15, BARN CLOSE, WELWYN GARDEN CITY, AL8 6ST - £950,000

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

15 BARN CLOSE is a very large extended detached house of 211m², built sometime between 1967 and 1975, which could now be worth an estimated £1,021,340. It was last sold for £950,000 in January 2018, which was around 13% above the average January 2018 detached price in the Welwyn Hatfield local authority area. The most recent EPC inspection was July 2017, where the current energy rating was D, and the potential energy rating was B.

15 BARN CLOSE Sold Prices

Land registry data shows three sales for 15 BARN CLOSE since 1^st January 1995. The below table shows the price paid for the three sales, along with the average detached price in the Welwyn Hatfield local authority area for the corresponding sale date. Two of the three 15 BARN CLOSE sales were for above the average price, whilst one was 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
2018 23 JAN	£950,000	£841,165	13% above HPI
2006 15 SEP	£730,000	£484,725	51% above HPI
2000 26 MAY	£291,000	£294,911	1% below HPI

15 BARN CLOSE 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 three 15 BARN CLOSE sales between May 2000 and January 2018 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 2006 sale was for 51% above the HPI. So the extrapolation line tracks at 51% above the HPI over time, until the January 2018 sale, where it falls to 13% above the HPI. The line then continues to track at 13% above the HPI.

What might 15 BARN CLOSE be worth now?

15 BARN CLOSE might now be worth an estimated £1,021,340.

This is based on house price inflation of 7.5%, between January 2018 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 7.5% inflationary increase is applied to the most recent sale price for 15 BARN CLOSE of £950,000 on 23rd January 2018. For the value to have increased from £950,000 to £1,021,340 over the five years and one month to December 2024, the following assumptions must hold true:

• The value of 15 BARN CLOSE has moved in line with the HPI for detached houses in the Welwyn Hatfield local authority area.
• The January 2018 sale price of £950,000 represented a fair market value for the property.
• The size, condition, and specification of 15 BARN CLOSE has not materially changed since January 2018.

How Large is 15 BARN CLOSE?

15 BARN CLOSE is 211m², which includes two extensions, according to the EPC inspection conducted in July 2017. This puts it in the largest 10% 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 15 BARN CLOSE lies on this distribution: 91% of detached houses houses are smaller than 15 BARN CLOSE, and 9% of houses are larger. Note that EPC data is not available for all properties in Welwyn Garden City.

15 BARN CLOSE: Plot and Title Map

15 BARN CLOSE sits on a plot of roughly 0.256 of an acre, or 1,037m². The below map shows the location of 15 BARN CLOSE, 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 15 BARN CLOSE). 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 15 BARN CLOSE?

15 BARN CLOSE is located in WELWYN GARDEN CITY, in the AL8 postcode district. The below map shows the position of No. 15 on BARN CLOSE.