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.
WESTLAKE HOUSE is a large extended semi-detached house of 161m², built sometime between 1900 and 1929, which could now be worth an estimated £878,614. It was last sold for £765,000 in November 2021, which was around 82% above the average November 2021 semi-detached price in the Horsham local authority area. The most recent EPC inspection was March 2020, where the current energy rating was C, and the potential energy rating was C.
Land registry data shows three sales for WESTLAKE HOUSE since 1st January 1995. The below table shows the price paid for the three sales, along with the average semi-detached price in the Horsham local authority area for the corresponding sale date. All of the three WESTLAKE HOUSE sales 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 |
|---|---|---|---|
2021 19 NOV | £765,000 | £420,023 | 82% above HPI |
2010 12 FEB | £510,000 | £262,847 | 94% above HPI |
2001 2 APR | £308,500 | £150,493 | 105% above HPI |
The below graph shows the average semi-detached house price in the Horsham local authority area over time, sourced from the HPI. The three WESTLAKE HOUSE sales between April 2001 and November 2021 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 February 2010 sale was for 94% above the HPI. So the extrapolation line tracks at 94% above the HPI over time, until the November 2021 sale, where it falls to 82% above the HPI. The line then continues to track at 82% above the HPI.

WESTLAKE HOUSE might now be worth an estimated £878,614.
This is based on house price inflation of 14.9%, between November 2021 and August 2025, for semi-detached houses, in the Horsham local authority area, as calculated by the Office for National Statistics and published in their UK House Price Index (HPI).
The 14.9% inflationary increase is applied to the most recent sale price for WESTLAKE HOUSE of £765,000 on 19th November 2021. For the value to have increased from £765,000 to £878,614 over the four years and three months to August 2025, the following assumptions must hold true:
WESTLAKE HOUSE is 161m², which includes one extension, according to the EPC inspection conducted in March 2020. This puts it in the largest 30% of semi-detached houses houses in Steyning, based on EPC data. The below chart shows the distribution of semi-detached houses houses by size in Steyning, and where WESTLAKE HOUSE lies on this distribution: 78% of semi-detached houses houses are smaller than WESTLAKE HOUSE, and 22% of houses are larger. Note that EPC data is not available for all properties in Steyning.

WESTLAKE HOUSE sits on a plot of roughly 0.065 of an acre, or 265m². The below map shows the location of WESTLAKE HOUSE, 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 WESTLAKE HOUSE). 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.

WESTLAKE HOUSE is located on COLLEGE HILL in STEYNING, in the BN44 postcode district. The below map shows the position of WESTLAKE HOUSE on COLLEGE HILL.

Most recent sales first: