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.
70 HARMONDSWORTH LANE is a very small extended detached house of 54m², built sometime between 1900 and 1929, which could now be worth an estimated £529,309. It was last sold for £289,770 in September 2010, which was around 43% below the average September 2010 detached price in the Hillingdon local authority area. The most recent EPC inspection was September 2010, where the current energy rating was D, and the potential energy rating was D.
Land registry data shows two sales for 70 HARMONDSWORTH LANE since 1st January 1995. The below table shows the price paid for the two sales, along with the average detached price in the Hillingdon local authority area for the corresponding sale date. Both of the two 70 HARMONDSWORTH LANE 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 |
|---|---|---|---|
2010 3 SEP | £289,770 | £509,414 | 43% below HPI |
2001 14 DEC | £142,000 | £324,314 | 56% below HPI |
The below graph shows the average detached house price in the Hillingdon local authority area over time, sourced from the HPI. The two 70 HARMONDSWORTH LANE sales from December 2001 and September 2010 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 December 2001 sale was for 56% below the HPI. So the extrapolation line tracks at 56% below the HPI over time, until the September 2010 sale, where it rises to 43% below the HPI. The line then continues to track at 43% below the HPI.

70 HARMONDSWORTH LANE might now be worth an estimated £529,309.
This is based on house price inflation of 82.7%, between September 2010 and May 2026, for 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 82.7% inflationary increase is applied to the most recent sale price for 70 HARMONDSWORTH LANE of £289,770 on 3rd September 2010. For the value to have increased from £289,770 to £529,309 over the sixteen years and four months to May 2026, the following assumptions must hold true:
70 HARMONDSWORTH LANE is 54m², which includes one extension, according to the EPC inspection conducted in September 2010. This puts it in the smallest 10% of detached houses houses in London, based on EPC data. The below chart shows the distribution of detached houses houses by size in London, and where 70 HARMONDSWORTH LANE lies on this distribution: 1% of detached houses houses are smaller than 70 HARMONDSWORTH LANE, and 99% of houses are larger. Note that EPC data is not available for all properties in London.

70 HARMONDSWORTH LANE sits on a plot of roughly 0.079 of an acre, or 318m². The below map shows the location of 70 HARMONDSWORTH LANE, 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 70 HARMONDSWORTH LANE). 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.

70 HARMONDSWORTH LANE is located in HARMONDSWORTH, in the UB7 postcode district. The below map shows the position of No. 70 on HARMONDSWORTH LANE.

Most recent sales first: