HPI. So the extrapolation line tracks at 40% below the HPI over time, until the February 2026 sale, where it rises to 29% below the HPI. The line then continues to track at 29% below the HPI.

What might 13 GRANTHAM CLOSE be worth now?

13 GRANTHAM CLOSE might now be worth an estimated £370,803.

This is based on house price inflation of 0.8%, between February 2026 and April 2026, for 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 0.8% inflationary increase is applied to the most recent sale price for 13 GRANTHAM CLOSE of £368,000 on 20th February 2026. For the value to have increased from £368,000 to £370,803 over the ten months to April 2026, the following assumptions must hold true:

• The value of 13 GRANTHAM CLOSE has moved in line with the HPI for detached houses in the Cardiff local authority area.
• The February 2026 sale price of £368,000 represented a fair market value for the property.
• The size, condition, and specification of 13 GRANTHAM CLOSE has not materially changed since February 2026.

How Large is 13 GRANTHAM CLOSE?

13 GRANTHAM CLOSE is 83m², which includes one extension, according to the EPC inspection conducted in August 2025. This puts it in the smallest 20% of detached houses houses in Cardiff, based on EPC data. The below chart shows the distribution of detached houses houses by size in Cardiff, and where 13 GRANTHAM CLOSE lies on this distribution: 11% of detached houses houses are smaller than 13 GRANTHAM CLOSE, and 88% of houses are larger. Note that EPC data is not available for all properties in Cardiff.

13 GRANTHAM CLOSE: Plot and Title Map

13 GRANTHAM CLOSE sits on a plot of roughly 0.064 of an acre, or 259m². The below map shows the location of 13 GRANTHAM CLOSE, 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 13 GRANTHAM CLOSE). 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 13 GRANTHAM CLOSE?

13 GRANTHAM CLOSE is located in CARDIFF, in the CF5 postcode district. The below map shows the position of No. 13 on GRANTHAM CLOSE.