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 BLACKDOWN is a very small semi-detached house of 74m², built sometime between 1976 and 1982, which could now be worth an estimated £295,948. It was last sold for £209,995 in October 2015, which was around 8% below the average October 2015 semi-detached price in the Milton Keynes local authority area. The most recent EPC inspection was March 2010, where the current energy rating was C, and the potential energy rating was C.
Land registry data shows three sales for 40 BLACKDOWN since 1st January 1995. The below table shows the price paid for the three sales, along with the average semi-detached price in the Milton Keynes local authority area for the corresponding sale date. All of the three 40 BLACKDOWN 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 |
|---|---|---|---|
2015 9 OCT | £209,995 | £228,120 | 8% below HPI |
2012 1 JUN | £149,995 | £167,566 | 10% below HPI |
2010 3 DEC | £153,000 | £163,407 | 6% below HPI |
The below graph shows the average semi-detached house price in the Milton Keynes local authority area over time, sourced from the HPI. The three 40 BLACKDOWN sales between December 2010 and October 2015 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 2012 sale was for 10% below the HPI. So the extrapolation line tracks at 10% below the HPI over time, until the October 2015 sale, where it rises to 8% below the HPI. The line then continues to track at 8% below the HPI.

40 BLACKDOWN might now be worth an estimated £295,948.
This is based on house price inflation of 40.9%, between October 2015 and April 2026, for semi-detached houses, in the Milton Keynes local authority area, as calculated by the Office for National Statistics and published in their UK House Price Index (HPI).
The 40.9% inflationary increase is applied to the most recent sale price for 40 BLACKDOWN of £209,995 on 9th October 2015. For the value to have increased from £209,995 to £295,948 over the eleven years and six months to April 2026, the following assumptions must hold true:
40 BLACKDOWN is 74m² according to the EPC inspection conducted in March 2010. This puts it in the smallest 10% of semi-detached houses houses in Milton Keynes, based on EPC data. The below chart shows the distribution of semi-detached houses houses by size in Milton Keynes, and where 40 BLACKDOWN lies on this distribution: 8% of semi-detached houses houses are smaller than 40 BLACKDOWN, and 92% of houses are larger. Note that EPC data is not available for all properties in Milton Keynes.

40 BLACKDOWN sits on a plot of roughly 0.078 of an acre, or 315m². The below map shows the location of 40 BLACKDOWN, 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 40 BLACKDOWN). 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.

40 BLACKDOWN is located in FULLERS SLADE, in the MK11 postcode district. The below map shows the position of No. 40 on BLACKDOWN.

Most recent sales first: