16, CASTELL LLWYD, YSTRAD MYNACH, HENGOED, CF82 7DJ - £150,000

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

16 CASTELL LLWYD is a very small extended detached house of 84m², built sometime between 1996 and 2002, which could now be worth an estimated £277,730. It was last sold for £150,000 in August 2013, which was around 10% below the average August 2013 detached price in the Caerphilly local authority area. The most recent EPC inspection was April 2013, where the current energy rating was C, and the potential energy rating was B.

16 CASTELL LLWYD Sold Prices

Land registry data shows three sales for 16 CASTELL LLWYD since 1^st January 1995. The below table shows the price paid for the three sales, along with the average detached price in the Caerphilly local authority area for the corresponding sale date. Two of the three 16 CASTELL LLWYD sales were for below the average price, whilst one was 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
2013 23 AUG	£150,000	£167,177	10% below HPI
2009 27 JAN	£160,000	£158,032	1% above HPI
1997 8 AUG	£64,500	£67,957	5% below HPI

16 CASTELL LLWYD Price Paid vs. HPI Average

The below graph shows the average detached house price in the Caerphilly local authority area over time, sourced from the HPI. The three 16 CASTELL LLWYD sales between August 1997 and August 2013 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 January 2009 sale was for 1% above the HPI. So the extrapolation line tracks at 1% above the HPI over time, until the August 2013 sale, where it falls to 10% below the HPI. The line then continues to track at 10% below the HPI.

What might 16 CASTELL LLWYD be worth now?

16 CASTELL LLWYD might now be worth an estimated £277,730.

This is based on house price inflation of 85.2%, between August 2013 and December 2024, for 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 85.2% inflationary increase is applied to the most recent sale price for 16 CASTELL LLWYD of £150,000 on 23rd August 2013. For the value to have increased from £150,000 to £277,730 over the ten years and eight months to December 2024, the following assumptions must hold true:

• The value of 16 CASTELL LLWYD has moved in line with the HPI for detached houses in the Caerphilly local authority area.
• The August 2013 sale price of £150,000 represented a fair market value for the property.
• The size, condition, and specification of 16 CASTELL LLWYD has not materially changed since August 2013.

How Large is 16 CASTELL LLWYD?

16 CASTELL LLWYD is 84m², which includes one extension, according to the EPC inspection conducted in April 2013. This puts it in the smallest 20% of detached houses houses in Ystrad Mynach, based on EPC data. The below chart shows the distribution of detached houses houses by size in Ystrad Mynach, and where 16 CASTELL LLWYD lies on this distribution: 16% of detached houses houses are smaller than 16 CASTELL LLWYD, and 82% of houses are larger. Note that EPC data is not available for all properties in Ystrad Mynach.

16 CASTELL LLWYD: Plot and Title Map

16 CASTELL LLWYD sits on a plot of roughly 0.048 of an acre, or 193m². The below map shows the location of 16 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 16 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 16 CASTELL LLWYD?

16 CASTELL LLWYD is located in YSTRAD MYNACH, in the CF82 postcode district. The below map shows the position of No. 16 on CASTELL LLWYD.