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.
9 THE KNOWLE is a very large extended detached house of 245m², built sometime between 1950 and 1966, which could now be worth an estimated £802,882. It was last sold for £158,000 in March 1999, which was around 22% above the average March 1999 detached price in the Basildon local authority area. The most recent EPC inspection was April 2017, where the current energy rating was C, and the potential energy rating was B.
Land registry data shows one sale for 9 THE KNOWLE since 1st January 1995. The below table shows the price paid for the one sale, along with the average detached price in the Basildon 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 |
|---|---|---|---|
1999 5 MAR | £158,000 | £129,823 | 22% above HPI |
9 THE KNOWLE might now be worth an estimated £802,882.
This is based on house price inflation of 408.2%, between March 1999 and April 2026, for detached houses, in the Basildon local authority area, as calculated by the Office for National Statistics and published in their UK House Price Index (HPI).
The 408.2% inflationary increase is applied to the most recent sale price for 9 THE KNOWLE of £158,000 on 5th March 1999. For the value to have increased from £158,000 to £802,882 over the 26 years and eleven months to April 2026, the following assumptions must hold true:
9 THE KNOWLE is 245m², which includes three extensions, according to the EPC inspection conducted in April 2017. This puts it in the largest 10% of detached houses in Basildon, based on EPC data. The below chart shows the distribution of detached houses by size in Basildon, and where 9 THE KNOWLE lies on this distribution: 99% of detached houses are smaller than 9 THE KNOWLE, and 1% of detached houses are larger. Note that EPC data is not available for all properties in Basildon.

9 THE KNOWLE sits on a plot of roughly 0.247 of an acre, or 998m².
9 THE KNOWLE is located in BASILDON, in the SS16 postcode district.
Most recent sales first: