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.
11 OLD CONVENT is a very large detached house of 188m², built sometime before 1900, which could now be worth an estimated £809,029. It was last sold for £340,000 in September 2002, which was around 10% above the average September 2002 detached price in the Mid Sussex local authority area. The most recent EPC inspection was April 2010, where the current energy rating was F, and the potential energy rating was E.
Land registry data shows one sale for 11 OLD CONVENT since 1st January 1995. The below table shows the price paid for the one sale, along with the average detached price in the Mid Sussex 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 |
|---|---|---|---|
2002 23 SEP | £340,000 | £307,709 | 10% above HPI |
11 OLD CONVENT might now be worth an estimated £809,029.
This is based on house price inflation of 137.9%, between September 2002 and May 2026, for detached houses, in the Mid Sussex local authority area, as calculated by the Office for National Statistics and published in their UK House Price Index (HPI).
The 137.9% inflationary increase is applied to the most recent sale price for 11 OLD CONVENT of £340,000 on 23rd September 2002. For the value to have increased from £340,000 to £809,029 over the 24 years and four months to May 2026, the following assumptions must hold true:
11 OLD CONVENT is 188m² according to the EPC inspection conducted in April 2010. This puts it in the largest 10% of detached houses in East Grinstead, based on EPC data. The below chart shows the distribution of detached houses by size in East Grinstead, and where 11 OLD CONVENT lies on this distribution: 91% of detached houses are smaller than 11 OLD CONVENT, and 9% of detached houses are larger. Note that EPC data is not available for all properties in East Grinstead.

11 OLD CONVENT is located in EAST GRINSTEAD, in the RH19 postcode district.
Most recent sales first: