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.
40 ADELAIDE SQUARE is a midsized extended semi-detached house of 97m², built sometime between 1900 and 1929, which could now be worth an estimated £971,609. It was last sold for £945,000 in November 2025, which was around 59% above the average November 2025 semi-detached price in the Windsor and Maidenhead local authority area. The most recent EPC inspection was April 2021, where the current energy rating was D, and the potential energy rating was C.
Land registry data shows one sale for 40 ADELAIDE SQUARE since 1st January 1995. The below table shows the price paid for the one sale, along with the average semi-detached price in the Windsor and Maidenhead local authority area for the corresponding sale date. The average price is sourced from the Office for National Statistics' House Price Index (HPI).
| Date | Price | HPI Price | Variation from HPI |
|---|---|---|---|
2025 26 NOV | £945,000 | £596,136 | 59% above HPI |
40 ADELAIDE SQUARE might now be worth an estimated £971,609.
This is based on house price inflation of 2.8%, between November 2025 and May 2026, for semi-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 2.8% inflationary increase is applied to the most recent sale price for 40 ADELAIDE SQUARE of £945,000 on 26th November 2025. For the value to have increased from £945,000 to £971,609 over the one year and six months to May 2026, the following assumptions must hold true:
40 ADELAIDE SQUARE is 97m², which includes one extension, according to the EPC inspection conducted in April 2021. This puts it in the smallest 50% of semi-detached houses in Windsor, based on EPC data. The below chart shows the distribution of semi-detached houses by size in Windsor, and where 40 ADELAIDE SQUARE lies on this distribution: 46% of semi-detached houses are smaller than 40 ADELAIDE SQUARE, and 53% of semi-detached houses are larger. Note that EPC data is not available for all properties in Windsor.

40 ADELAIDE SQUARE is located in WINDSOR, in the SL4 postcode district.
Most recent sales first: