28, Diamond Drive, OX11 6FH
28 Diamond Drive is a 111 m² / 1,195 sq ft semi-detached home in Harwell. It sold for £395,000 in September 2025. Indexed forward to today's value, that sale is roughly £408k. Recent local prices imply a broad valuation context of £396k to £527k based on its internal area. The Land Registry and EPC data was last updated 1 June 2026.
- Sale history
-
Date Paid price Annual growth After inflation Sep 2025 £395,000 1.5% -2.1% Dec 2017 New build New £352,000 na na - Internal area
- 111 square metres (1,195 square feet) according to latest EPC inspection
- Price per internal area
-
This property sold for £3,558 per square metre (£331 per square foot) in Sep 2025. Indexed forward to today's value, this is roughly £3,677 per square metre (£342 per square foot) .
Date Paid price Paid £/sqm Today's value Today's value £/sqm Sep 2025 £395,000 £3,559 £408,123 £3,677 Dec 2017 £352,000 £3,171 £383,327 £3,453 Calculated using the latest EPC internal area of 111 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 £408,123. This is one data point to inform the valuation. Another method is the valuation implied by what comparable homes are selling for. Homes in Harwell are now selling for between £3,570 and £4,750 per square metre (£331 and £441 per square foot). Based on an internal area of 111 m², this implies a valuation between £396,000 and £527,000. 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
- na
- Type
- Semi-detached
- Council tax band
- na
- Plot size
- 219 square metres (2,357 square feet) - map showing freehold boundary lines
- Summary:
- 07 December 2017 - energy performance certificate grade B
- Certificate:
- View energy certificate on GOV.UK
- Reason for EPC:
- New dwelling
- Tenure:
- Unknown
- Property type:
- Semi-Detached House Estimated year built None to None
- Area:
- 111 sqm (1,195 square foot) total internal area
- Comments:
- Heating: Boiler and radiators, mains gas.
28 Diamond Drive 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 £408,123.
- Based on an internal area of 111 m² and recent prices in Harwell, this implies a lower and upper quartile range from £396,000 to £527,000, using HouseMetric's implied valuation methodology.
For more detail on HouseMetric data sources, update frequency and valuation methods, see the HouseMetric FAQs.