21, CASTELL CLOSE, HILPERTON, TROWBRIDGE, BA14 7UJ - £408,000

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

21 CASTELL CLOSE is a very large extended detached house of 150m², built sometime between 1996 and 2002. It was last sold for £408,000 in February 2017, which was around 1% below the average February 2017 detached price in the Wiltshire local authority area. The most recent EPC inspection was November 2016, where the current energy rating was D, and the potential energy rating was B.

21 CASTELL CLOSE Sold Prices

Land registry data shows two sales for 21 CASTELL CLOSE since 1^st January 1995. The below table shows the price paid for the two sales, along with the average detached price in the Wiltshire local authority area for the corresponding sale date. One of the two 21 CASTELL CLOSE sales was for below the average price, whilst the other was 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
2017 10 FEB	£408,000	£411,323	1% below HPI
2002 22 NOV	£248,995	£247,155	1% above HPI

21 CASTELL CLOSE 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 two 21 CASTELL CLOSE sales from November 2002 and February 2017 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 November 2002 sale was for 1% above the HPI. So the extrapolation line tracks at 1% above the HPI over time, until the February 2017 sale, where it falls to 1% below the HPI. The line then continues to track at 1% below the HPI.

What might 21 CASTELL CLOSE be worth now?

21 CASTELL CLOSE might now be worth an estimated £515,519.

This is based on house price inflation of 26.4%, between February 2017 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 26.4% inflationary increase is applied to the most recent sale price for 21 CASTELL CLOSE of £408,000 on 10th February 2017. For the value to have increased from £408,000 to £515,519 over the six years and two months to December 2024, the following assumptions must hold true:

• The value of 21 CASTELL CLOSE has moved in line with the HPI for detached houses in the Wiltshire local authority area.
• The February 2017 sale price of £408,000 represented a fair market value for the property.
• The size, condition, and specification of 21 CASTELL CLOSE has not materially changed since February 2017.

How Large is 21 CASTELL CLOSE?

21 CASTELL CLOSE is 150m², which includes one extension, according to the EPC inspection conducted in November 2016. This puts it in the largest 20% of detached houses houses in Trowbridge, based on EPC data. The below chart shows the distribution of detached houses houses by size in Trowbridge, and where 21 CASTELL CLOSE lies on this distribution: 82% of detached houses houses are smaller than 21 CASTELL CLOSE, and 17% of houses are larger. Note that EPC data is not available for all properties in Trowbridge.

21 CASTELL CLOSE: Plot and Title Map

21 CASTELL CLOSE sits on a plot of roughly 0.102 of an acre, or 411m². The below map shows the location of 21 CASTELL 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 21 CASTELL 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 21 CASTELL CLOSE?

21 CASTELL CLOSE is located in HILPERTON, in the BA14 postcode district. The below map shows the position of No. 21 on CASTELL CLOSE.