10, HARMER GREEN LANE, WELWYN, AL6 0AX - £800,000

Based on the September 2024 Price Paid Data (released on 28th October 2024), the August 2024 House Price Index (released on 16th October 2024), and the September 2024 Energy Performance of Buildings Data (released on 31st October 2024). Sources

10 HARMER GREEN LANE is a small extended detached house of 106m², built sometime between 1950 and 1966. It was last sold for £800,000 in October 2022, which was around 15% below the average October 2022 detached price in the Welwyn Hatfield local authority area. The most recent EPC inspection was July 2021, where the current energy rating was D, and the potential energy rating was C.

10 HARMER GREEN LANE Sold Prices

Land registry data shows two sales for 10 HARMER GREEN LANE 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 10 HARMER GREEN LANE 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
2022 17 OCT	£800,000	£939,799	15% below HPI
2009 17 JUL	£350,000	£448,218	22% below HPI

10 HARMER GREEN LANE 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 10 HARMER GREEN LANE sales from July 2009 and October 2022 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 2009 sale was for 22% below the HPI. So the extrapolation line tracks at 22% below the HPI over time, until the October 2022 sale, where it rises to 15% below the HPI. The line then continues to track at 15% below the HPI.

How Large is 10 HARMER GREEN LANE?

10 HARMER GREEN LANE is 106m², which includes one extension, according to the EPC inspection conducted in July 2021. This puts it in the smallest 40% of detached houses in Welwyn Garden City, based on EPC data. The below chart shows the distribution of detached houses by size in Welwyn Garden City, and where 10 HARMER GREEN LANE lies on this distribution: 30% of detached houses are smaller than 10 HARMER GREEN LANE, and 69% of houses are larger. Note that EPC data is not available for all properties in Welwyn Garden City.

10 HARMER GREEN LANE: Plot and Title Map

10 HARMER GREEN LANE sits on a plot of roughly 0.188 of an acre, or 759m². The below map shows the location of 10 HARMER GREEN LANE, 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 10 HARMER GREEN LANE). 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 10 HARMER GREEN LANE?

10 HARMER GREEN LANE is located in WELWYN, in the AL6 postcode district. The below map shows the position of No. 10 on HARMER GREEN LANE.