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.
23 HEOL MAERDY is a small extended semi-detached house of 87m², built sometime between 1976 and 1982, which could now be worth an estimated £218,541. It was last sold for £113,000 in August 2010, which was around 7% above the average August 2010 semi-detached price in the Caerphilly local authority area. The most recent EPC inspection was November 2008, where the current energy rating was D, and the potential energy rating was C.
Land registry data shows two sales for 23 HEOL MAERDY since 1st January 1995. The below table shows the price paid for the two sales, along with the average semi-detached price in the Caerphilly local authority area for the corresponding sale date. Both of the two 23 HEOL MAERDY 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 |
|---|---|---|---|
2010 20 AUG | £113,000 | £105,154 | 7% above HPI |
2002 16 SEP | £79,250 | £54,146 | 46% 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 two 23 HEOL MAERDY sales from September 2002 and August 2010 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 2002 sale was for 46% above the HPI. So the extrapolation line tracks at 46% above the HPI over time, until the August 2010 sale, where it falls to 7% above the HPI. The line then continues to track at 7% above the HPI.

23 HEOL MAERDY might now be worth an estimated £218,541.
This is based on house price inflation of 93.4%, between August 2010 and May 2026, 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 93.4% inflationary increase is applied to the most recent sale price for 23 HEOL MAERDY of £113,000 on 20th August 2010. For the value to have increased from £113,000 to £218,541 over the sixteen years and three months to May 2026, the following assumptions must hold true:
23 HEOL MAERDY is 87m², which includes one extension, according to the EPC inspection conducted in November 2008. This puts it in the smallest 30% of semi-detached houses houses in Caerphilly, based on EPC data. The below chart shows the distribution of semi-detached houses houses by size in Caerphilly, and where 23 HEOL MAERDY lies on this distribution: 25% of semi-detached houses houses are smaller than 23 HEOL MAERDY, and 75% of houses are larger. Note that EPC data is not available for all properties in Caerphilly.

23 HEOL MAERDY sits on a plot of roughly 0.064 of an acre, or 258m². The below map shows the location of 23 HEOL MAERDY, 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 23 HEOL MAERDY). 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.

23 HEOL MAERDY is located in CAERPHILLY, in the CF83 postcode district. The below map shows the position of No. 23 on HEOL MAERDY.

Most recent sales first: