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.
123 BLACKFEN ROAD is a very small semi-detached house of 74m², built sometime between 1930 and 1949, which could now be worth an estimated £564,248. It was last sold for £210,000 in January 2003, which was around 9% above the average January 2003 semi-detached price in the Bexley local authority area. The most recent EPC inspection was August 2020, where the current energy rating was D, and the potential energy rating was B.
Land registry data shows four sales for 123 BLACKFEN ROAD since 1st January 1995. The below table shows the price paid for the four sales, along with the average semi-detached price in the Bexley local authority area for the corresponding sale date. two of the four 123 BLACKFEN ROAD sales were for above the average price, and four 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 |
---|---|---|---|
2003 3 JAN | £210,000 | £193,388 | ![]() 9% above HPI |
2001 6 AUG | £159,995 | £148,607 | ![]() 8% above HPI |
2001 25 JUN | £85,000 | £141,687 | ![]() 40% below HPI |
2001 12 APR | £85,000 | £139,871 | ![]() 39% below HPI |
The below graph shows the average semi-detached house price in the Bexley local authority area over time, sourced from the HPI. The four 123 BLACKFEN ROAD sales between April 2001 and January 2003 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 August 2001 sale was for 8% above the HPI. So the extrapolation line tracks at 8% above the HPI over time, until the January 2003 sale, where it rises to 9% above the HPI. The line then continues to track at 9% above the HPI.
123 BLACKFEN ROAD might now be worth an estimated £564,248.
This is based on house price inflation of 168.7%, between January 2003 and February 2025, for semi-detached houses, in the Bexley local authority area, as calculated by the Office for National Statistics and published in their UK House Price Index (HPI).
The 168.7% inflationary increase is applied to the most recent sale price for 123 BLACKFEN ROAD of £210,000 on 3rd January 2003. For the value to have increased from £210,000 to £564,248 over the 21 years and eleven months to February 2025, the following assumptions must hold true:
123 BLACKFEN ROAD is 74m² according to the EPC inspection conducted in August 2020. This puts it in the smallest 10% of semi-detached houses houses in London, based on EPC data. The below chart shows the distribution of semi-detached houses houses by size in London, and where 123 BLACKFEN ROAD lies on this distribution: 5% of semi-detached houses houses are smaller than 123 BLACKFEN ROAD, and 95% of houses are larger. Note that EPC data is not available for all properties in London.
123 BLACKFEN ROAD sits on a plot of roughly 0.076 of an acre, or 309m². The below map shows the location of 123 BLACKFEN ROAD, 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 123 BLACKFEN ROAD). 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.
123 BLACKFEN ROAD is located in SIDCUP, in the DA15 postcode district. The below map shows the position of No. 123 on BLACKFEN ROAD.
Most recent sales first: