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.
4 CLOS COED DUON is a very small extended semi-detached house of 61m², built sometime between 1996 and 2002, which could now be worth an estimated £225,706. It was last sold for £51,950 in October 2000, which was around 17% above the average October 2000 semi-detached price in the Caerphilly local authority area. The most recent EPC inspection was June 2025, where the current energy rating was C, and the potential energy rating was B.
Land registry data shows three sales for 4 CLOS COED DUON since 1st January 1995. The below table shows the price paid for the three sales, along with the average semi-detached price in the Caerphilly local authority area for the corresponding sale date. All of the three 4 CLOS COED DUON 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 |
|---|---|---|---|
2000 17 OCT | £51,950 | £44,584 | 17% above HPI |
1998 28 AUG | £51,950 | £41,997 | 24% above HPI |
1996 31 MAY | £49,995 | £38,466 | 30% above HPI |
The below graph shows the average semi-detached house price in the Caerphilly local authority area over time, sourced from the HPI. The three 4 CLOS COED DUON sales between May 1996 and October 2000 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 August 1998 sale was for 24% above the HPI. So the extrapolation line tracks at 24% above the HPI over time, until the October 2000 sale, where it falls to 17% above the HPI. The line then continues to track at 17% above the HPI.

4 CLOS COED DUON might now be worth an estimated £225,706.
This is based on house price inflation of 334.5%, between October 2000 and July 2025, for semi-detached houses, in the Caerphilly local authority area, as calculated by the Office for National Statistics and published in their UK House Price Index (HPI).
The 334.5% inflationary increase is applied to the most recent sale price for 4 CLOS COED DUON of £51,950 on 17th October 2000. For the value to have increased from £51,950 to £225,706 over the 25 years and three months to July 2025, the following assumptions must hold true:
4 CLOS COED DUON is 61m², which includes one extension, according to the EPC inspection conducted in June 2025. This puts it in the smallest 10% of semi-detached houses houses in Blackwood, based on EPC data. The below chart shows the distribution of semi-detached houses houses by size in Blackwood, and where 4 CLOS COED DUON lies on this distribution: 3% of semi-detached houses houses are smaller than 4 CLOS COED DUON, and 97% of houses are larger. Note that EPC data is not available for all properties in Blackwood.

4 CLOS COED DUON sits on a plot of roughly 0.084 of an acre, or 341m². The below map shows the location of 4 CLOS COED DUON, 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 4 CLOS COED DUON). 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.

4 CLOS COED DUON is located in BLACKWOOD, in the NP12 postcode district. The below map shows the position of No. 4 on CLOS COED DUON.

Most recent sales first: