The information on this page is based on a number of underlying datasets, most of which are updated monthly. We maintain an update schedule which explains which version of each dataset we are currently relying on.
21 SIDNEY ROAD is a large extended terraced house of 219m², built sometime between 1900 and 1929, which could now be worth an estimated £1,684,929. It was last sold for £1,375,000 in March 2018, which was around 88% above the average March 2018 terraced price in the Richmond upon Thames local authority area. The most recent EPC inspection was February 2017, where the current energy rating was D, and the potential energy rating was C.
Land registry data shows three sales for 21 SIDNEY ROAD since 1st January 1995. The below table shows the price paid for the three sales, along with the average terraced price in the Richmond upon Thames local authority area for the corresponding sale date. All of the three 21 SIDNEY ROAD 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 |
|---|---|---|---|
2018 26 MAR | £1,375,000 | £732,822 | 88% above HPI |
2006 22 SEP | £715,000 | £396,677 | 80% above HPI |
1996 26 JAN | £210,000 | £119,421 | 76% above HPI |
The below graph shows the average terraced house price in the Richmond upon Thames local authority area over time, sourced from the HPI. The three 21 SIDNEY ROAD sales between January 1996 and March 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 September 2006 sale was for 80% above the HPI. So the extrapolation line tracks at 80% above the HPI over time, until the March 2018 sale, where it rises to 88% above the HPI. The line then continues to track at 88% above the HPI.

21 SIDNEY ROAD might now be worth an estimated £1,684,929.
This is based on house price inflation of 22.5%, between March 2018 and May 2026, for terraced 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 22.5% inflationary increase is applied to the most recent sale price for 21 SIDNEY ROAD of £1,375,000 on 26th March 2018. For the value to have increased from £1,375,000 to £1,684,929 over the seven years and ten months to May 2026, the following assumptions must hold true:
21 SIDNEY ROAD is 219m², which includes two extensions, according to the EPC inspection conducted in February 2017. This puts it in the largest 30% of terraced houses houses in London, based on EPC data. The below chart shows the distribution of terraced houses houses by size in London, and where 21 SIDNEY ROAD lies on this distribution: 79% of terraced houses houses are smaller than 21 SIDNEY ROAD, and 21% of houses are larger. Note that EPC data is not available for all properties in London.

21 SIDNEY ROAD sits on a plot of roughly 0.040 of an acre, or 162m². The below map shows the location of 21 SIDNEY 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 SIDNEY 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.

21 SIDNEY ROAD is located in TWICKENHAM, in the TW1 postcode district. The below map shows the position of No. 21 on SIDNEY ROAD.

Most recent sales first: