19, HAM ISLAND, OLD WINDSOR, WINDSOR, SL4 2JY - £422,500

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.

19 HAM ISLAND is a very small detached house of 110m², built sometime between 1983 and 1990, which could now be worth an estimated £1,001,993. It was last sold for £422,500 in January 2003, which was around 13% below the average January 2003 detached price in the Windsor and Maidenhead local authority area. The most recent EPC inspection was July 2019, where the current energy rating was C, and the potential energy rating was B.

19 HAM ISLAND Sold Prices

Land registry data shows two sales for 19 HAM ISLAND since 1^st January 1995. The below table shows the price paid for the two sales, along with the average detached price in the Windsor and Maidenhead local authority area for the corresponding sale date. Both of the two 19 HAM ISLAND 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
2003 2 JAN	£422,500	£484,702	13% below HPI
2001 22 JUN	£355,000	£416,836	15% below HPI

19 HAM ISLAND Price Paid vs. HPI Average

The below graph shows the average detached house price in the Windsor and Maidenhead local authority area over time, sourced from the HPI. The two 19 HAM ISLAND sales from June 2001 and January 2003 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 June 2001 sale was for 15% below the HPI. So the extrapolation line tracks at 15% below the HPI over time, until the January 2003 sale, where it rises to 13% below the HPI. The line then continues to track at 13% below the HPI.

What might 19 HAM ISLAND be worth now?

19 HAM ISLAND might now be worth an estimated £1,001,993.

This is based on house price inflation of 137.2%, between January 2003 and February 2025, for detached houses, in the Windsor and Maidenhead local authority area, as calculated by the Office for National Statistics and published in their UK House Price Index (HPI).

The 137.2% inflationary increase is applied to the most recent sale price for 19 HAM ISLAND of £422,500 on 2nd January 2003. For the value to have increased from £422,500 to £1,001,993 over the 21 years and eleven months to February 2025, the following assumptions must hold true:

• The value of 19 HAM ISLAND has moved in line with the HPI for detached houses in the Windsor and Maidenhead local authority area.
• The January 2003 sale price of £422,500 represented a fair market value for the property.
• The size, condition, and specification of 19 HAM ISLAND has not materially changed since January 2003.

How Large is 19 HAM ISLAND?

19 HAM ISLAND is 110m² according to the EPC inspection conducted in July 2019. This puts it in the smallest 20% of detached houses houses in Wraysbury, based on EPC data. The below chart shows the distribution of detached houses houses by size in Wraysbury, and where 19 HAM ISLAND lies on this distribution: 18% of detached houses houses are smaller than 19 HAM ISLAND, and 81% of houses are larger. Note that EPC data is not available for all properties in Wraysbury.

19 HAM ISLAND: Plot and Title Map

19 HAM ISLAND sits on a plot of roughly 0.178 of an acre, or 719m². The below map shows the location of 19 HAM ISLAND, 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 19 HAM ISLAND). 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 19 HAM ISLAND?

19 HAM ISLAND is located in OLD WINDSOR, in the SL4 postcode district. The below map shows the position of No. 19 on HAM ISLAND.