18, RAFFIN CLOSE, DATCHWORTH, KNEBWORTH, SG3 6RP - £827,500

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.

18 RAFFIN CLOSE is a small extended detached house of 124m², built sometime between 1950 and 1966, which could now be worth an estimated £823,869. It was last sold for £827,500 in October 2024, which was around 4% below the average October 2024 detached price in the East Hertfordshire local authority area. The most recent EPC inspection was March 2023, where the current energy rating was D, and the potential energy rating was C.

18 RAFFIN CLOSE Sold Prices

Land registry data shows two sales for 18 RAFFIN CLOSE since 1^st January 1995. The below table shows the price paid for the two sales, along with the average detached price in the East Hertfordshire local authority area for the corresponding sale date. Both of the two 18 RAFFIN CLOSE 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
2024 24 OCT	£827,500	£866,252	4% below HPI
1996 18 OCT	£142,000	£159,732	11% below HPI

18 RAFFIN CLOSE Price Paid vs. HPI Average

The below graph shows the average detached house price in the East Hertfordshire local authority area over time, sourced from the HPI. The two 18 RAFFIN CLOSE sales from October 1996 and October 2024 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 October 1996 sale was for 11% below the HPI. So the extrapolation line tracks at 11% below the HPI over time, until the October 2024 sale, where it rises to 4% below the HPI. The line then continues to track at 4% below the HPI.

What might 18 RAFFIN CLOSE be worth now?

18 RAFFIN CLOSE might now be worth an estimated £823,869.

This is based on house price deflation of 0.4%, between October 2024 and June 2025, for detached houses, in the East Hertfordshire local authority area, as calculated by the Office for National Statistics and published in their UK House Price Index (HPI).

The 0.4% deflationary decrease is applied to the most recent sale price for 18 RAFFIN CLOSE of £827,500 on 24th October 2024. For the value to have decreased from £827,500 to £823,869 over the one year and four months to June 2025, the following assumptions must hold true:

• The value of 18 RAFFIN CLOSE has moved in line with the HPI for detached houses in the East Hertfordshire local authority area.
• The October 2024 sale price of £827,500 represented a fair market value for the property.
• The size, condition, and specification of 18 RAFFIN CLOSE has not materially changed since October 2024.

How Large is 18 RAFFIN CLOSE?

18 RAFFIN CLOSE is 124m², which includes two extensions, according to the EPC inspection conducted in March 2023. This puts it in the smallest 40% of detached houses houses in Datchworth, based on EPC data. The below chart shows the distribution of detached houses houses by size in Datchworth, and where 18 RAFFIN CLOSE lies on this distribution: 33% of detached houses houses are smaller than 18 RAFFIN CLOSE, and 65% of houses are larger. Note that EPC data is not available for all properties in Datchworth.

18 RAFFIN CLOSE: Plot and Title Map

18 RAFFIN CLOSE sits on a plot of roughly 0.227 of an acre, or 919m². The below map shows the location of 18 RAFFIN 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 18 RAFFIN 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 18 RAFFIN CLOSE?

18 RAFFIN CLOSE is located in DATCHWORTH, in the SG3 postcode district. The below map shows the position of No. 18 on RAFFIN CLOSE.