12, ASHDOWN, MAIDENHEAD, SL6 8HU - £1,000,000

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.

12 ASHDOWN is a large extended detached house of 164m², built sometime between 1976 and 1982, which could now be worth an estimated £995,670. It was last sold for £1,000,000 in April 2026, which was around 12% below the average April 2026 detached price in the Windsor and Maidenhead local authority area. The most recent EPC inspection was January 2025, where the current energy rating was C, and the potential energy rating was B.

12 ASHDOWN Sold Prices

Land registry data shows two sales for 12 ASHDOWN 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 12 ASHDOWN 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
2026 1 APR	£1,000,000	£1,131,740	12% below HPI
2019 22 NOV	£655,000	£938,752	30% below HPI

12 ASHDOWN 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 12 ASHDOWN sales from November 2019 and April 2026 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 November 2019 sale was for 30% below the HPI. So the extrapolation line tracks at 30% below the HPI over time, until the April 2026 sale, where it rises to 12% below the HPI. The line then continues to track at 12% below the HPI.

What might 12 ASHDOWN be worth now?

12 ASHDOWN might now be worth an estimated £995,670.

This is based on house price deflation of 0.4%, between April 2026 and July 2026, 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 0.4% deflationary decrease is applied to the most recent sale price for 12 ASHDOWN of £1,000,000 on 1st April 2026. For the value to have decreased from £1,000,000 to £995,670 over the nine months to July 2026, the following assumptions must hold true:

• The value of 12 ASHDOWN has moved in line with the HPI for detached houses in the Windsor and Maidenhead local authority area.
• The April 2026 sale price of £1,000,000 represented a fair market value for the property.
• The size, condition, and specification of 12 ASHDOWN has not materially changed since April 2026.

How Large is 12 ASHDOWN?

12 ASHDOWN is 164m², which includes one extension, according to the EPC inspection conducted in January 2025. This puts it in the largest 40% of detached houses houses in Maidenhead, based on EPC data. The below chart shows the distribution of detached houses houses by size in Maidenhead, and where 12 ASHDOWN lies on this distribution: 67% of detached houses houses are smaller than 12 ASHDOWN, and 33% of houses are larger. Note that EPC data is not available for all properties in Maidenhead.

12 ASHDOWN: Plot and Title Map

12 ASHDOWN sits on a plot of roughly 0.278 of an acre, or 1,125m². The below map shows the location of 12 ASHDOWN, 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 12 ASHDOWN). 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 12 ASHDOWN?

12 ASHDOWN is located in MAIDENHEAD, in the SL6 postcode district. The below map shows the position of No. 12 on ASHDOWN.