13, PLAS Y DDOL, JOHNSTOWN, CARMARTHEN, SA31 3PL - £232,000

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.

13 PLAS Y DDOL is a very small detached house of 80m², built sometime between 1991 and 1995, which could now be worth an estimated £237,584. It was last sold for £232,000 in August 2025, which was around 14% below the average August 2025 detached price in the Carmarthenshire local authority area. The most recent EPC inspection was March 2025, where the current energy rating was C, and the potential energy rating was B.

13 PLAS Y DDOL Sold Prices

Land registry data shows two sales for 13 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. Both of the two 13 PLAS Y DDOL sales were for below 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
2025 22 AUG	£232,000	£269,180	14% below HPI
2010 15 APR	£165,000	£167,210	1% below HPI

13 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 13 PLAS Y DDOL sales from April 2010 and August 2025 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 2010 sale was for 1% below the HPI. So the extrapolation line tracks at 1% below the HPI over time, until the August 2025 sale, where it falls to 14% below the HPI. The line then continues to track at 14% below the HPI.

What might 13 PLAS Y DDOL be worth now?

13 PLAS Y DDOL might now be worth an estimated £237,584.

This is based on house price inflation of 2.4%, between August 2025 and October 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 2.4% inflationary increase is applied to the most recent sale price for 13 PLAS Y DDOL of £232,000 on 22nd August 2025. For the value to have increased from £232,000 to £237,584 over the ten months to October 2025, the following assumptions must hold true:

• The value of 13 PLAS Y DDOL has moved in line with the HPI for detached houses in the Carmarthenshire local authority area.
• The August 2025 sale price of £232,000 represented a fair market value for the property.
• The size, condition, and specification of 13 PLAS Y DDOL has not materially changed since August 2025.

How Large is 13 PLAS Y DDOL?

13 PLAS Y DDOL is 80m² according to the EPC inspection conducted in March 2025. This puts it in the smallest 20% 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 13 PLAS Y DDOL lies on this distribution: 11% of detached houses houses are smaller than 13 PLAS Y DDOL, and 88% of houses are larger. Note that EPC data is not available for all properties in Carmarthen.

13 PLAS Y DDOL: Plot and Title Map

13 PLAS Y DDOL sits on a plot of roughly 0.067 of an acre, or 271m². The below map shows the location of 13 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 13 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 13 PLAS Y DDOL?

13 PLAS Y DDOL is located in JOHNSTOWN, in the SA31 postcode district. The below map shows the position of No. 13 on PLAS Y DDOL.