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.
29 GREAT LEY is a midsized semi-detached house of 131m², built sometime between 1930 and 1949, which could now be worth an estimated £554,316. It was last sold for £335,000 in November 2013, which was around 9% above the average November 2013 semi-detached price in the Welwyn Hatfield local authority area. The most recent EPC inspection was September 2013, where the current energy rating was D, and the potential energy rating was C.
Land registry data shows two sales for 29 GREAT LEY since 1st January 1995. The below table shows the price paid for the two sales, along with the average semi-detached price in the Welwyn Hatfield local authority area for the corresponding sale date. One of the two 29 GREAT LEY sales was for above the average price, whilst the other was 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 |
|---|---|---|---|
2013 8 NOV | £335,000 | £306,920 | 9% above HPI |
2004 19 APR | £236,000 | £242,235 | 3% 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 two 29 GREAT LEY sales from April 2004 and November 2013 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 April 2004 sale was for 3% below the HPI. So the extrapolation line tracks at 3% below the HPI over time, until the November 2013 sale, where it rises to 9% above the HPI. The line then continues to track at 9% above the HPI.

29 GREAT LEY might now be worth an estimated £554,316.
This is based on house price inflation of 65.5%, between November 2013 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 65.5% inflationary increase is applied to the most recent sale price for 29 GREAT LEY of £335,000 on 8th November 2013. For the value to have increased from £335,000 to £554,316 over the twelve years and four months to July 2025, the following assumptions must hold true:
29 GREAT LEY is 131m² according to the EPC inspection conducted in September 2013. This puts it in the largest 50% 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 29 GREAT LEY lies on this distribution: 54% of semi-detached houses houses are smaller than 29 GREAT LEY, and 45% of houses are larger. Note that EPC data is not available for all properties in Welwyn Garden City.

29 GREAT LEY sits on a plot of roughly 0.086 of an acre, or 350m². The below map shows the location of 29 GREAT LEY, 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 29 GREAT LEY). 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.

29 GREAT LEY is located in WELWYN GARDEN CITY, in the AL7 postcode district. The below map shows the position of No. 29 on GREAT LEY.

Most recent sales first: