Y GELLI, LLANYBYDDER, SA40 9SD - £295,000

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

Y GELLI is a very large detached house of 161m², built sometime between 1950 and 1966, which could now be worth an estimated £418,769. It was last sold for £295,000 in December 2018, which was around 48% above the average December 2018 detached price in the Carmarthenshire local authority area. The most recent EPC inspection was August 2016, where the current energy rating was G, and the potential energy rating was B.

Y GELLI Sold Prices

Land registry data shows two sales for Y GELLI 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 Y GELLI sales was for above the average price, whilst the other was 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
2018 14 DEC	£295,000	£198,824	48% above HPI
2015 4 DEC	£165,000	£174,185	5% below HPI

Y GELLI 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 Y GELLI sales from December 2015 and December 2018 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 December 2015 sale was for 5% below the HPI. So the extrapolation line tracks at 5% below the HPI over time, until the December 2018 sale, where it rises to 48% above the HPI. The line then continues to track at 48% above the HPI.

What might Y GELLI be worth now?

Y GELLI might now be worth an estimated £418,769.

This is based on house price inflation of 42%, between December 2018 and December 2024, 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 42% inflationary increase is applied to the most recent sale price for Y GELLI of £295,000 on 14th December 2018. For the value to have increased from £295,000 to £418,769 over the six years to December 2024, the following assumptions must hold true:

• The value of Y GELLI has moved in line with the HPI for detached houses in the Carmarthenshire local authority area.
• The December 2018 sale price of £295,000 represented a fair market value for the property.
• The size, condition, and specification of Y GELLI has not materially changed since December 2018.

How Large is Y GELLI?

Y GELLI is 161m² according to the EPC inspection conducted in August 2016. This puts it in the largest 20% of detached houses houses in Llanybydder, based on EPC data. The below chart shows the distribution of detached houses houses by size in Llanybydder, and where Y GELLI lies on this distribution: 83% of detached houses houses are smaller than Y GELLI, and 16% of houses are larger. Note that EPC data is not available for all properties in Llanybydder.

Y GELLI: Plot and Title Map

Y GELLI sits on a plot of roughly 9.2 acres, or 37,198m². The below map shows the location of Y GELLI, 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 Y GELLI). 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 Y GELLI?

Y GELLI is located in LLANYBYDDER, in the SA40 postcode district. The below map shows the position of Y GELLI in LLANYBYDDER.