1, TREETOPS, WELWYN, AL6 0HU - £730,000

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

1 TREETOPS is a small detached house of 139m², built sometime between 1983 and 1990. It was last sold for £730,000 in May 2022, which was around 25% below the average May 2022 detached price in the Welwyn Hatfield local authority area. The most recent EPC inspection was September 2021, where the current energy rating was D, and the potential energy rating was B.

1 TREETOPS Sold Prices

Land registry data shows three sales for 1 TREETOPS 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. All of the three 1 TREETOPS 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 27 MAY	£730,000	£974,230	25% below HPI
2004 22 OCT	£382,000	£461,720	17% below HPI
1996 3 MAY	£162,000	£169,944	5% below HPI

1 TREETOPS 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 1 TREETOPS sales between May 1996 and May 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 October 2004 sale was for 17% below the HPI. So the extrapolation line tracks at 17% below the HPI over time, until the May 2022 sale, where it falls to 25% below the HPI. The line then continues to track at 25% below the HPI.

What might 1 TREETOPS be worth now?

1 TREETOPS might now be worth an estimated £677,625.

This is based on house price deflation of 7.2%, between May 2022 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 7.2% deflationary decrease is applied to the most recent sale price for 1 TREETOPS of £730,000 on 27th May 2022. For the value to have decreased from £730,000 to £677,625 over the one year and five months to December 2024, the following assumptions must hold true:

• The value of 1 TREETOPS has moved in line with the HPI for detached houses in the Welwyn Hatfield local authority area.
• The May 2022 sale price of £730,000 represented a fair market value for the property.
• The size, condition, and specification of 1 TREETOPS has not materially changed since May 2022.

How Large is 1 TREETOPS?

1 TREETOPS is 139m² according to the EPC inspection conducted in September 2021. This puts it in the smallest 40% of detached houses houses in Oaklands, based on EPC data. The below chart shows the distribution of detached houses houses by size in Oaklands, and where 1 TREETOPS lies on this distribution: 32% of detached houses houses are smaller than 1 TREETOPS, and 67% of houses are larger. Note that EPC data is not available for all properties in Oaklands.

1 TREETOPS: Plot and Title Map

1 TREETOPS sits on a plot of roughly 0.216 of an acre, or 874m². The below map shows the location of 1 TREETOPS, 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 1 TREETOPS). 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 1 TREETOPS?

1 TREETOPS is located in WELWYN, in the AL6 postcode district. The below map shows the position of No. 1 on TREETOPS.