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.
581 HOWLANDS is a very small extended semi-detached house of 71m², built sometime between 1950 and 1966, which could now be worth an estimated £452,666. It was last sold for £395,000 in November 2016, which was around 11% below the average November 2016 semi-detached price in the Welwyn Hatfield local authority area. The most recent EPC inspection was June 2015, where the current energy rating was D, and the potential energy rating was B.
Land registry data shows three sales for 581 HOWLANDS since 1st January 1995. The below table shows the price paid for the three sales, along with the average semi-detached price in the Welwyn Hatfield local authority area for the corresponding sale date. All of the three 581 HOWLANDS 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 |
|---|---|---|---|
2016 17 NOV | £395,000 | £443,157 | 11% below HPI |
2016 24 JUN | £290,000 | £436,363 | 34% below HPI |
2002 8 FEB | £136,000 | £175,410 | 22% below HPI |
The below graph shows the average semi-detached house price in the Welwyn Hatfield local authority area over time, sourced from the HPI. The three 581 HOWLANDS sales between February 2002 and November 2016 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 June 2016 sale was for 34% below the HPI. So the extrapolation line tracks at 34% below the HPI over time, until the November 2016 sale, where it rises to 11% below the HPI. The line then continues to track at 11% below the HPI.

581 HOWLANDS might now be worth an estimated £452,666.
This is based on house price inflation of 14.6%, between November 2016 and July 2025, for semi-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 14.6% inflationary increase is applied to the most recent sale price for 581 HOWLANDS of £395,000 on 17th November 2016. For the value to have increased from £395,000 to £452,666 over the nine years and four months to July 2025, the following assumptions must hold true:
581 HOWLANDS is 71m², which includes one extension, according to the EPC inspection conducted in June 2015. This puts it in the smallest 10% of semi-detached houses houses in Welwyn Garden City, based on EPC data. The below chart shows the distribution of semi-detached houses houses by size in Welwyn Garden City, and where 581 HOWLANDS lies on this distribution: 3% of semi-detached houses houses are smaller than 581 HOWLANDS, and 97% of houses are larger. Note that EPC data is not available for all properties in Welwyn Garden City.

581 HOWLANDS sits on a plot of roughly 0.064 of an acre, or 260m². The below map shows the location of 581 HOWLANDS, 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 581 HOWLANDS). 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.

581 HOWLANDS is located in WELWYN GARDEN CITY, in the AL7 postcode district. The below map shows the position of No. 581 on HOWLANDS.

Most recent sales first: