309, KNIGHTSFIELD, WELWYN GARDEN CITY, AL8 7NJ - £560,000

The information on this page is based on a number of underlying datasets, most of which are updated monthly. We maintain an update schedule which explains which version of each dataset we are currently relying on.

309 KNIGHTSFIELD is a very large extended detached house of 175m², built sometime between 1930 and 1949, which could now be worth an estimated £930,472. It was last sold for £560,000 in October 2012, which was around 1% below the average October 2012 detached price in the Welwyn Hatfield local authority area. The most recent EPC inspection was June 2016, where the current energy rating was E, and the potential energy rating was B.

309 KNIGHTSFIELD Sold Prices

Land registry data shows two sales for 309 KNIGHTSFIELD 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 309 KNIGHTSFIELD sales were 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
2012 19 OCT	£560,000	£564,507	1% below HPI
2002 8 NOV	£390,000	£435,794	11% below HPI

309 KNIGHTSFIELD 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 309 KNIGHTSFIELD sales from November 2002 and October 2012 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 2002 sale was for 11% below the HPI. So the extrapolation line tracks at 11% below the HPI over time, until the October 2012 sale, where it rises to 1% below the HPI. The line then continues to track at 1% below the HPI.

What might 309 KNIGHTSFIELD be worth now?

309 KNIGHTSFIELD might now be worth an estimated £930,472.

This is based on house price inflation of 66.2%, between October 2012 and February 2025, 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 66.2% inflationary increase is applied to the most recent sale price for 309 KNIGHTSFIELD of £560,000 on 19th October 2012. For the value to have increased from £560,000 to £930,472 over the thirteen years and eight months to February 2025, the following assumptions must hold true:

• The value of 309 KNIGHTSFIELD has moved in line with the HPI for detached houses in the Welwyn Hatfield local authority area.
• The October 2012 sale price of £560,000 represented a fair market value for the property.
• The size, condition, and specification of 309 KNIGHTSFIELD has not materially changed since October 2012.

How Large is 309 KNIGHTSFIELD?

309 KNIGHTSFIELD is 175m², which includes one extension, according to the EPC inspection conducted in June 2016. This puts it in the largest 20% 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 309 KNIGHTSFIELD lies on this distribution: 83% of detached houses houses are smaller than 309 KNIGHTSFIELD, and 17% of houses are larger. Note that EPC data is not available for all properties in Welwyn Garden City.

309 KNIGHTSFIELD: Plot and Title Map

309 KNIGHTSFIELD sits on a plot of roughly 2.7 acres, or 10,976m². The below map shows the location of 309 KNIGHTSFIELD, 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 309 KNIGHTSFIELD). 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 309 KNIGHTSFIELD?

309 KNIGHTSFIELD is located in WELWYN GARDEN CITY, in the AL8 postcode district. The below map shows the position of No. 309 on KNIGHTSFIELD.