10, ALLT IOAN, JOHNSTOWN, CARMARTHEN, SA31 3SB - £163,750

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

10 ALLT IOAN is a very small detached house of 75m², built sometime between 1996 and 2002, which could now be worth an estimated £265,459. It was last sold for £163,750 in October 2009, which was around 4% below the average October 2009 detached price in the Carmarthenshire local authority area. The most recent EPC inspection was January 2020, where the current energy rating was C, and the potential energy rating was B.

10 ALLT IOAN Sold Prices

Land registry data shows four sales for 10 ALLT IOAN since 1^st January 1995. The below table shows the price paid for the four sales, along with the average detached price in the Carmarthenshire local authority area for the corresponding sale date. Most of the four 10 ALLT IOAN 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
2009 23 OCT	£163,750	£170,509	4% below HPI
2007 28 SEP	£181,000	£188,250	4% below HPI
2005 26 AUG	£151,000	£165,405	9% below HPI
1998 13 FEB	£65,995	£58,949	12% above HPI

10 ALLT IOAN 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 four 10 ALLT IOAN sales between February 1998 and October 2009 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 September 2007 sale was for 4% below the HPI. So the extrapolation line tracks at 4% below the HPI over time, until the October 2009 sale, which was also at 4% below the HPI.

What might 10 ALLT IOAN be worth now?

10 ALLT IOAN might now be worth an estimated £265,459.

This is based on house price inflation of 62.1%, between October 2009 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 62.1% inflationary increase is applied to the most recent sale price for 10 ALLT IOAN of £163,750 on 23rd October 2009. For the value to have increased from £163,750 to £265,459 over the sixteen years and eight months to February 2025, the following assumptions must hold true:

• The value of 10 ALLT IOAN has moved in line with the HPI for detached houses in the Carmarthenshire local authority area.
• The October 2009 sale price of £163,750 represented a fair market value for the property.
• The size, condition, and specification of 10 ALLT IOAN has not materially changed since October 2009.

How Large is 10 ALLT IOAN?

10 ALLT IOAN is 75m² according to the EPC inspection conducted in January 2020. This puts it in the smallest 10% 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 10 ALLT IOAN lies on this distribution: 8% of detached houses houses are smaller than 10 ALLT IOAN, and 92% of houses are larger. Note that EPC data is not available for all properties in Carmarthen.

10 ALLT IOAN: Plot and Title Map

10 ALLT IOAN sits on a plot of roughly 0.072 of an acre, or 292m². The below map shows the location of 10 ALLT IOAN, 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 10 ALLT IOAN). 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 10 ALLT IOAN?

10 ALLT IOAN is located in JOHNSTOWN, in the SA31 postcode district. The below map shows the position of No. 10 on ALLT IOAN.