20, THORNTON AVENUE, WARSASH, SOUTHAMPTON, SO31 9FJ - £1,300,000

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

20 THORNTON AVENUE is a large extended detached house of 159m², built sometime between 1930 and 1949. It was last sold for £1,300,000 in April 2021, which was around 168% above the average April 2021 detached price in the Fareham local authority area. The most recent EPC inspection was July 2015, where the current energy rating was D, and the potential energy rating was C.

20 THORNTON AVENUE Sold Prices

Land registry data shows three sales for 20 THORNTON AVENUE since 1^st January 1995. The below table shows the price paid for the three sales, along with the average detached price in the Fareham local authority area for the corresponding sale date. All of the three 20 THORNTON AVENUE 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 15 APR	£1,300,000	£484,334	168% above HPI
2016 10 JUN	£820,000	£415,340	97% above HPI
2014 7 MAR	£710,000	£342,429	107% above HPI

20 THORNTON AVENUE Price Paid vs. HPI Average

The below graph shows the average detached house price in the Fareham local authority area over time, sourced from the HPI. The three 20 THORNTON AVENUE sales between March 2014 and April 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 June 2016 sale was for 97% above the HPI. So the extrapolation line tracks at 97% above the HPI over time, until the April 2021 sale, where it rises to 168% above the HPI. The line then continues to track at 168% above the HPI.

What might 20 THORNTON AVENUE be worth now?

20 THORNTON AVENUE might now be worth an estimated £1,469,573.

This is based on house price inflation of 13%, between April 2021 and December 2024, for detached houses, in the Fareham local authority area, as calculated by the Office for National Statistics and published in their UK House Price Index (HPI).

The 13% inflationary increase is applied to the most recent sale price for 20 THORNTON AVENUE of £1,300,000 on 15th April 2021. For the value to have increased from £1,300,000 to £1,469,573 over the two years and four months to December 2024, the following assumptions must hold true:

• The value of 20 THORNTON AVENUE has moved in line with the HPI for detached houses in the Fareham local authority area.
• The April 2021 sale price of £1,300,000 represented a fair market value for the property.
• The size, condition, and specification of 20 THORNTON AVENUE has not materially changed since April 2021.

How Large is 20 THORNTON AVENUE?

20 THORNTON AVENUE is 159m², which includes one extension, according to the EPC inspection conducted in July 2015. This puts it in the largest 30% of detached houses houses in Warsash, based on EPC data. The below chart shows the distribution of detached houses houses by size in Warsash, and where 20 THORNTON AVENUE lies on this distribution: 75% of detached houses houses are smaller than 20 THORNTON AVENUE, and 24% of houses are larger. Note that EPC data is not available for all properties in Warsash.

20 THORNTON AVENUE: Plot and Title Map

20 THORNTON AVENUE sits on a plot of roughly 0.273 of an acre, or 1,105m². The below map shows the location of 20 THORNTON AVENUE, 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 THORNTON AVENUE). 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 THORNTON AVENUE?

20 THORNTON AVENUE is located in WARSASH, in the SO31 postcode district. The below map shows the position of No. 20 on THORNTON AVENUE.