25, WILLIAM STREET, CALNE, SN11 9BE - £229,000

Based on the January 2025 Price Paid Data (released on 3rd March 2025), the December 2024 House Price Index (released on 19th February 2025), and the January 2025 Energy Performance of Buildings Data (released on 27th February 2025). Sources

25 WILLIAM STREET is a large detached house of 143m², built sometime between 1950 and 1966, which could now be worth an estimated £234,193. It was last sold for £229,000 in November 2023, which was around 55% below the average November 2023 detached price in the Wiltshire local authority area. The most recent EPC inspection was September 2023, where the current energy rating was C, and the potential energy rating was C.

25 WILLIAM STREET Sold Prices

Land registry data shows three sales for 25 WILLIAM STREET since 1^st January 1995. The below table shows the price paid for the three sales, along with the average detached price in the Wiltshire local authority area for the corresponding sale date. All of the three 25 WILLIAM STREET 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
2023 7 NOV	£229,000	£508,193	55% below HPI
2010 10 SEP	£232,500	£330,549	30% below HPI
1998 15 APR	£89,500	£127,708	30% below HPI

25 WILLIAM STREET Price Paid vs. HPI Average

The below graph shows the average detached house price in the Wiltshire local authority area over time, sourced from the HPI. The three 25 WILLIAM STREET sales between April 1998 and November 2023 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 2010 sale was for 30% below the HPI. So the extrapolation line tracks at 30% below the HPI over time, until the November 2023 sale, where it falls to 55% below the HPI. The line then continues to track at 55% below the HPI.

What might 25 WILLIAM STREET be worth now?

25 WILLIAM STREET might now be worth an estimated £234,193.

This is based on house price inflation of 2.3%, between November 2023 and December 2024, for 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 2.3% inflationary increase is applied to the most recent sale price for 25 WILLIAM STREET of £229,000 on 7th November 2023. For the value to have increased from £229,000 to £234,193 over the eleven months to December 2024, the following assumptions must hold true:

• The value of 25 WILLIAM STREET has moved in line with the HPI for detached houses in the Wiltshire local authority area.
• The November 2023 sale price of £229,000 represented a fair market value for the property.
• The size, condition, and specification of 25 WILLIAM STREET has not materially changed since November 2023.

How Large is 25 WILLIAM STREET?

25 WILLIAM STREET is 143m² according to the EPC inspection conducted in September 2023. This puts it in the largest 30% of detached houses houses in Calne, based on EPC data. The below chart shows the distribution of detached houses houses by size in Calne, and where 25 WILLIAM STREET lies on this distribution: 76% of detached houses houses are smaller than 25 WILLIAM STREET, and 23% of houses are larger. Note that EPC data is not available for all properties in Calne.

25 WILLIAM STREET: Plot and Title Map

25 WILLIAM STREET sits on a plot of roughly 0.164 of an acre, or 662m². The below map shows the location of 25 WILLIAM STREET, 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 25 WILLIAM STREET). 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 25 WILLIAM STREET?

25 WILLIAM STREET is located in CALNE, in the SN11 postcode district. The below map shows the position of No. 25 on WILLIAM STREET.