IMBERS, GRUBWOOD LANE, COOKHAM, MAIDENHEAD, SL6 9UD - £1,690,000

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.

IMBERS is a very large extended detached house of 326m², built sometime between 1976 and 1982, which could now be worth an estimated £1,948,600. It was last sold for £1,690,000 in August 2017, which was around 72% above the average August 2017 detached price in the Windsor and Maidenhead local authority area. The most recent EPC inspection was July 2025, where the current energy rating was C, and the potential energy rating was C.

IMBERS Sold Prices

Land registry data shows four sales for IMBERS since 1^st January 1995. The below table shows the price paid for the four sales, along with the average detached price in the Windsor and Maidenhead local authority area for the corresponding sale date. All of the four IMBERS sales were for above 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 18 AUG	£1,690,000	£981,676	72% above HPI
2010 28 JUN	£1,500,000	£627,810	139% above HPI
2005 10 JUN	£765,000	£524,461	46% above HPI
2003 17 DEC	£735,000	£487,185	51% above HPI

IMBERS 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 four IMBERS sales between December 2003 and August 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 June 2010 sale was for 139% above the HPI. So the extrapolation line tracks at 139% above the HPI over time, until the August 2017 sale, where it falls to 72% above the HPI. The line then continues to track at 72% above the HPI.

What might IMBERS be worth now?

IMBERS might now be worth an estimated £1,948,600.

This is based on house price inflation of 15.3%, between August 2017 and July 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 15.3% inflationary increase is applied to the most recent sale price for IMBERS of £1,690,000 on 18th August 2017. For the value to have increased from £1,690,000 to £1,948,600 over the eight years and one month to July 2025, the following assumptions must hold true:

• The value of IMBERS has moved in line with the HPI for detached houses in the Windsor and Maidenhead local authority area.
• The August 2017 sale price of £1,690,000 represented a fair market value for the property.
• The size, condition, and specification of IMBERS has not materially changed since August 2017.

How Large is IMBERS?

IMBERS is 326m², which includes two extensions, according to the EPC inspection conducted in July 2025. This puts it in the largest 20% of detached houses houses in Cookham, based on EPC data. The below chart shows the distribution of detached houses houses by size in Cookham, and where IMBERS lies on this distribution: 87% of detached houses houses are smaller than IMBERS, and 13% of houses are larger. Note that EPC data is not available for all properties in Cookham.

IMBERS: Plot and Title Map

IMBERS sits on a plot of roughly 0.336 of an acre, or 1,359m². The below map shows the location of IMBERS, 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 IMBERS). 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 IMBERS?

IMBERS is located on GRUBWOOD LANE in COOKHAM, in the SL6 postcode district. The below map shows the position of IMBERS on GRUBWOOD LANE.