9, THORNTON ROAD, POTTERS BAR, EN6 1JJ - £322,500

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 THORNTON ROAD is a small extended semi-detached house of 107m², built sometime before 1900, which could now be worth an estimated £569,906. It was last sold for £322,500 in September 2010, which was around 9% above the average September 2010 semi-detached price in the Welwyn Hatfield local authority area. The most recent EPC inspection was August 2024, where the current energy rating was D, and the potential energy rating was B.

9 THORNTON ROAD Sold Prices

Land registry data shows two sales for 9 THORNTON ROAD since 1^st January 1995. The below table shows the price paid for the two sales, along with the average semi-detached price in the Welwyn Hatfield local authority area for the corresponding sale date. Both of the two 9 THORNTON 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
2010 22 SEP	£322,500	£296,739	9% above HPI
1997 22 AUG	£140,000	£105,445	33% above HPI

9 THORNTON ROAD Price Paid vs. HPI Average

The below graph shows the average semi-detached house price in the Welwyn Hatfield local authority area over time, sourced from the HPI. The two 9 THORNTON ROAD sales from August 1997 and September 2010 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 1997 sale was for 33% above the HPI. So the extrapolation line tracks at 33% above the HPI over time, until the September 2010 sale, where it falls to 9% above the HPI. The line then continues to track at 9% above the HPI.

What might 9 THORNTON ROAD be worth now?

9 THORNTON ROAD might now be worth an estimated £569,906.

This is based on house price inflation of 76.7%, between September 2010 and February 2025, for semi-detached houses, in the Welwyn Hatfield local authority area, as calculated by the Office for National Statistics and published in their UK House Price Index (HPI).

The 76.7% inflationary increase is applied to the most recent sale price for 9 THORNTON ROAD of £322,500 on 22nd September 2010. For the value to have increased from £322,500 to £569,906 over the fifteen years and seven months to February 2025, the following assumptions must hold true:

• The value of 9 THORNTON ROAD has moved in line with the HPI for semi-detached houses in the Welwyn Hatfield local authority area.
• The September 2010 sale price of £322,500 represented a fair market value for the property.
• The size, condition, and specification of 9 THORNTON ROAD has not materially changed since September 2010.

How Large is 9 THORNTON ROAD?

9 THORNTON ROAD is 107m², which includes four extensions, according to the EPC inspection conducted in August 2024. This puts it in the smallest 40% of semi-detached houses houses in Potters Bar, based on EPC data. The below chart shows the distribution of semi-detached houses houses by size in Potters Bar, and where 9 THORNTON ROAD lies on this distribution: 34% of semi-detached houses houses are smaller than 9 THORNTON ROAD, and 66% of houses are larger. Note that EPC data is not available for all properties in Potters Bar.

9 THORNTON ROAD: Plot and Title Map

9 THORNTON ROAD sits on a plot of roughly 0.069 of an acre, or 281m². The below map shows the location of 9 THORNTON 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 9 THORNTON 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 9 THORNTON ROAD?

9 THORNTON ROAD is located in POTTERS BAR, in the EN6 postcode district. The below map shows the position of No. 9 on THORNTON ROAD.