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
9 ROYSE GROVE is a very large extended detached house of 240m², built sometime between 1976 and 1982, which could now be worth an estimated £1,117,921. It was last sold for £627,000 in March 2013, which was around 41% above the average March 2013 detached price in the North Hertfordshire local authority area. The most recent EPC inspection was April 2011, where the current energy rating was D, and the potential energy rating was C.
Land registry data shows two sales for 9 ROYSE GROVE since 1st January 1995. The below table shows the price paid for the two sales, along with the average detached price in the North Hertfordshire local authority area for the corresponding sale date. Both of the two 9 ROYSE GROVE 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 |
---|---|---|---|
2013 15 MAR | £627,000 | £444,267 | ![]() 41% above HPI |
1998 4 SEP | £270,000 | £178,590 | ![]() 51% above HPI |
The below graph shows the average detached house price in the North Hertfordshire local authority area over time, sourced from the HPI. The two 9 ROYSE GROVE sales from September 1998 and March 2013 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 1998 sale was for 51% above the HPI. So the extrapolation line tracks at 51% above the HPI over time, until the March 2013 sale, where it falls to 41% above the HPI. The line then continues to track at 41% above the HPI.
9 ROYSE GROVE might now be worth an estimated £1,117,921.
This is based on house price inflation of 78.3%, between March 2013 and December 2024, for detached houses, in the North Hertfordshire local authority area, as calculated by the Office for National Statistics and published in their UK House Price Index (HPI).
The 78.3% inflationary increase is applied to the most recent sale price for 9 ROYSE GROVE of £627,000 on 15th March 2013. For the value to have increased from £627,000 to £1,117,921 over the ten years and three months to December 2024, the following assumptions must hold true:
9 ROYSE GROVE is 240m², which includes three extensions, according to the EPC inspection conducted in April 2011. This puts it in the largest 10% of detached houses houses in Royston, based on EPC data. The below chart shows the distribution of detached houses houses by size in Royston, and where 9 ROYSE GROVE lies on this distribution: 97% of detached houses houses are smaller than 9 ROYSE GROVE, and 3% of houses are larger. Note that EPC data is not available for all properties in Royston.
9 ROYSE GROVE sits on a plot of roughly 0.217 of an acre, or 878m². The below map shows the location of 9 ROYSE GROVE, 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 9 ROYSE GROVE). 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.
9 ROYSE GROVE is located in ROYSTON, in the SG8 postcode district. The below map shows the position of No. 9 on ROYSE GROVE.
Most recent sales first: