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
66 HEATHFIELD is a very large extended detached house of 233m², built sometime between 1950 and 1966, which could now be worth an estimated £1,133,606. It was last sold for £850,000 in November 2015, which was around 46% above the average November 2015 detached price in the North Hertfordshire local authority area. The most recent EPC inspection was June 2014, where the current energy rating was C, and the potential energy rating was B.
Land registry data shows three sales for 66 HEATHFIELD since 1st January 1995. The below table shows the price paid for the three sales, along with the average detached price in the North Hertfordshire local authority area for the corresponding sale date. One of the three 66 HEATHFIELD sales was for above the average price, whilst two 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 |
---|---|---|---|
2015 5 NOV | £850,000 | £581,982 | ![]() 46% above HPI |
2002 5 AUG | £272,000 | £295,206 | ![]() 8% below HPI |
1998 24 MAR | £148,000 | £161,928 | ![]() 9% below HPI |
The below graph shows the average detached house price in the North Hertfordshire local authority area over time, sourced from the HPI. The three 66 HEATHFIELD sales between March 1998 and November 2015 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 August 2002 sale was for 8% below the HPI. So the extrapolation line tracks at 8% below the HPI over time, until the November 2015 sale, where it rises to 46% above the HPI. The line then continues to track at 46% above the HPI.
66 HEATHFIELD might now be worth an estimated £1,133,606.
This is based on house price inflation of 33.4%, between November 2015 and February 2025, 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 33.4% inflationary increase is applied to the most recent sale price for 66 HEATHFIELD of £850,000 on 5th November 2015. For the value to have increased from £850,000 to £1,133,606 over the ten years and nine months to February 2025, the following assumptions must hold true:
66 HEATHFIELD is 233m², which includes two extensions, according to the EPC inspection conducted in June 2014. 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 66 HEATHFIELD lies on this distribution: 96% of detached houses houses are smaller than 66 HEATHFIELD, and 4% of houses are larger. Note that EPC data is not available for all properties in Royston.
66 HEATHFIELD sits on a plot of roughly 0.168 of an acre, or 679m². The below map shows the location of 66 HEATHFIELD, 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 66 HEATHFIELD). 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.
66 HEATHFIELD is located in ROYSTON, in the SG8 postcode district. The below map shows the position of No. 66 on HEATHFIELD.
Most recent sales first: