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.
21 OVERLAND ROAD is a very large extended detached house of 182m², built sometime between 1930 and 1949, which could now be worth an estimated £688,835. It was last sold for £660,000 in January 2025, which was around 110% above the average January 2025 detached price in the Swansea local authority area. The most recent EPC inspection was October 2024, where the current energy rating was C, and the potential energy rating was B.
Land registry data shows five sales for 21 OVERLAND ROAD since 1st January 1995. The below table shows the price paid for the five sales, along with the average detached price in the Swansea local authority area for the corresponding sale date. Most of the five 21 OVERLAND ROAD 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 |
|---|---|---|---|
2025 16 JAN | £660,000 | £315,014 | 110% above HPI |
2003 17 SEP | £287,000 | £138,595 | 107% above HPI |
2002 18 SEP | £40,000 | £108,982 | 63% below HPI |
1999 17 DEC | £146,500 | £86,906 | 69% above HPI |
1997 14 FEB | £82,000 | £74,631 | 10% above HPI |
The below graph shows the average detached house price in the Swansea local authority area over time, sourced from the HPI. The five 21 OVERLAND ROAD sales between February 1997 and January 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 September 2003 sale was for 107% above the HPI. So the extrapolation line tracks at 107% above the HPI over time, until the January 2025 sale, where it rises to 110% above the HPI. The line then continues to track at 110% above the HPI.

21 OVERLAND ROAD might now be worth an estimated £688,835.
This is based on house price inflation of 4.4%, between January 2025 and May 2026, for detached houses, in the Swansea local authority area, as calculated by the Office for National Statistics and published in their UK House Price Index (HPI).
The 4.4% inflationary increase is applied to the most recent sale price for 21 OVERLAND ROAD of £660,000 on 16th January 2025. For the value to have increased from £660,000 to £688,835 over the eight months to May 2026, the following assumptions must hold true:
21 OVERLAND ROAD is 182m², which includes one extension, according to the EPC inspection conducted in October 2024. This puts it in the largest 20% of detached houses houses in Swansea, based on EPC data. The below chart shows the distribution of detached houses houses by size in Swansea, and where 21 OVERLAND ROAD lies on this distribution: 87% of detached houses houses are smaller than 21 OVERLAND ROAD, and 12% of houses are larger. Note that EPC data is not available for all properties in Swansea.

21 OVERLAND ROAD sits on a plot of roughly 0.499 of an acre, or 2,019m². The below map shows the location of 21 OVERLAND 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 21 OVERLAND 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.

21 OVERLAND ROAD is located in MUMBLES, in the SA3 postcode district. The below map shows the position of No. 21 on OVERLAND ROAD.

Most recent sales first: