21, KNOWLE ROAD, TWICKENHAM, TW2 6QH - £815,000

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 KNOWLE ROAD is a very small extended detached house of 82m², built sometime before 1900, which could now be worth an estimated £807,429. It was last sold for £815,000 in August 2024, which was around 53% below the average August 2024 detached price in the Richmond upon Thames local authority area. The most recent EPC inspection was March 2024, where the current energy rating was E, and the potential energy rating was B.

21 KNOWLE ROAD Sold Prices

Land registry data shows three sales for 21 KNOWLE ROAD since 1^st January 1995. The below table shows the price paid for the three sales, along with the average detached price in the Richmond upon Thames local authority area for the corresponding sale date. All of the three 21 KNOWLE ROAD 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
2024 28 AUG	£815,000	£1,731,940	53% below HPI
2012 30 JUL	£500,000	£1,040,710	52% below HPI
2001 26 JAN	£245,000	£538,334	54% below HPI

21 KNOWLE ROAD 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 three 21 KNOWLE ROAD sales between January 2001 and August 2024 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 2012 sale was for 52% below the HPI. So the extrapolation line tracks at 52% below the HPI over time, until the August 2024 sale, where it falls to 53% below the HPI. The line then continues to track at 53% below the HPI.

What might 21 KNOWLE ROAD be worth now?

21 KNOWLE ROAD might now be worth an estimated £807,429.

This is based on house price deflation of 0.9%, between August 2024 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 0.9% deflationary decrease is applied to the most recent sale price for 21 KNOWLE ROAD of £815,000 on 28th August 2024. For the value to have decreased from £815,000 to £807,429 over the one year and six months to February 2025, the following assumptions must hold true:

• The value of 21 KNOWLE ROAD has moved in line with the HPI for detached houses in the Richmond upon Thames local authority area.
• The August 2024 sale price of £815,000 represented a fair market value for the property.
• The size, condition, and specification of 21 KNOWLE ROAD has not materially changed since August 2024.

How Large is 21 KNOWLE ROAD?

21 KNOWLE ROAD is 82m², which includes one extension, according to the EPC inspection conducted in March 2024. This puts it in the smallest 20% of detached houses houses in Twickenham, based on EPC data. The below chart shows the distribution of detached houses houses by size in Twickenham, and where 21 KNOWLE ROAD lies on this distribution: 13% of detached houses houses are smaller than 21 KNOWLE ROAD, and 86% of houses are larger. Note that EPC data is not available for all properties in Twickenham.

21 KNOWLE ROAD: Plot and Title Map

21 KNOWLE ROAD sits on a plot of roughly 0.031 of an acre, or 125m². The below map shows the location of 21 KNOWLE ROAD, 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 KNOWLE ROAD). 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 KNOWLE ROAD?

21 KNOWLE ROAD is located in TWICKENHAM, in the TW2 postcode district. The below map shows the position of No. 21 on KNOWLE ROAD.