21C, WINDMILL ROAD, THAME, OX9 2DR - £376,500

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.

21C WINDMILL ROAD is a very small semi-detached house of 68m², built sometime between 2007 and 2011, which could now be worth an estimated £393,680. It was last sold for £376,500 in June 2025, which was around 12% below the average June 2025 semi-detached price in the South Oxfordshire local authority area. The most recent EPC inspection was December 2023, where the current energy rating was C, and the potential energy rating was B.

21C WINDMILL ROAD Sold Prices

Land registry data shows three sales for 21C WINDMILL ROAD since 1^st January 1995. The below table shows the price paid for the three sales, along with the average semi-detached price in the South Oxfordshire local authority area for the corresponding sale date. All of the three 21C WINDMILL ROAD sales were for below the average price. The average price is sourced from the Office for National Statistics' House Price Index (HPI).

Date	Price	HPI Price	Variation from HPI
2025 2 JUN	£376,500	£427,040	12% below HPI
2022 12 JAN	£355,000	£411,772	14% below HPI
2007 12 JAN	£235,000	£242,680	3% below HPI

21C WINDMILL ROAD Price Paid vs. HPI Average

The below graph shows the average semi-detached house price in the South Oxfordshire local authority area over time, sourced from the HPI. The three 21C WINDMILL ROAD sales between January 2007 and June 2025 have been plotted on the graph. A line has been extrapolated to show what the value of the property might have been over time, following each sale, had it maintained the same margin above or below the HPI (as a percentage). For example, the January 2022 sale was for 14% below the HPI. So the extrapolation line tracks at 14% below the HPI over time, until the June 2025 sale, where it rises to 12% below the HPI. The line then continues to track at 12% below the HPI.

What might 21C WINDMILL ROAD be worth now?

21C WINDMILL ROAD might now be worth an estimated £393,680.

This is based on house price inflation of 4.6%, between June 2025 and April 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 4.6% inflationary increase is applied to the most recent sale price for 21C WINDMILL ROAD of £376,500 on 2nd June 2025. For the value to have increased from £376,500 to £393,680 over the one year and two months to April 2026, the following assumptions must hold true:

• The value of 21C WINDMILL ROAD has moved in line with the HPI for semi-detached houses in the South Oxfordshire local authority area.
• The June 2025 sale price of £376,500 represented a fair market value for the property.
• The size, condition, and specification of 21C WINDMILL ROAD has not materially changed since June 2025.

How Large is 21C WINDMILL ROAD?

21C WINDMILL ROAD is 68m² according to the EPC inspection conducted in December 2023. This puts it in the smallest 10% of semi-detached houses houses in Thame, based on EPC data. The below chart shows the distribution of semi-detached houses houses by size in Thame, and where 21C WINDMILL ROAD lies on this distribution: 2% of semi-detached houses houses are smaller than 21C WINDMILL ROAD, and 97% of houses are larger. Note that EPC data is not available for all properties in Thame.

21C WINDMILL ROAD: Plot and Title Map

21C WINDMILL ROAD sits on a plot of roughly 0.021 of an acre, or 83m². The below map shows the location of 21C WINDMILL ROAD, an approximate outline of the building(s), and the indicative extent of the property. The plot extent is a Land Registry INSPIRE Index Polygon, and it is important to note that a title may include more than one polygon, whereas only one polygon is shown on the map (the polygon which intersects with the position of 21C WINDMILL ROAD). The full extent of the land contained in any registered title can only be identified from the individual title plan. The maps on this page should not be relied upon to establish the extent of a title.

Where is 21C WINDMILL ROAD?

21C WINDMILL ROAD is located in THAME, in the OX9 postcode district. The below map shows the position of No. 21C on WINDMILL ROAD.