1, CELYN ISAF, TONYREFAIL, PORTH, CF39 8AN - £142,000

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.

1 CELYN ISAF is a small extended semi-detached house of 96m², built sometime between 1967 and 1975, which could now be worth an estimated £271,324. It was last sold for £142,000 in October 2014, which was around 48% above the average October 2014 semi-detached price in the Rhondda Cynon Taf local authority area. The most recent EPC inspection was July 2014, where the current energy rating was E, and the potential energy rating was B.

1 CELYN ISAF Sold Prices

Land registry data shows three sales for 1 CELYN ISAF since 1^st January 1995. The below table shows the price paid for the three sales, along with the average semi-detached price in the Rhondda Cynon Taf local authority area for the corresponding sale date. All of the three 1 CELYN ISAF 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 10 OCT	£142,000	£96,115	48% above HPI
1998 14 JAN	£63,000	£33,508	88% above HPI
1996 2 FEB	£54,000	£33,486	61% above HPI

1 CELYN ISAF Price Paid vs. HPI Average

The below graph shows the average semi-detached house price in the Rhondda Cynon Taf local authority area over time, sourced from the HPI. The three 1 CELYN ISAF sales between February 1996 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 January 1998 sale was for 88% above the HPI. So the extrapolation line tracks at 88% above the HPI over time, until the October 2014 sale, where it falls to 48% above the HPI. The line then continues to track at 48% above the HPI.

What might 1 CELYN ISAF be worth now?

1 CELYN ISAF might now be worth an estimated £271,324.

This is based on house price inflation of 91.1%, between October 2014 and May 2026, for semi-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 91.1% inflationary increase is applied to the most recent sale price for 1 CELYN ISAF of £142,000 on 10th October 2014. For the value to have increased from £142,000 to £271,324 over the twelve years and five months to May 2026, the following assumptions must hold true:

• The value of 1 CELYN ISAF has moved in line with the HPI for semi-detached houses in the Rhondda Cynon Taf local authority area.
• The October 2014 sale price of £142,000 represented a fair market value for the property.
• The size, condition, and specification of 1 CELYN ISAF has not materially changed since October 2014.

How Large is 1 CELYN ISAF?

1 CELYN ISAF is 96m², which includes one extension, according to the EPC inspection conducted in July 2014. This puts it in the smallest 30% of semi-detached houses houses in Tonyrefail, based on EPC data. The below chart shows the distribution of semi-detached houses houses by size in Tonyrefail, and where 1 CELYN ISAF lies on this distribution: 23% of semi-detached houses houses are smaller than 1 CELYN ISAF, and 77% of houses are larger. Note that EPC data is not available for all properties in Tonyrefail.

1 CELYN ISAF: Plot and Title Map

1 CELYN ISAF sits on a plot of roughly 0.077 of an acre, or 311m². The below map shows the location of 1 CELYN 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 1 CELYN 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 1 CELYN ISAF?

1 CELYN ISAF is located in TONYREFAIL, in the CF39 postcode district. The below map shows the position of No. 1 on CELYN ISAF.