7, CASTELL LLWYD, YSTRAD MYNACH, HENGOED, CF82 7DJ - £152,500

Based on the January 2025 Price Paid Data (released on 3rd March 2025), the December 2024 House Price Index (released on 19th February 2025), and the January 2025 Energy Performance of Buildings Data (released on 27th February 2025). Sources

7 CASTELL LLWYD is a very small extended semi-detached house of 83m², built sometime between 1996 and 2002, which could now be worth an estimated £277,816. It was last sold for £152,500 in October 2014, which was around 41% above the average October 2014 semi-detached price in the Caerphilly local authority area. The most recent EPC inspection was June 2014, where the current energy rating was C, and the potential energy rating was B.

7 CASTELL LLWYD Sold Prices

Land registry data shows two sales for 7 CASTELL LLWYD since 1^st 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 7 CASTELL LLWYD 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
2014 24 OCT	£152,500	£107,997	41% above HPI
1997 17 OCT	£58,995	£39,472	49% above HPI

7 CASTELL LLWYD Price Paid vs. HPI Average

The below graph shows the average semi-detached house price in the Caerphilly local authority area over time, sourced from the HPI. The two 7 CASTELL LLWYD sales from October 1997 and October 2014 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 October 1997 sale was for 49% above the HPI. So the extrapolation line tracks at 49% above the HPI over time, until the October 2014 sale, where it falls to 41% above the HPI. The line then continues to track at 41% above the HPI.

What might 7 CASTELL LLWYD be worth now?

7 CASTELL LLWYD might now be worth an estimated £277,816.

This is based on house price inflation of 82.2%, between October 2014 and December 2024, 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 82.2% inflationary increase is applied to the most recent sale price for 7 CASTELL LLWYD of £152,500 on 24th October 2014. For the value to have increased from £152,500 to £277,816 over the nine years and ten months to December 2024, the following assumptions must hold true:

• The value of 7 CASTELL LLWYD has moved in line with the HPI for semi-detached houses in the Caerphilly local authority area.
• The October 2014 sale price of £152,500 represented a fair market value for the property.
• The size, condition, and specification of 7 CASTELL LLWYD has not materially changed since October 2014.

How Large is 7 CASTELL LLWYD?

7 CASTELL LLWYD is 83m², which includes one extension, according to the EPC inspection conducted in June 2014. This puts it in the smallest 20% of semi-detached houses houses in Ystrad Mynach, based on EPC data. The below chart shows the distribution of semi-detached houses houses by size in Ystrad Mynach, and where 7 CASTELL LLWYD lies on this distribution: 14% of semi-detached houses houses are smaller than 7 CASTELL LLWYD, and 85% of houses are larger. Note that EPC data is not available for all properties in Ystrad Mynach.

7 CASTELL LLWYD: Plot and Title Map

7 CASTELL LLWYD sits on a plot of roughly 0.048 of an acre, or 195m². The below map shows the location of 7 CASTELL LLWYD, 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 7 CASTELL LLWYD). 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 7 CASTELL LLWYD?

7 CASTELL LLWYD is located in YSTRAD MYNACH, in the CF82 postcode district. The below map shows the position of No. 7 on CASTELL LLWYD.