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.
449 BLACKFEN ROAD is a very small semi-detached house of 78m², built sometime between 1950 and 1966, which could now be worth an estimated £415,925. It was last sold for £406,500 in December 2024, which was around 21% below the average December 2024 semi-detached price in the Bexley local authority area. The most recent EPC inspection was January 2024, where the current energy rating was E, and the potential energy rating was B.
Land registry data shows one sale for 449 BLACKFEN ROAD since 1st January 1995. The below table shows the price paid for the one sale, along with the average semi-detached price in the Bexley local authority area for the corresponding sale date. The average price is sourced from the Office for National Statistics' House Price Index (HPI).
| Date | Price | HPI Price | Variation from HPI |
|---|---|---|---|
2024 9 DEC | £406,500 | £515,680 | 21% below HPI |
449 BLACKFEN ROAD might now be worth an estimated £415,925.
This is based on house price inflation of 2.3%, between December 2024 and May 2026, 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 2.3% inflationary increase is applied to the most recent sale price for 449 BLACKFEN ROAD of £406,500 on 9th December 2024. For the value to have increased from £406,500 to £415,925 over the two years and seven months to May 2026, the following assumptions must hold true:
449 BLACKFEN ROAD is 78m² according to the EPC inspection conducted in January 2024. This puts it in the smallest 20% of semi-detached houses in London, based on EPC data. The below chart shows the distribution of semi-detached houses by size in London, and where 449 BLACKFEN ROAD lies on this distribution: 15% of semi-detached houses are smaller than 449 BLACKFEN ROAD, and 84% of semi-detached houses are larger. Note that EPC data is not available for all properties in London.

449 BLACKFEN ROAD sits on a plot of roughly 0.048 of an acre, or 195m².
449 BLACKFEN ROAD is located in SIDCUP, in the DA15 postcode district.
Most recent sales first: