20, STEEPDOWN ROAD, SOMPTING, LANCING, BN15 0LJ - £365,000

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.

20 STEEPDOWN ROAD is a very small semi-detached house of 63m², built sometime between 1967 and 1975, which could now be worth an estimated £361,923. It was last sold for £365,000 in January 2026, which was around 17% below the average January 2026 semi-detached price in the Adur local authority area. The most recent EPC inspection was September 2025, where the current energy rating was C, and the potential energy rating was C.

20 STEEPDOWN ROAD Sold Prices

Land registry data shows three sales for 20 STEEPDOWN 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 Adur local authority area for the corresponding sale date. All of the three 20 STEEPDOWN ROAD 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
2026 14 JAN	£365,000	£441,037	17% below HPI
2018 28 SEP	£332,500	£362,307	8% below HPI
2018 20 APR	£227,500	£349,803	35% below HPI

20 STEEPDOWN ROAD Price Paid vs. HPI Average

The below graph shows the average semi-detached house price in the Adur local authority area over time, sourced from the HPI. The three 20 STEEPDOWN ROAD sales between April 2018 and January 2026 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 2018 sale was for 8% below the HPI. So the extrapolation line tracks at 8% below the HPI over time, until the January 2026 sale, where it falls to 17% below the HPI. The line then continues to track at 17% below the HPI.

What might 20 STEEPDOWN ROAD be worth now?

20 STEEPDOWN ROAD might now be worth an estimated £361,923.

This is based on house price deflation of 0.8%, between January 2026 and May 2026, for semi-detached houses, in the Adur local authority area, as calculated by the Office for National Statistics and published in their UK House Price Index (HPI).

The 0.8% deflationary decrease is applied to the most recent sale price for 20 STEEPDOWN ROAD of £365,000 on 14th January 2026. For the value to have decreased from £365,000 to £361,923 over the eight months to May 2026, the following assumptions must hold true:

• The value of 20 STEEPDOWN ROAD has moved in line with the HPI for semi-detached houses in the Adur local authority area.
• The January 2026 sale price of £365,000 represented a fair market value for the property.
• The size, condition, and specification of 20 STEEPDOWN ROAD has not materially changed since January 2026.

How Large is 20 STEEPDOWN ROAD?

20 STEEPDOWN ROAD is 63m² according to the EPC inspection conducted in September 2025. This puts it in the smallest 10% of semi-detached houses houses in Sompting, based on EPC data. The below chart shows the distribution of semi-detached houses houses by size in Sompting, and where 20 STEEPDOWN ROAD lies on this distribution: 9% of semi-detached houses houses are smaller than 20 STEEPDOWN ROAD, and 89% of houses are larger. Note that EPC data is not available for all properties in Sompting.

20 STEEPDOWN ROAD: Plot and Title Map

20 STEEPDOWN ROAD sits on a plot of roughly 0.107 of an acre, or 432m². The below map shows the location of 20 STEEPDOWN 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 20 STEEPDOWN 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 20 STEEPDOWN ROAD?

20 STEEPDOWN ROAD is located in SOMPTING, in the BN15 postcode district. The below map shows the position of No. 20 on STEEPDOWN ROAD.