15a, Park Close, OX11 0AA

15a Park Close is a 79 m² / 850 sq ft semi-detached home in Harwell. It sold for £360,000 in February 2025. Indexed forward to today's value, that sale is roughly £383k. Recent local prices imply a broad valuation context of £310k to £376k based on its internal area. The Land Registry and EPC data was last updated 1 June 2026.

Property data
Sale history
Date Paid price Annual growth After inflation
Feb 2025 £360,000 4.3% 1.5%
Oct 2012 £213,500 4.5% 1.6%
Feb 2006 £159,000 11.1% 9.4%
Aug 1997 £64,950 na na
Internal area
79 square metres (850 square feet) according to latest EPC inspection
Price per internal area

This property sold for £4,556 per square metre (£423 per square foot) in Feb 2025. Indexed forward to today's value, this is roughly £4,846 per square metre (£450 per square foot) .

Date Paid price Paid £/sqm Today's value Today's value £/sqm
Feb 2025 £360,000 £4,557 £382,841 £4,846
Oct 2012 £213,500 £2,703 £337,951 £4,278
Feb 2006 £159,000 £2,013 £296,579 £3,754
Aug 1997 £64,950 £822 £314,811 £3,985

Calculated using the latest EPC internal area of 79 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 £382,841. 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 £3,920 and £4,760 per square metre (£364 and £442 per square foot). Based on an internal area of 79 m², this implies a valuation between £310,000 and £376,000. 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
EPC Inspections
Summary:
22 May 2024 - energy performance certificate grade B
Certificate:
View energy certificate on GOV.UK
Reason for EPC:
New dwelling
Tenure:
Unknown
Property type:
Detached House Estimated year built None to None
Area:
79 sqm (850 square foot) total internal area
Comments:
Heating: Boiler and radiators, mains gas.
Frequently asked questions

15a Park Close 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 £382,841.
  • Based on an internal area of 79 m² and recent prices in Harwell, this implies a lower and upper quartile range from £310,000 to £376,000, using HouseMetric's implied valuation methodology.

According to HM Land Registry price paid data, 15a Park Close last sold for £360,000 in February 2025.

HouseMetric shows 15a Park Close as 79 m² (850 sq ft), based on the latest internal area data available for this property.

The latest EPC rating shown by HouseMetric is B, from an inspection dated 22 May 2024. EPC information comes from the public Energy Performance Certificate data for England and Wales.

15a Park Close is in postcode OX11 0AA, in Harwell. You can also view HouseMetric's sold-price page for Park Close, OX11 0AA or analysis of the Harwell property market.

HouseMetric combines HM Land Registry price paid data, Energy Performance Certificate data and Ordnance Survey/open data. The data were last updated 1 June 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.