40, SOUTHERNDOWN AVENUE, MAYALS, SWANSEA, SA3 5EL - £275,000

Based on the December 2024 Price Paid Data (released on 29th January 2025), the November 2024 House Price Index (released on 15th January 2025), and the December 2024 Energy Performance of Buildings Data (released on 31st January 2025). Sources

40 SOUTHERNDOWN AVENUE is a very large extended detached house of 160m², built sometime between 1967 and 1975. It was last sold for £275,000 in May 2004, which was around 73% above the average May 2004 detached price in the Swansea local authority area. The most recent EPC inspection was June 2017, where the current energy rating was D, and the potential energy rating was C.

40 SOUTHERNDOWN AVENUE Sold Prices

Land registry data shows two sales for 40 SOUTHERNDOWN AVENUE since 1^st January 1995. The below table shows the price paid for the two sales, along with the average detached price in the Swansea local authority area for the corresponding sale date. Both of the two 40 SOUTHERNDOWN AVENUE 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 27 MAY	£275,000	£159,397	73% above HPI
1999 12 NOV	£120,000	£86,854	38% above HPI

40 SOUTHERNDOWN AVENUE Price Paid vs. HPI Average

The below graph shows the average detached house price in the Swansea local authority area over time, sourced from the HPI. The two 40 SOUTHERNDOWN AVENUE sales from November 1999 and May 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 November 1999 sale was for 38% above the HPI. So the extrapolation line tracks at 38% above the HPI over time, until the May 2004 sale, where it rises to 73% above the HPI. The line then continues to track at 73% above the HPI.

How Large is 40 SOUTHERNDOWN AVENUE?

40 SOUTHERNDOWN AVENUE is 160m², which includes one extension, according to the EPC inspection conducted in June 2017. This puts it in the largest 20% of detached houses in Swansea, based on EPC data. The below chart shows the distribution of detached houses by size in Swansea, and where 40 SOUTHERNDOWN AVENUE lies on this distribution: 82% of detached houses are smaller than 40 SOUTHERNDOWN AVENUE, and 18% of houses are larger. Note that EPC data is not available for all properties in Swansea.

40 SOUTHERNDOWN AVENUE: Plot and Title Map

40 SOUTHERNDOWN AVENUE sits on a plot of roughly 0.076 of an acre, or 307m². The below map shows the location of 40 SOUTHERNDOWN AVENUE, 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 40 SOUTHERNDOWN AVENUE). 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 40 SOUTHERNDOWN AVENUE?

40 SOUTHERNDOWN AVENUE is located in MAYALS, in the SA3 postcode district. The below map shows the position of No. 40 on SOUTHERNDOWN AVENUE.