21, DOWNS VALLEY, HARTLEY, LONGFIELD, DA3 7RA - £462,120

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.

21 DOWNS VALLEY is a very large semi-detached house of 142m², built sometime between 1976 and 1982, which could now be worth an estimated £624,348. It was last sold for £462,120 in January 2017, which was around 14% above the average January 2017 semi-detached price in the Sevenoaks local authority area. The most recent EPC inspection was May 2026, where the current energy rating was C, and the potential energy rating was B.

21 DOWNS VALLEY Sold Prices

Land registry data shows one sale for 21 DOWNS VALLEY since 1^st January 1995. The below table shows the price paid for the one sale, along with the average semi-detached price in the Sevenoaks 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
2017 30 JAN	£462,120	£406,602	14% above HPI

What might 21 DOWNS VALLEY be worth now?

21 DOWNS VALLEY might now be worth an estimated £624,348.

This is based on house price inflation of 35.1%, between January 2017 and April 2026, for semi-detached houses, in the Sevenoaks local authority area, as calculated by the Office for National Statistics and published in their UK House Price Index (HPI).

The 35.1% inflationary increase is applied to the most recent sale price for 21 DOWNS VALLEY of £462,120 on 30th January 2017. For the value to have increased from £462,120 to £624,348 over the eight years and nine months to April 2026, the following assumptions must hold true:

• The value of 21 DOWNS VALLEY has moved in line with the HPI for semi-detached houses in the Sevenoaks local authority area.
• The January 2017 sale price of £462,120 represented a fair market value for the property.
• The size, condition, and specification of 21 DOWNS VALLEY has not materially changed since January 2017.

How Large is 21 DOWNS VALLEY?

21 DOWNS VALLEY is 142m² according to the EPC inspection conducted in May 2026. This puts it in the largest 20% of semi-detached houses in Hartley, based on EPC data. The below chart shows the distribution of semi-detached houses by size in Hartley, and where 21 DOWNS VALLEY lies on this distribution: 87% of semi-detached houses are smaller than 21 DOWNS VALLEY, and 13% of semi-detached houses are larger. Note that EPC data is not available for all properties in Hartley.

21 DOWNS VALLEY: Plot

21 DOWNS VALLEY sits on a plot of roughly 0.072 of an acre, or 290m².

Where is 21 DOWNS VALLEY?

21 DOWNS VALLEY is located in HARTLEY, in the DA3 postcode district.