21, PORTSMOUTH AVENUE, THAMES DITTON, KT7 0RU - £1,840,000

Based on the August 2024 Price Paid Data (released on 27th September 2024), the July 2024 House Price Index (released on 18th September 2024), and the August 2024 Energy Performance of Buildings Data (released on 3rd October 2024). Sources

21 PORTSMOUTH AVENUE is a very large extended detached house of 337m², built sometime between 1967 and 1975. It was last sold for £1,840,000 in November 2017, which was around 52% above the average November 2017 detached price in the Elmbridge local authority area. The most recent EPC inspection was June 2017, where the current energy rating was C, and the potential energy rating was B.

21 PORTSMOUTH AVENUE Sold Prices

Land registry data shows two sales for 21 PORTSMOUTH AVENUE since 1^st January 1995. The below table shows the price paid for the two sales, along with the average detached price in the Elmbridge local authority area for the corresponding sale date. One of the two 21 PORTSMOUTH AVENUE sales was for above the average price, whilst the other was 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
2017 20 NOV	£1,840,000	£1,207,562	52% above HPI
2013 5 JUL	£899,950	£945,764	5% below HPI

21 PORTSMOUTH AVENUE Price Paid vs. HPI Average

The below graph shows the average detached house price in the Elmbridge local authority area over time, sourced from the HPI. The two 21 PORTSMOUTH AVENUE sales from July 2013 and November 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 July 2013 sale was for 5% below the HPI. So the extrapolation line tracks at 5% below the HPI over time, until the November 2017 sale, where it rises to 52% above the HPI. The line then continues to track at 52% above the HPI.

How Large is 21 PORTSMOUTH AVENUE?

21 PORTSMOUTH AVENUE is 337m², which includes two extensions, according to the EPC inspection conducted in June 2017. This puts it in the largest 10% of detached houses in Thames Ditton, based on EPC data. The below chart shows the distribution of detached houses by size in Thames Ditton, and where 21 PORTSMOUTH AVENUE lies on this distribution: 98% of detached houses are smaller than 21 PORTSMOUTH AVENUE, and 2% of houses are larger. Note that EPC data is not available for all properties in Thames Ditton.

21 PORTSMOUTH AVENUE: Plot and Title Map

21 PORTSMOUTH AVENUE sits on a plot of roughly 0.211 of an acre, or 854m². The below map shows the location of 21 PORTSMOUTH 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 21 PORTSMOUTH 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 21 PORTSMOUTH AVENUE?

21 PORTSMOUTH AVENUE is located in THAMES DITTON, in the KT7 postcode district. The below map shows the position of No. 21 on PORTSMOUTH AVENUE.