11, TROWLOCK AVENUE, TEDDINGTON, TW11 9QT - £1,995,000

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

11 TROWLOCK AVENUE is a very large extended detached house of 317m², built sometime between 1900 and 1929, which could now be worth an estimated £2,248,724. It was last sold for £1,995,000 in September 2018, which was around 31% above the average September 2018 detached price in the Richmond upon Thames local authority area. The most recent EPC inspection was January 2018, where the current energy rating was C, and the potential energy rating was B.

11 TROWLOCK AVENUE Sold Prices

Land registry data shows two sales for 11 TROWLOCK 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 Richmond upon Thames local authority area for the corresponding sale date. One of the two 11 TROWLOCK 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
2018 20 SEP	£1,995,000	£1,522,250	31% above HPI
2009 17 APR	£715,000	£757,419	6% below HPI

11 TROWLOCK AVENUE Price Paid vs. HPI Average

The below graph shows the average detached house price in the Richmond upon Thames local authority area over time, sourced from the HPI. The two 11 TROWLOCK AVENUE sales from April 2009 and September 2018 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 April 2009 sale was for 6% below the HPI. So the extrapolation line tracks at 6% below the HPI over time, until the September 2018 sale, where it rises to 31% above the HPI. The line then continues to track at 31% above the HPI.

What might 11 TROWLOCK AVENUE be worth now?

11 TROWLOCK AVENUE might now be worth an estimated £2,248,724.

This is based on house price inflation of 12.7%, between September 2018 and February 2025, for detached houses, in the Richmond upon Thames local authority area, as calculated by the Office for National Statistics and published in their UK House Price Index (HPI).

The 12.7% inflationary increase is applied to the most recent sale price for 11 TROWLOCK AVENUE of £1,995,000 on 20th September 2018. For the value to have increased from £1,995,000 to £2,248,724 over the seven years and seven months to February 2025, the following assumptions must hold true:

• The value of 11 TROWLOCK AVENUE has moved in line with the HPI for detached houses in the Richmond upon Thames local authority area.
• The September 2018 sale price of £1,995,000 represented a fair market value for the property.
• The size, condition, and specification of 11 TROWLOCK AVENUE has not materially changed since September 2018.

How Large is 11 TROWLOCK AVENUE?

11 TROWLOCK AVENUE is 317m², which includes three extensions, according to the EPC inspection conducted in January 2018. This puts it in the largest 10% of detached houses houses in Teddington, based on EPC data. The below chart shows the distribution of detached houses houses by size in Teddington, and where 11 TROWLOCK AVENUE lies on this distribution: 94% of detached houses houses are smaller than 11 TROWLOCK AVENUE, and 6% of houses are larger. Note that EPC data is not available for all properties in Teddington.

11 TROWLOCK AVENUE: Plot and Title Map

11 TROWLOCK AVENUE sits on a plot of roughly 0.118 of an acre, or 477m². The below map shows the location of 11 TROWLOCK 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 11 TROWLOCK 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 11 TROWLOCK AVENUE?

11 TROWLOCK AVENUE is located in TEDDINGTON, in the TW11 postcode district. The below map shows the position of No. 11 on TROWLOCK AVENUE.