15, HEOL DINAS ISAF, WILLIAMSTOWN, TONYPANDY, CF40 1NG - £190,000

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

15 HEOL DINAS ISAF is a small detached house of 97m², built sometime from 2007 onwards, which could now be worth an estimated £315,463. It was last sold for £190,000 in September 2015, which was around 18% above the average September 2015 detached price in the Rhondda Cynon Taf local authority area. The most recent EPC inspection was July 2012, where the current energy rating was C, and the potential energy rating was B.

15 HEOL DINAS ISAF Sold Prices

Land registry data shows three sales for 15 HEOL DINAS ISAF since 1^st January 1995. The below table shows the price paid for the three sales, along with the average detached price in the Rhondda Cynon Taf local authority area for the corresponding sale date. The three 15 HEOL DINAS ISAF sales were a mix of above the average price, and roughly equal to 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
2015 15 SEP	£190,000	£160,903	18% above HPI
2013 12 APR	£137,000	£137,090	Close to HPI
2008 8 APR	£199,950	£160,987	24% above HPI

15 HEOL DINAS ISAF Price Paid vs. HPI Average

The below graph shows the average detached house price in the Rhondda Cynon Taf local authority area over time, sourced from the HPI. The three 15 HEOL DINAS ISAF sales between April 2008 and September 2015 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 April 2013 sale roughly matched the HPI. So the extrapolation line tracks roughly in line with the HPI over time, until the September 2015 sale, where it rises to 18% above the HPI. The line then continues to track at 18% above the HPI.

What might 15 HEOL DINAS ISAF be worth now?

15 HEOL DINAS ISAF might now be worth an estimated £315,463.

This is based on house price inflation of 66%, between September 2015 and February 2025, for detached houses, in the Rhondda Cynon Taf local authority area, as calculated by the Office for National Statistics and published in their UK House Price Index (HPI).

The 66% inflationary increase is applied to the most recent sale price for 15 HEOL DINAS ISAF of £190,000 on 15th September 2015. For the value to have increased from £190,000 to £315,463 over the ten years and seven months to February 2025, the following assumptions must hold true:

• The value of 15 HEOL DINAS ISAF has moved in line with the HPI for detached houses in the Rhondda Cynon Taf local authority area.
• The September 2015 sale price of £190,000 represented a fair market value for the property.
• The size, condition, and specification of 15 HEOL DINAS ISAF has not materially changed since September 2015.

How Large is 15 HEOL DINAS ISAF?

15 HEOL DINAS ISAF is 97m² according to the EPC inspection conducted in July 2012. This puts it in the smallest 40% of detached houses houses in Tonypandy, based on EPC data. The below chart shows the distribution of detached houses houses by size in Tonypandy, and where 15 HEOL DINAS ISAF lies on this distribution: 32% of detached houses houses are smaller than 15 HEOL DINAS ISAF, and 66% of houses are larger. Note that EPC data is not available for all properties in Tonypandy.

15 HEOL DINAS ISAF: Plot and Title Map

15 HEOL DINAS ISAF sits on a plot of roughly 0.067 of an acre, or 273m². The below map shows the location of 15 HEOL DINAS ISAF, 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 15 HEOL DINAS ISAF). 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 15 HEOL DINAS ISAF?

15 HEOL DINAS ISAF is located in WILLIAMSTOWN, in the CF40 postcode district. The below map shows the position of No. 15 on HEOL DINAS ISAF.