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.
21 COOTHAM GREEN is a very small detached house of 62m², built sometime between 1991 and 1995, which could now be worth an estimated £338,019. It was last sold for £275,000 in June 2018, which was around 57% below the average June 2018 detached price in the Horsham local authority area. The most recent EPC inspection was January 2014, where the current energy rating was D, and the potential energy rating was B.
Land registry data shows five sales for 21 COOTHAM GREEN since 1st January 1995. The below table shows the price paid for the five sales, along with the average detached price in the Horsham local authority area for the corresponding sale date. All of the five 21 COOTHAM GREEN 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 |
|---|---|---|---|
2018 1 JUN | £275,000 | £643,348 | 57% below HPI |
2014 15 JUL | £250,000 | £541,829 | 54% below HPI |
2005 24 JUN | £195,000 | £389,752 | 50% below HPI |
2001 30 JUL | £132,500 | £275,384 | 52% below HPI |
1996 12 DEC | £78,000 | £144,911 | 46% below HPI |
The below graph shows the average detached house price in the Horsham local authority area over time, sourced from the HPI. The five 21 COOTHAM GREEN sales between December 1996 and June 2018 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 2014 sale was for 54% below the HPI. So the extrapolation line tracks at 54% below the HPI over time, until the June 2018 sale, where it falls to 57% below the HPI. The line then continues to track at 57% below the HPI.

21 COOTHAM GREEN might now be worth an estimated £338,019.
This is based on house price inflation of 22.9%, between June 2018 and August 2025, for detached houses, in the Horsham local authority area, as calculated by the Office for National Statistics and published in their UK House Price Index (HPI).
The 22.9% inflationary increase is applied to the most recent sale price for 21 COOTHAM GREEN of £275,000 on 1st June 2018. For the value to have increased from £275,000 to £338,019 over the six years and ten months to August 2025, the following assumptions must hold true:
21 COOTHAM GREEN is 62m² according to the EPC inspection conducted in January 2014. This puts it in the smallest 10% of detached houses houses in Cootham, based on EPC data. The below chart shows the distribution of detached houses houses by size in Cootham, and where 21 COOTHAM GREEN lies on this distribution: Less than 1% of detached houses houses are smaller than 21 COOTHAM GREEN, and more than 99% of houses are larger. Note that EPC data is not available for all properties in Cootham.

21 COOTHAM GREEN sits on a plot of roughly 0.043 of an acre, or 174m². The below map shows the location of 21 COOTHAM GREEN, 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 21 COOTHAM GREEN). 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.

21 COOTHAM GREEN is located in COOTHAM, in the RH20 postcode district. The below map shows the position of No. 21 on COOTHAM GREEN.

Most recent sales first: