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.
7 BYDOWN is a very large detached house of 161m², built sometime between 1983 and 1990, which could now be worth an estimated £594,670. It was last sold for £130,000 in June 1998, which was about the average June 1998 detached price in the Lewes local authority area. The most recent EPC inspection was October 2013, where the current energy rating was C, and the potential energy rating was B.
Land registry data shows one sale for 7 BYDOWN since 1st January 1995. The below table shows the price paid for the one sale, along with the average detached price in the Lewes 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 |
|---|---|---|---|
1998 24 JUN | £130,000 | £130,535 | Close to HPI |
7 BYDOWN might now be worth an estimated £594,670.
This is based on house price inflation of 357.4%, between June 1998 and May 2026, for detached houses, in the Lewes local authority area, as calculated by the Office for National Statistics and published in their UK House Price Index (HPI).
The 357.4% inflationary increase is applied to the most recent sale price for 7 BYDOWN of £130,000 on 24th June 1998. For the value to have increased from £130,000 to £594,670 over the 28 years and one month to May 2026, the following assumptions must hold true:
7 BYDOWN is 161m² according to the EPC inspection conducted in October 2013. This puts it in the largest 20% of detached houses in Seaford, based on EPC data. The below chart shows the distribution of detached houses by size in Seaford, and where 7 BYDOWN lies on this distribution: 87% of detached houses are smaller than 7 BYDOWN, and 13% of detached houses are larger. Note that EPC data is not available for all properties in Seaford.

7 BYDOWN sits on a plot of roughly 0.085 of an acre, or 345m².
7 BYDOWN is located in SEAFORD, in the BN25 postcode district.
Most recent sales first: