9, BASING CLOSE, THAMES DITTON, KT7 0NY - £1,570,000

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.

9 BASING CLOSE is a very large extended detached house of 218m², built sometime between 1930 and 1949, which could now be worth an estimated £1,590,209. It was last sold for £1,570,000 in December 2025, which was around 3% above the average December 2025 detached price in the Elmbridge local authority area. The most recent EPC inspection was November 2016, where the current energy rating was D, and the potential energy rating was C.

9 BASING CLOSE Sold Prices

Land registry data shows three sales for 9 BASING 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 Elmbridge local authority area for the corresponding sale date. The three 9 BASING CLOSE sales were a mix of above the average price, roughly equal to the average price, and 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
2025 10 DEC	£1,570,000	£1,525,020	3% above HPI
2015 27 AUG	£1,215,000	£1,215,060	Close to HPI
2003 11 NOV	£582,500	£614,306	5% below HPI

9 BASING CLOSE Price Paid vs. HPI Average

The below graph shows the average detached house price in the Elmbridge local authority area over time, sourced from the HPI. The three 9 BASING CLOSE sales between November 2003 and December 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 August 2015 sale roughly matched the HPI. So the extrapolation line tracks roughly in line with the HPI over time, until the December 2025 sale, where it rises to 3% above the HPI. The line then continues to track at 3% above the HPI.

What might 9 BASING CLOSE be worth now?

9 BASING CLOSE might now be worth an estimated £1,590,209.

This is based on house price inflation of 1.3%, between December 2025 and April 2026, for detached houses, in the Elmbridge local authority area, as calculated by the Office for National Statistics and published in their UK House Price Index (HPI).

The 1.3% inflationary increase is applied to the most recent sale price for 9 BASING CLOSE of £1,570,000 on 10th December 2025. For the value to have increased from £1,570,000 to £1,590,209 over the one year and eight months to April 2026, the following assumptions must hold true:

• The value of 9 BASING CLOSE has moved in line with the HPI for detached houses in the Elmbridge local authority area.
• The December 2025 sale price of £1,570,000 represented a fair market value for the property.
• The size, condition, and specification of 9 BASING CLOSE has not materially changed since December 2025.

How Large is 9 BASING CLOSE?

9 BASING CLOSE is 218m², which includes two extensions, according to the EPC inspection conducted in November 2016. This puts it in the largest 20% of detached houses houses in Thames Ditton, based on EPC data. The below chart shows the distribution of detached houses houses by size in Thames Ditton, and where 9 BASING CLOSE lies on this distribution: 82% of detached houses houses are smaller than 9 BASING CLOSE, and 18% of houses are larger. Note that EPC data is not available for all properties in Thames Ditton.

9 BASING CLOSE: Plot and Title Map

9 BASING CLOSE sits on a plot of roughly 0.148 of an acre, or 598m². The below map shows the location of 9 BASING 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 9 BASING 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 9 BASING CLOSE?

9 BASING CLOSE is located in THAMES DITTON, in the KT7 postcode district. The below map shows the position of No. 9 on BASING CLOSE.