20, CLAY CLOSE, DILTON MARSH, WESTBURY, BA13 4DU - £245,000

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 CLAY CLOSE is a very small semi-detached house of 81m², built sometime between 1976 and 1982, which could now be worth an estimated £241,187. It was last sold for £245,000 in December 2025, which was around 26% below the average December 2025 semi-detached price in the Wiltshire local authority area. The most recent EPC inspection was December 2021, where the current energy rating was C, and the potential energy rating was B.

20 CLAY CLOSE Sold Prices

Land registry data shows four sales for 20 CLAY CLOSE since 1^st January 1995. The below table shows the price paid for the four sales, along with the average semi-detached price in the Wiltshire local authority area for the corresponding sale date. All of the four 20 CLAY CLOSE 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
2025 19 DEC	£245,000	£329,657	26% below HPI
2024 24 SEP	£235,000	£319,623	26% below HPI
2022 31 MAR	£240,000	£301,789	20% below HPI
2007 31 MAY	£135,000	£206,317	35% below HPI

20 CLAY CLOSE Price Paid vs. HPI Average

The below graph shows the average semi-detached house price in the Wiltshire local authority area over time, sourced from the HPI. The four 20 CLAY CLOSE sales between May 2007 and December 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 2024 sale was for 26% below the HPI. So the extrapolation line tracks at 26% below the HPI over time, until the December 2025 sale, which was also at 26% below the HPI.

What might 20 CLAY CLOSE be worth now?

20 CLAY CLOSE might now be worth an estimated £241,187.

This is based on house price deflation of 1.6%, between December 2025 and April 2026, for semi-detached houses, in the Wiltshire local authority area, as calculated by the Office for National Statistics and published in their UK House Price Index (HPI).

The 1.6% deflationary decrease is applied to the most recent sale price for 20 CLAY CLOSE of £245,000 on 19th December 2025. For the value to have decreased from £245,000 to £241,187 over the one year and eight months to April 2026, the following assumptions must hold true:

• The value of 20 CLAY CLOSE has moved in line with the HPI for semi-detached houses in the Wiltshire local authority area.
• The December 2025 sale price of £245,000 represented a fair market value for the property.
• The size, condition, and specification of 20 CLAY CLOSE has not materially changed since December 2025.

How Large is 20 CLAY CLOSE?

20 CLAY CLOSE is 81m² according to the EPC inspection conducted in December 2021. This puts it in the smallest 10% of semi-detached houses houses in Dilton Marsh, based on EPC data. The below chart shows the distribution of semi-detached houses houses by size in Dilton Marsh, and where 20 CLAY CLOSE lies on this distribution: 9% of semi-detached houses houses are smaller than 20 CLAY CLOSE, and 91% of houses are larger. Note that EPC data is not available for all properties in Dilton Marsh.

20 CLAY CLOSE: Plot and Title Map

20 CLAY CLOSE sits on a plot of roughly 0.043 of an acre, or 175m². The below map shows the location of 20 CLAY CLOSE, 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 CLAY CLOSE). 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 CLAY CLOSE?

20 CLAY CLOSE is located in DILTON MARSH, in the BA13 postcode district. The below map shows the position of No. 20 on CLAY CLOSE.