20, WILLIAN WAY, LETCHWORTH GARDEN CITY, SG6 2HG - £805,000

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

20 WILLIAN WAY is a very large extended detached house of 200m², built sometime between 1900 and 1929, which could now be worth an estimated £1,143,398. It was last sold for £805,000 in June 2015, which was around 47% above the average June 2015 detached price in the North Hertfordshire local authority area. The most recent EPC inspection was April 2012, where the current energy rating was D, and the potential energy rating was C.

20 WILLIAN WAY Sold Prices

Land registry data shows three sales for 20 WILLIAN WAY since 1^st January 1995. The below table shows the price paid for the three sales, along with the average detached price in the North Hertfordshire local authority area for the corresponding sale date. All of the three 20 WILLIAN WAY 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
2015 15 JUN	£805,000	£546,451	47% above HPI
2008 18 JAN	£770,000	£434,647	77% above HPI
2002 2 MAY	£450,000	£270,704	66% above HPI

20 WILLIAN WAY Price Paid vs. HPI Average

The below graph shows the average detached house price in the North Hertfordshire local authority area over time, sourced from the HPI. The three 20 WILLIAN WAY sales between May 2002 and June 2015 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 January 2008 sale was for 77% above the HPI. So the extrapolation line tracks at 77% above the HPI over time, until the June 2015 sale, where it falls to 47% above the HPI. The line then continues to track at 47% above the HPI.

What might 20 WILLIAN WAY be worth now?

20 WILLIAN WAY might now be worth an estimated £1,143,398.

This is based on house price inflation of 42%, between June 2015 and February 2025, for detached houses, in the North Hertfordshire local authority area, as calculated by the Office for National Statistics and published in their UK House Price Index (HPI).

The 42% inflationary increase is applied to the most recent sale price for 20 WILLIAN WAY of £805,000 on 15th June 2015. For the value to have increased from £805,000 to £1,143,398 over the ten years and four months to February 2025, the following assumptions must hold true:

• The value of 20 WILLIAN WAY has moved in line with the HPI for detached houses in the North Hertfordshire local authority area.
• The June 2015 sale price of £805,000 represented a fair market value for the property.
• The size, condition, and specification of 20 WILLIAN WAY has not materially changed since June 2015.

How Large is 20 WILLIAN WAY?

20 WILLIAN WAY is 200m², which includes three extensions, according to the EPC inspection conducted in April 2012. This puts it in the largest 10% of detached houses houses in Letchworth, based on EPC data. The below chart shows the distribution of detached houses houses by size in Letchworth, and where 20 WILLIAN WAY lies on this distribution: 90% of detached houses houses are smaller than 20 WILLIAN WAY, and 10% of houses are larger. Note that EPC data is not available for all properties in Letchworth.

20 WILLIAN WAY: Plot and Title Map

20 WILLIAN WAY sits on a plot of roughly 0.318 of an acre, or 1,286m². The below map shows the location of 20 WILLIAN WAY, 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 20 WILLIAN WAY). 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 20 WILLIAN WAY?

20 WILLIAN WAY is located in LETCHWORTH GARDEN CITY, in the SG6 postcode district. The below map shows the position of No. 20 on WILLIAN WAY.