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.
21 SYCAMORE AVENUE is a large extended detached house of 153m², built sometime between 1950 and 1966, which could now be worth an estimated £532,785. It was last sold for £350,000 in June 2014, which was around 43% below the average June 2014 detached price in the Welwyn Hatfield local authority area. The most recent EPC inspection was June 2010, where the current energy rating was D, and the potential energy rating was C.
Land registry data shows two sales for 21 SYCAMORE AVENUE since 1st 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 21 SYCAMORE AVENUE 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 |
---|---|---|---|
2014 30 JUN | £350,000 | £616,170 | ![]() 43% below HPI |
2005 14 DEC | £280,000 | £456,312 | ![]() 39% below HPI |
The below graph shows the average detached house price in the Welwyn Hatfield local authority area over time, sourced from the HPI. The two 21 SYCAMORE AVENUE sales from December 2005 and June 2014 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 December 2005 sale was for 39% below the HPI. So the extrapolation line tracks at 39% below the HPI over time, until the June 2014 sale, where it falls to 43% below the HPI. The line then continues to track at 43% below the HPI.
21 SYCAMORE AVENUE might now be worth an estimated £532,785.
This is based on house price inflation of 52.2%, between June 2014 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 52.2% inflationary increase is applied to the most recent sale price for 21 SYCAMORE AVENUE of £350,000 on 30th June 2014. For the value to have increased from £350,000 to £532,785 over the eleven years and four months to February 2025, the following assumptions must hold true:
21 SYCAMORE AVENUE is 153m², which includes one extension, according to the EPC inspection conducted in June 2010. This puts it in the largest 30% of detached houses houses in Hatfield, based on EPC data. The below chart shows the distribution of detached houses houses by size in Hatfield, and where 21 SYCAMORE AVENUE lies on this distribution: 70% of detached houses houses are smaller than 21 SYCAMORE AVENUE, and 30% of houses are larger. Note that EPC data is not available for all properties in Hatfield.
21 SYCAMORE AVENUE sits on a plot of roughly 0.258 of an acre, or 1,044m². The below map shows the location of 21 SYCAMORE AVENUE, 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 21 SYCAMORE AVENUE). 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.
21 SYCAMORE AVENUE is located in HATFIELD, in the AL10 postcode district. The below map shows the position of No. 21 on SYCAMORE AVENUE.
Most recent sales first: