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.
20 MAES MACSEN is a small semi-detached house of 87m², built in 2021, which could now be worth an estimated £237,392. It was last sold for £225,000 in June 2025, which was around 32% above the average June 2025 semi-detached price in the Carmarthenshire local authority area. The most recent EPC inspection was January 2021, where the current energy rating was B, and the potential energy rating was A.
Land registry data shows two sales for 20 MAES MACSEN since 1st January 1995. The below table shows the price paid for the two sales, along with the average semi-detached price in the Carmarthenshire local authority area for the corresponding sale date. Both of the two 20 MAES MACSEN 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 |
|---|---|---|---|
2025 23 JUN | £225,000 | £170,463 | 32% above HPI |
2021 15 MAR | £156,995 | £142,636 | 10% above HPI |
The below graph shows the average semi-detached house price in the Carmarthenshire local authority area over time, sourced from the HPI. The two 20 MAES MACSEN sales from March 2021 and June 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 March 2021 sale was for 10% above the HPI. So the extrapolation line tracks at 10% above the HPI over time, until the June 2025 sale, where it rises to 32% above the HPI. The line then continues to track at 32% above the HPI.

20 MAES MACSEN might now be worth an estimated £237,392.
This is based on house price inflation of 5.5%, between June 2025 and May 2026, for semi-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 5.5% inflationary increase is applied to the most recent sale price for 20 MAES MACSEN of £225,000 on 23rd June 2025. For the value to have increased from £225,000 to £237,392 over the one year and one month to May 2026, the following assumptions must hold true:
20 MAES MACSEN is 87m² according to the EPC inspection conducted in January 2021. This puts it in the smallest 30% of semi-detached houses houses in Carmarthen, based on EPC data. The below chart shows the distribution of semi-detached houses houses by size in Carmarthen, and where 20 MAES MACSEN lies on this distribution: 21% of semi-detached houses houses are smaller than 20 MAES MACSEN, and 78% of houses are larger. Note that EPC data is not available for all properties in Carmarthen.

20 MAES MACSEN sits on a plot of roughly 0.052 of an acre, or 210m². The below map shows the location of 20 MAES MACSEN, 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 20 MAES MACSEN). 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.

20 MAES MACSEN is located in CARMARTHEN, in the SA31 postcode district. The below map shows the position of No. 20 on MAES MACSEN.

Most recent sales first: