20, KNOWLE PARK, COBHAM, KT11 3AB - £1,125,000

Based on the January 2025 Price Paid Data (released on 3rd March 2025), the December 2024 House Price Index (released on 19th February 2025), and the January 2025 Energy Performance of Buildings Data (released on 27th February 2025). Sources

20 KNOWLE PARK is a very small extended detached house of 156m², built sometime between 1950 and 1966, which could now be worth an estimated £1,278,998. It was last sold for £1,125,000 in November 2017, which was around 12% below the average November 2017 detached price in the Elmbridge local authority area. The most recent EPC inspection was March 2010, where the current energy rating was D, and the potential energy rating was C.

20 KNOWLE PARK Sold Prices

Land registry data shows four sales for 20 KNOWLE PARK since 1^st January 1995. The below table shows the price paid for the four sales, along with the average detached price in the Elmbridge local authority area for the corresponding sale date. Most of the four 20 KNOWLE PARK 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
2017 13 NOV	£1,125,000	£1,281,200	12% below HPI
2010 26 JUL	£950,000	£876,021	8% above HPI
2005 20 JUL	£645,000	£651,083	1% below HPI
2003 27 AUG	£520,000	£620,729	16% below HPI

20 KNOWLE PARK 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 four 20 KNOWLE PARK sales between August 2003 and November 2017 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 July 2010 sale was for 8% above the HPI. So the extrapolation line tracks at 8% above the HPI over time, until the November 2017 sale, where it falls to 12% below the HPI. The line then continues to track at 12% below the HPI.

What might 20 KNOWLE PARK be worth now?

20 KNOWLE PARK might now be worth an estimated £1,278,998.

This is based on house price inflation of 13.7%, between November 2017 and December 2024, 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 13.7% inflationary increase is applied to the most recent sale price for 20 KNOWLE PARK of £1,125,000 on 13th November 2017. For the value to have increased from £1,125,000 to £1,278,998 over the six years and eleven months to December 2024, the following assumptions must hold true:

• The value of 20 KNOWLE PARK has moved in line with the HPI for detached houses in the Elmbridge local authority area.
• The November 2017 sale price of £1,125,000 represented a fair market value for the property.
• The size, condition, and specification of 20 KNOWLE PARK has not materially changed since November 2017.

How Large is 20 KNOWLE PARK?

20 KNOWLE PARK is 156m², which includes one extension, according to the EPC inspection conducted in March 2010. This puts it in the smallest 20% of detached houses houses in Cobham, based on EPC data. The below chart shows the distribution of detached houses houses by size in Cobham, and where 20 KNOWLE PARK lies on this distribution: 19% of detached houses houses are smaller than 20 KNOWLE PARK, and 81% of houses are larger. Note that EPC data is not available for all properties in Cobham.

20 KNOWLE PARK: Plot and Title Map

20 KNOWLE PARK sits on a plot of roughly 0.253 of an acre, or 1,022m². The below map shows the location of 20 KNOWLE PARK, 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 20 KNOWLE PARK). 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 20 KNOWLE PARK?

20 KNOWLE PARK is located in COBHAM, in the KT11 postcode district. The below map shows the position of No. 20 on KNOWLE PARK.