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.
20 WALLIS CLOSE is a very large extended semi-detached house of 135m², built sometime between 1967 and 1975, which could now be worth an estimated £576,108. It was last sold for £326,995 in August 2007, which was around 40% above the average August 2007 semi-detached price in the Dartford local authority area. The most recent EPC inspection was April 2025, where the current energy rating was C, and the potential energy rating was C.
Land registry data shows one sale for 20 WALLIS CLOSE since 1st January 1995. The below table shows the price paid for the one sale, along with the average semi-detached price in the Dartford local authority area for the corresponding sale date. The average price is sourced from the Office for National Statistics' House Price Index (HPI).
| Date | Price | HPI Price | Variation from HPI |
|---|---|---|---|
2007 10 AUG | £326,995 | £234,298 | 40% above HPI |
20 WALLIS CLOSE might now be worth an estimated £576,108.
This is based on house price inflation of 76.2%, between August 2007 and May 2026, for semi-detached houses, in the Dartford local authority area, as calculated by the Office for National Statistics and published in their UK House Price Index (HPI).
The 76.2% inflationary increase is applied to the most recent sale price for 20 WALLIS CLOSE of £326,995 on 10th August 2007. For the value to have increased from £326,995 to £576,108 over the nineteen years and three months to May 2026, the following assumptions must hold true:
20 WALLIS CLOSE is 135m², which includes three extensions, according to the EPC inspection conducted in April 2025. This puts it in the largest 10% of semi-detached houses in Dartford, based on EPC data. The below chart shows the distribution of semi-detached houses by size in Dartford, and where 20 WALLIS CLOSE lies on this distribution: 93% of semi-detached houses are smaller than 20 WALLIS CLOSE, and 7% of semi-detached houses are larger. Note that EPC data is not available for all properties in Dartford.

20 WALLIS CLOSE sits on a plot of roughly 0.091 of an acre, or 369m².
20 WALLIS CLOSE is located in DARTFORD, in the DA2 postcode district.
Most recent sales first: