8, MANDEVILLE RISE, WELWYN GARDEN CITY, AL8 7JU - £670,000

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

8 MANDEVILLE RISE is a large extended detached house of 162m², built sometime between 1930 and 1949, which could now be worth an estimated £1,253,411. It was last sold for £670,000 in September 2009, which was around 39% above the average September 2009 detached price in the Welwyn Hatfield local authority area. The most recent EPC inspection was May 2009, where the current energy rating was D, and the potential energy rating was D.

8 MANDEVILLE RISE Sold Prices

Land registry data shows two sales for 8 MANDEVILLE RISE since 1^st January 1995. The below table shows the price paid for the two sales, along with the average detached price in the Welwyn Hatfield local authority area for the corresponding sale date. Both of the two 8 MANDEVILLE RISE 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
2009 10 SEP	£670,000	£483,403	39% above HPI
2003 24 SEP	£500,000	£436,395	15% above HPI

8 MANDEVILLE RISE Price Paid vs. HPI Average

The below graph shows the average detached house price in the Welwyn Hatfield local authority area over time, sourced from the HPI. The two 8 MANDEVILLE RISE sales from September 2003 and September 2009 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 2003 sale was for 15% above the HPI. So the extrapolation line tracks at 15% above the HPI over time, until the September 2009 sale, where it rises to 39% above the HPI. The line then continues to track at 39% above the HPI.

What might 8 MANDEVILLE RISE be worth now?

8 MANDEVILLE RISE might now be worth an estimated £1,253,411.

This is based on house price inflation of 87.1%, between September 2009 and December 2024, for 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 87.1% inflationary increase is applied to the most recent sale price for 8 MANDEVILLE RISE of £670,000 on 10th September 2009. For the value to have increased from £670,000 to £1,253,411 over the fourteen years and nine months to December 2024, the following assumptions must hold true:

• The value of 8 MANDEVILLE RISE has moved in line with the HPI for detached houses in the Welwyn Hatfield local authority area.
• The September 2009 sale price of £670,000 represented a fair market value for the property.
• The size, condition, and specification of 8 MANDEVILLE RISE has not materially changed since September 2009.

How Large is 8 MANDEVILLE RISE?

8 MANDEVILLE RISE is 162m², which includes one extension, according to the EPC inspection conducted in May 2009. This puts it in the largest 30% of detached houses houses in Welwyn Garden City, based on EPC data. The below chart shows the distribution of detached houses houses by size in Welwyn Garden City, and where 8 MANDEVILLE RISE lies on this distribution: 78% of detached houses houses are smaller than 8 MANDEVILLE RISE, and 22% of houses are larger. Note that EPC data is not available for all properties in Welwyn Garden City.

8 MANDEVILLE RISE: Plot and Title Map

8 MANDEVILLE RISE sits on a plot of roughly 1.2 acres, or 4,975m². The below map shows the location of 8 MANDEVILLE RISE, 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 8 MANDEVILLE RISE). 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 8 MANDEVILLE RISE?

8 MANDEVILLE RISE is located in WELWYN GARDEN CITY, in the AL8 postcode district. The below map shows the position of No. 8 on MANDEVILLE RISE.