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.
31 MOUNT PLEASANT is a very small semi-detached house of 88m², built sometime between 1950 and 1966, which could now be worth an estimated £493,216. It was last sold for £227,500 in August 2006, which was around 15% below the average August 2006 semi-detached price in the Hillingdon 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.
Land registry data shows three sales for 31 MOUNT PLEASANT since 1st January 1995. The below table shows the price paid for the three sales, along with the average semi-detached price in the Hillingdon local authority area for the corresponding sale date. All of the three 31 MOUNT PLEASANT 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 |
|---|---|---|---|
2006 20 AUG | £227,500 | £267,662 | 15% below HPI |
2000 28 JUN | £129,000 | £153,928 | 16% below HPI |
1998 27 NOV | £92,000 | £119,119 | 23% below HPI |
The below graph shows the average semi-detached house price in the Hillingdon local authority area over time, sourced from the HPI. The three 31 MOUNT PLEASANT sales between November 1998 and August 2006 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 2000 sale was for 16% below the HPI. So the extrapolation line tracks at 16% below the HPI over time, until the August 2006 sale, where it rises to 15% below the HPI. The line then continues to track at 15% below the HPI.

31 MOUNT PLEASANT might now be worth an estimated £493,216.
This is based on house price inflation of 116.8%, between August 2006 and May 2026, for semi-detached houses, in the Hillingdon local authority area, as calculated by the Office for National Statistics and published in their UK House Price Index (HPI).
The 116.8% inflationary increase is applied to the most recent sale price for 31 MOUNT PLEASANT of £227,500 on 20th August 2006. For the value to have increased from £227,500 to £493,216 over the twenty years and three months to May 2026, the following assumptions must hold true:
31 MOUNT PLEASANT is 88m² according to the EPC inspection conducted in July 2025. This puts it in the smallest 20% of semi-detached houses houses in Harefield, based on EPC data. The below chart shows the distribution of semi-detached houses houses by size in Harefield, and where 31 MOUNT PLEASANT lies on this distribution: 14% of semi-detached houses houses are smaller than 31 MOUNT PLEASANT, and 86% of houses are larger. Note that EPC data is not available for all properties in Harefield.

31 MOUNT PLEASANT sits on a plot of roughly 0.055 of an acre, or 221m². The below map shows the location of 31 MOUNT PLEASANT, 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 31 MOUNT PLEASANT). 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.

31 MOUNT PLEASANT is located in HAREFIELD, in the UB9 postcode district. The below map shows the position of No. 31 on MOUNT PLEASANT.

Most recent sales first: