11a, Castle Square, OX10 6SD

11a Castle Square is a 181 m² / 1,948 sq ft detached home in Benson. It sold for £325,000 in January 2000. Indexed forward to today's value, that sale is roughly £1,022k. Recent local prices imply a broad valuation context of £796k to £983k based on its internal area. The Land Registry and EPC data was last updated 4 August 2026.

Property data
Sale history
£325,000 on Jan 2000
Internal area
181 square metres (1,948 square feet) according to latest EPC inspection
Price per internal area

This property sold for £1,795 per square metre (£167 per square foot) in Jan 2000. Indexed forward to today's value, this is roughly £5,646 per square metre (£525 per square foot) .

Date Paid price Paid £/sqm Today's value Today's value £/sqm
Jan 2000 £325,000 £1,796 £1,021,919 £5,646

Calculated using the latest EPC internal area of 181 m². Earlier sale dates may not have had the same measured area available.

Valuation
The most recent sale price indexed forward to today's value is £1,021,919. This is one data point to inform the valuation. Another method is the valuation implied by what comparable homes are selling for. Homes in Benson are now selling for between £4,400 and £5,430 per square metre (£408 and £504 per square foot). Based on an internal area of 181 m², this implies a valuation between £796,000 and £983,000. Treat this as context only. For a valuation using hand-picked comparable sales, use the Advanced search tool — create a shortlist of similar condition homes, then export a valuation report.
Bedrooms
3
Type
Detached
Council tax band
E
Plot size
417 square metres (4,489 square feet) - map showing freehold boundary lines
EPC Inspections
Summary:
13 April 2026 - energy performance certificate grade C
Certificate:
View energy certificate on GOV.UK
Reason for EPC:
Marketed sale
Tenure:
Owner-occupied
Property type:
Detached House , has 5 habitable rooms. Estimated year built 1996 to 2002
Area:
181 sqm (1,948 square foot) total internal area
Comments:
Walls: Cavity wall, as built, insulated (assumed). Roof: Pitched, insulated. Heating: Boiler and radiators, mains gas.
Summary:
26 November 2025 - energy performance certificate grade C
Certificate:
View energy certificate on GOV.UK
Reason for EPC:
Marketed sale
Tenure:
Owner-occupied
Property type:
Detached House , has 5 habitable rooms. Estimated year built 1996 to 2002
Area:
148 sqm (1,593 square foot) total internal area
Comments:
Walls: Cavity wall, as built, insulated (assumed). Roof: Pitched, insulated. Heating: Boiler and radiators, mains gas.
Frequently asked questions

11a Castle Square is worth whatever price a willing buyer and seller agree upon. However, the following can provide useful context.

  • HouseMetric estimates the most recent sale price indexed forward to today's value is £1,021,919.
  • Based on an internal area of 181 m² and recent prices in Benson, this implies a lower and upper quartile range from £796,000 to £983,000, using HouseMetric's implied valuation methodology.

According to HM Land Registry price paid data, 11a Castle Square last sold for £325,000 in January 2000.

HouseMetric shows 11a Castle Square as 181 m² (1,948 sq ft), based on the latest internal area data available for this property. The bedroom count is shown as 3 bedrooms. Bedroom numbers can come from a previous estate agency listing, an EPC record, or an estimate based on the size of the property.

The latest EPC rating shown by HouseMetric is C, from an inspection dated 13 April 2026. EPC information comes from the public Energy Performance Certificate data for England and Wales.

When we last checked, 11a Castle Square was in council tax band E. Council Tax bands can change, so check the latest Valuation Office Agency Council Tax list.

11a Castle Square is in postcode OX10 6SD, in Benson. You can also view HouseMetric's sold-price page for Castle Square, OX10 6SD or analysis of the Benson property market.

HouseMetric combines HM Land Registry price paid data, Energy Performance Certificate data and Ordnance Survey/open data. The data were last updated 4 August 2026. Figures such as indexed values and local valuation ranges are calculated estimates for context, while official records can change as public datasets are updated.

For more detail on HouseMetric data sources, update frequency and valuation methods, see the HouseMetric FAQs.