1A, SOUTHDOWN, WANBOROUGH, SWINDON, SN4 0DB - £325,000

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.

1A SOUTHDOWN is a small detached house of 133m², built sometime between 1991 and 1995, which could now be worth an estimated £640,833. It was last sold for £325,000 in February 2004, which was around 38% above the average February 2004 detached price in the Swindon local authority area. The most recent EPC inspection was July 2026, where the current energy rating was D, and the potential energy rating was C.

1A SOUTHDOWN Sold Prices

Land registry data shows two sales for 1A SOUTHDOWN since 1^st January 1995. The below table shows the price paid for the two sales, along with the average detached price in the Swindon local authority area for the corresponding sale date. Both of the two 1A SOUTHDOWN 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
2004 12 FEB	£325,000	£235,059	38% above HPI
1996 2 FEB	£125,000	£94,067	33% above HPI

1A SOUTHDOWN Price Paid vs. HPI Average

The below graph shows the average detached house price in the Swindon local authority area over time, sourced from the HPI. The two 1A SOUTHDOWN sales from February 1996 and February 2004 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 February 1996 sale was for 33% above the HPI. So the extrapolation line tracks at 33% above the HPI over time, until the February 2004 sale, where it rises to 38% above the HPI. The line then continues to track at 38% above the HPI.

What might 1A SOUTHDOWN be worth now?

1A SOUTHDOWN might now be worth an estimated £640,833.

This is based on house price inflation of 97.2%, between February 2004 and May 2026, for detached houses, in the Swindon local authority area, as calculated by the Office for National Statistics and published in their UK House Price Index (HPI).

The 97.2% inflationary increase is applied to the most recent sale price for 1A SOUTHDOWN of £325,000 on 12th February 2004. For the value to have increased from £325,000 to £640,833 over the 21 years and nine months to May 2026, the following assumptions must hold true:

• The value of 1A SOUTHDOWN has moved in line with the HPI for detached houses in the Swindon local authority area.
• The February 2004 sale price of £325,000 represented a fair market value for the property.
• The size, condition, and specification of 1A SOUTHDOWN has not materially changed since February 2004.

How Large is 1A SOUTHDOWN?

1A SOUTHDOWN is 133m² according to the EPC inspection conducted in July 2026. This puts it in the smallest 40% of detached houses in Wanborough, based on EPC data. The below chart shows the distribution of detached houses by size in Wanborough, and where 1A SOUTHDOWN lies on this distribution: 34% of detached houses are smaller than 1A SOUTHDOWN, and 66% of detached houses are larger. Note that EPC data is not available for all properties in Wanborough.

Where is 1A SOUTHDOWN?

1A SOUTHDOWN is located in WANBOROUGH, in the SN4 postcode district. The below map shows the position of No. 1A on SOUTHDOWN.