21, PLAS Y DDOL, JOHNSTOWN, CARMARTHEN, SA31 3PL - £200,000

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

21 PLAS Y DDOL is a midsized detached house of 120m², built sometime between 1991 and 1995, which could now be worth an estimated £267,975. It was last sold for £200,000 in September 2019, which was around 3% below the average September 2019 detached price in the Carmarthenshire local authority area. The most recent EPC inspection was April 2019, where the current energy rating was D, and the potential energy rating was C.

21 PLAS Y DDOL Sold Prices

Land registry data shows two sales for 21 PLAS Y DDOL since 1^st January 1995. The below table shows the price paid for the two sales, along with the average detached price in the Carmarthenshire local authority area for the corresponding sale date. One of the two 21 PLAS Y DDOL sales was for below the average price, whilst the other 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
2019 26 SEP	£200,000	£206,300	3% below HPI
1999 14 OCT	£66,000	£63,954	3% above HPI

21 PLAS Y DDOL Price Paid vs. HPI Average

The below graph shows the average detached house price in the Carmarthenshire local authority area over time, sourced from the HPI. The two 21 PLAS Y DDOL sales from October 1999 and September 2019 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 1999 sale was for 3% above the HPI. So the extrapolation line tracks at 3% above the HPI over time, until the September 2019 sale, where it falls to 3% below the HPI. The line then continues to track at 3% below the HPI.

What might 21 PLAS Y DDOL be worth now?

21 PLAS Y DDOL might now be worth an estimated £267,975.

This is based on house price inflation of 34%, between September 2019 and February 2025, for detached houses, in the Carmarthenshire local authority area, as calculated by the Office for National Statistics and published in their UK House Price Index (HPI).

The 34% inflationary increase is applied to the most recent sale price for 21 PLAS Y DDOL of £200,000 on 26th September 2019. For the value to have increased from £200,000 to £267,975 over the six years and seven months to February 2025, the following assumptions must hold true:

• The value of 21 PLAS Y DDOL has moved in line with the HPI for detached houses in the Carmarthenshire local authority area.
• The September 2019 sale price of £200,000 represented a fair market value for the property.
• The size, condition, and specification of 21 PLAS Y DDOL has not materially changed since September 2019.

How Large is 21 PLAS Y DDOL?

21 PLAS Y DDOL is 120m² according to the EPC inspection conducted in April 2019. This puts it in the largest 50% of detached houses houses in Carmarthen, based on EPC data. The below chart shows the distribution of detached houses houses by size in Carmarthen, and where 21 PLAS Y DDOL lies on this distribution: 58% of detached houses houses are smaller than 21 PLAS Y DDOL, and 42% of houses are larger. Note that EPC data is not available for all properties in Carmarthen.

21 PLAS Y DDOL: Plot and Title Map

21 PLAS Y DDOL sits on a plot of roughly 0.079 of an acre, or 318m². The below map shows the location of 21 PLAS Y DDOL, 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 21 PLAS Y DDOL). 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 21 PLAS Y DDOL?

21 PLAS Y DDOL is located in JOHNSTOWN, in the SA31 postcode district. The below map shows the position of No. 21 on PLAS Y DDOL.