179, BLACKFEN ROAD, SIDCUP, DA15 8PY - £470,000

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.

179 BLACKFEN ROAD is a very small semi-detached house of 97m², built sometime between 1930 and 1949, which could now be worth an estimated £479,968. It was last sold for £470,000 in February 2025, which was around 9% below the average February 2025 semi-detached price in the Bexley local authority area. The most recent EPC inspection was August 2017, where the current energy rating was E, and the potential energy rating was B.

179 BLACKFEN ROAD Sold Prices

Land registry data shows three sales for 179 BLACKFEN ROAD since 1^st January 1995. The below table shows the price paid for the three sales, along with the average semi-detached price in the Bexley local authority area for the corresponding sale date. One of the three 179 BLACKFEN ROAD sales was for below the average price, whilst two were for above 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
2025 10 FEB	£470,000	£516,679	9% below HPI
2005 23 SEP	£249,000	£228,186	9% above HPI
1997 16 MAY	£118,000	£86,499	36% above HPI

179 BLACKFEN ROAD Price Paid vs. HPI Average

The below graph shows the average semi-detached house price in the Bexley local authority area over time, sourced from the HPI. The three 179 BLACKFEN ROAD sales between May 1997 and February 2025 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 September 2005 sale was for 9% above the HPI. So the extrapolation line tracks at 9% above the HPI over time, until the February 2025 sale, where it falls to 9% below the HPI. The line then continues to track at 9% below the HPI.

What might 179 BLACKFEN ROAD be worth now?

179 BLACKFEN ROAD might now be worth an estimated £479,968.

This is based on house price inflation of 2.1%, between February 2025 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 2.1% inflationary increase is applied to the most recent sale price for 179 BLACKFEN ROAD of £470,000 on 10th February 2025. For the value to have increased from £470,000 to £479,968 over the nine months to May 2026, the following assumptions must hold true:

• The value of 179 BLACKFEN ROAD has moved in line with the HPI for semi-detached houses in the Bexley local authority area.
• The February 2025 sale price of £470,000 represented a fair market value for the property.
• The size, condition, and specification of 179 BLACKFEN ROAD has not materially changed since February 2025.

How Large is 179 BLACKFEN ROAD?

179 BLACKFEN ROAD is 97m² according to the EPC inspection conducted in August 2017. This puts it in the smallest 20% 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 179 BLACKFEN ROAD lies on this distribution: 17% of semi-detached houses houses are smaller than 179 BLACKFEN ROAD, and 83% of houses are larger. Note that EPC data is not available for all properties in London.

179 BLACKFEN ROAD: Plot and Title Map

179 BLACKFEN ROAD sits on a plot of roughly 0.110 of an acre, or 445m². The below map shows the location of 179 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 179 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.

Where is 179 BLACKFEN ROAD?

179 BLACKFEN ROAD is located in SIDCUP, in the DA15 postcode district. The below map shows the position of No. 179 on BLACKFEN ROAD.