17, SYDENHAM CLOSE, ADDERBURY, BANBURY, OX17 3FB - £435,000

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 SYDENHAM CLOSE is a very small extended semi-detached house of 106m², built sometime between 2003 and 2006. It was last sold for £435,000 in May 2026, which was around 22% above the average May 2026 semi-detached price in the Cherwell local authority area. The most recent EPC inspection was October 2025, where the current energy rating was C, and the potential energy rating was C.

17 SYDENHAM CLOSE Sold Prices

Land registry data shows three sales for 17 SYDENHAM CLOSE 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 Cherwell local authority area for the corresponding sale date. All of the three 17 SYDENHAM CLOSE sales were for above 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
2026 28 MAY	£435,000	£357,254	22% above HPI
2019 13 SEP	£357,500	£281,154	27% above HPI
2006 4 MAY	£313,000	£192,747	62% above HPI

17 SYDENHAM CLOSE Price Paid vs. HPI Average

The below graph shows the average semi-detached house price in the Cherwell local authority area over time, sourced from the HPI. The three 17 SYDENHAM CLOSE sales between May 2006 and May 2026 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 September 2019 sale was for 27% above the HPI. So the extrapolation line tracks at 27% above the HPI over time, until the May 2026 sale, where it falls to 22% above the HPI. The line then continues to track at 22% above the HPI.

How Large is 17 SYDENHAM CLOSE?

17 SYDENHAM CLOSE is 106m², which includes two extensions, according to the EPC inspection conducted in October 2025. This puts it in the smallest 20% of semi-detached houses houses in Adderbury, based on EPC data. The below chart shows the distribution of semi-detached houses houses by size in Adderbury, and where 17 SYDENHAM CLOSE lies on this distribution: 13% of semi-detached houses houses are smaller than 17 SYDENHAM CLOSE, and 87% of houses are larger. Note that EPC data is not available for all properties in Adderbury.

17 SYDENHAM CLOSE: Plot and Title Map

17 SYDENHAM CLOSE sits on a plot of roughly 0.050 of an acre, or 202m². The below map shows the location of 17 SYDENHAM CLOSE, 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 17 SYDENHAM CLOSE). 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 17 SYDENHAM CLOSE?

17 SYDENHAM CLOSE is located in ADDERBURY, in the OX17 postcode district. The below map shows the position of No. 17 on SYDENHAM CLOSE.