1A, ADELE AVENUE, WELWYN, AL6 0AU - £667,500

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

1A ADELE AVENUE is a large extended detached house of 163m², built sometime between 1976 and 1982, which could now be worth an estimated £1,085,804. It was last sold for £667,500 in June 2011, which was around 20% above the average June 2011 detached price in the Welwyn Hatfield local authority area. The most recent EPC inspection was July 2009, where the current energy rating was F, and the potential energy rating was D.

1A ADELE AVENUE Sold Prices

Land registry data shows two sales for 1A ADELE AVENUE 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 1A ADELE AVENUE 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
2011 3 JUN	£667,500	£555,940	20% above HPI
1998 11 NOV	£350,000	£231,681	51% above HPI

1A ADELE AVENUE 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 1A ADELE AVENUE sales from November 1998 and June 2011 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 November 1998 sale was for 51% above the HPI. So the extrapolation line tracks at 51% above the HPI over time, until the June 2011 sale, where it falls to 20% above the HPI. The line then continues to track at 20% above the HPI.

What might 1A ADELE AVENUE be worth now?

1A ADELE AVENUE might now be worth an estimated £1,085,804.

This is based on house price inflation of 62.7%, between June 2011 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 62.7% inflationary increase is applied to the most recent sale price for 1A ADELE AVENUE of £667,500 on 3rd June 2011. For the value to have increased from £667,500 to £1,085,804 over the twelve years and six months to December 2024, the following assumptions must hold true:

• The value of 1A ADELE AVENUE has moved in line with the HPI for detached houses in the Welwyn Hatfield local authority area.
• The June 2011 sale price of £667,500 represented a fair market value for the property.
• The size, condition, and specification of 1A ADELE AVENUE has not materially changed since June 2011.

How Large is 1A ADELE AVENUE?

1A ADELE AVENUE is 163m², which includes one extension, according to the EPC inspection conducted in July 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 1A ADELE AVENUE lies on this distribution: 79% of detached houses houses are smaller than 1A ADELE AVENUE, and 21% of houses are larger. Note that EPC data is not available for all properties in Welwyn Garden City.

1A ADELE AVENUE: Plot and Title Map

1A ADELE AVENUE sits on a plot of roughly 0.277 of an acre, or 1,120m². The below map shows the location of 1A ADELE AVENUE, 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 1A ADELE AVENUE). 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 1A ADELE AVENUE?

1A ADELE AVENUE is located in WELWYN, in the AL6 postcode district. The below map shows the position of No. 1A on ADELE AVENUE.