11, THE GREEN, WELWYN, AL6 9EA - £905,000

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

11 THE GREEN is a midsized detached house of 157m², built sometime between 1967 and 1975, which could now be worth an estimated £974,039. It was last sold for £905,000 in April 2019, which was around 8% above the average April 2019 detached price in the Welwyn Hatfield local authority area. The most recent EPC inspection was June 2013, where the current energy rating was D, and the potential energy rating was C.

11 THE GREEN Sold Prices

Land registry data shows two sales for 11 THE GREEN 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 11 THE GREEN 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
2019 15 APR	£905,000	£840,234	8% above HPI
1998 24 JUL	£312,000	£233,547	34% above HPI

11 THE GREEN 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 11 THE GREEN sales from July 1998 and April 2019 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 July 1998 sale was for 34% above the HPI. So the extrapolation line tracks at 34% above the HPI over time, until the April 2019 sale, where it falls to 8% above the HPI. The line then continues to track at 8% above the HPI.

What might 11 THE GREEN be worth now?

11 THE GREEN might now be worth an estimated £974,039.

This is based on house price inflation of 7.6%, between April 2019 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 7.6% inflationary increase is applied to the most recent sale price for 11 THE GREEN of £905,000 on 15th April 2019. For the value to have increased from £905,000 to £974,039 over the four years and four months to December 2024, the following assumptions must hold true:

• The value of 11 THE GREEN has moved in line with the HPI for detached houses in the Welwyn Hatfield local authority area.
• The April 2019 sale price of £905,000 represented a fair market value for the property.
• The size, condition, and specification of 11 THE GREEN has not materially changed since April 2019.

How Large is 11 THE GREEN?

11 THE GREEN is 157m² according to the EPC inspection conducted in June 2013. This puts it in the largest 50% of detached houses houses in Welwyn, based on EPC data. The below chart shows the distribution of detached houses houses by size in Welwyn, and where 11 THE GREEN lies on this distribution: 53% of detached houses houses are smaller than 11 THE GREEN, and 46% of houses are larger. Note that EPC data is not available for all properties in Welwyn.

11 THE GREEN: Plot and Title Map

11 THE GREEN sits on a plot of roughly 0.261 of an acre, or 1,058m². The below map shows the location of 11 THE GREEN, 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 11 THE GREEN). 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 11 THE GREEN?

11 THE GREEN is located in WELWYN, in the AL6 postcode district. The below map shows the position of No. 11 on THE GREEN.