3, MARWELL, WESTERHAM, TN16 1SB - £858,001

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.

3 MARWELL is a midsized detached house of 151m², built sometime between 1983 and 1990, which could now be worth an estimated £998,515. It was last sold for £858,001 in September 2021, which was around 3% below the average September 2021 detached price in the Sevenoaks local authority area. The most recent EPC inspection was January 2026, where the current energy rating was D, and the potential energy rating was C.

3 MARWELL Sold Prices

Land registry data shows two sales for 3 MARWELL since 1^st January 1995. The below table shows the price paid for the two sales, along with the average detached price in the Sevenoaks local authority area for the corresponding sale date. Both of the two 3 MARWELL 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
2021 20 SEP	£858,001	£888,613	3% below HPI
2015 24 SEP	£620,000	£723,169	14% below HPI

3 MARWELL Price Paid vs. HPI Average

The below graph shows the average detached house price in the Sevenoaks local authority area over time, sourced from the HPI. The two 3 MARWELL sales from September 2015 and September 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 September 2015 sale was for 14% below the HPI. So the extrapolation line tracks at 14% below the HPI over time, until the September 2021 sale, where it rises to 3% below the HPI. The line then continues to track at 3% below the HPI.

What might 3 MARWELL be worth now?

3 MARWELL might now be worth an estimated £998,515.

This is based on house price inflation of 16.4%, between September 2021 and May 2026, for detached houses, in the Sevenoaks local authority area, as calculated by the Office for National Statistics and published in their UK House Price Index (HPI).

The 16.4% inflationary increase is applied to the most recent sale price for 3 MARWELL of £858,001 on 20th September 2021. For the value to have increased from £858,001 to £998,515 over the five years and four months to May 2026, the following assumptions must hold true:

• The value of 3 MARWELL has moved in line with the HPI for detached houses in the Sevenoaks local authority area.
• The September 2021 sale price of £858,001 represented a fair market value for the property.
• The size, condition, and specification of 3 MARWELL has not materially changed since September 2021.

How Large is 3 MARWELL?

3 MARWELL is 151m² according to the EPC inspection conducted in January 2026. This puts it in the smallest 50% of detached houses houses in Westerham, based on EPC data. The below chart shows the distribution of detached houses houses by size in Westerham, and where 3 MARWELL lies on this distribution: 47% of detached houses houses are smaller than 3 MARWELL, and 53% of houses are larger. Note that EPC data is not available for all properties in Westerham.

3 MARWELL: Plot and Title Map

3 MARWELL sits on a plot of roughly 0.142 of an acre, or 576m². The below map shows the location of 3 MARWELL, 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 3 MARWELL). 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 3 MARWELL?

3 MARWELL is located in WESTERHAM, in the TN16 postcode district. The below map shows the position of No. 3 on MARWELL.