17, CASTLE SQUARE, BENSON, WALLINGFORD, OX10 6SD - £290,000

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.

17 CASTLE SQUARE is a very large extended semi-detached house of 186m², built sometime before 1900, which could now be worth an estimated £959,994. It was last sold for £290,000 in June 2000, which was around 113% above the average June 2000 semi-detached price in the South Oxfordshire local authority area. The most recent EPC inspection was May 2025, where the current energy rating was D, and the potential energy rating was C.

17 CASTLE SQUARE Sold Prices

Land registry data shows one sale for 17 CASTLE SQUARE 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 South Oxfordshire 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
2000 8 JUN	£290,000	£136,280	113% above HPI

What might 17 CASTLE SQUARE be worth now?

17 CASTLE SQUARE might now be worth an estimated £959,994.

This is based on house price inflation of 231%, between June 2000 and May 2026, for semi-detached houses, in the South Oxfordshire local authority area, as calculated by the Office for National Statistics and published in their UK House Price Index (HPI).

The 231% inflationary increase is applied to the most recent sale price for 17 CASTLE SQUARE of £290,000 on 8th June 2000. For the value to have increased from £290,000 to £959,994 over the 26 years and one month to May 2026, the following assumptions must hold true:

• The value of 17 CASTLE SQUARE has moved in line with the HPI for semi-detached houses in the South Oxfordshire local authority area.
• The June 2000 sale price of £290,000 represented a fair market value for the property.
• The size, condition, and specification of 17 CASTLE SQUARE has not materially changed since June 2000.

How Large is 17 CASTLE SQUARE?

17 CASTLE SQUARE is 186m², which includes one extension, according to the EPC inspection conducted in May 2025. This puts it in the largest 10% of semi-detached houses in Benson, based on EPC data. The below chart shows the distribution of semi-detached houses by size in Benson, and where 17 CASTLE SQUARE lies on this distribution: 99% of semi-detached houses are smaller than 17 CASTLE SQUARE, and 1% of semi-detached houses are larger. Note that EPC data is not available for all properties in Benson.

17 CASTLE SQUARE: Plot

17 CASTLE SQUARE sits on a plot of roughly 0.118 of an acre, or 478m².

Where is 17 CASTLE SQUARE?

17 CASTLE SQUARE is located in BENSON, in the OX10 postcode district.