20, Y BERTHLOG, TRELOGAN, HOLYWELL, CH8 9BW - £97,500

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

20 Y BERTHLOG is a small extended semi-detached house of 88m², built sometime between 1950 and 1966, which could now be worth an estimated £133,808. It was last sold for £97,500 in January 2018, which was around 30% below the average January 2018 semi-detached price in the Flintshire local authority area. The most recent EPC inspection was October 2024, where the current energy rating was D, and the potential energy rating was C.

20 Y BERTHLOG Sold Prices

Land registry data shows two sales for 20 Y BERTHLOG since 1^st January 1995. The below table shows the price paid for the two sales, along with the average semi-detached price in the Flintshire local authority area for the corresponding sale date. Both of the two 20 Y BERTHLOG 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
2018 5 JAN	£97,500	£139,077	30% below HPI
2001 14 NOV	£45,000	£56,413	20% below HPI

20 Y BERTHLOG Price Paid vs. HPI Average

The below graph shows the average semi-detached house price in the Flintshire local authority area over time, sourced from the HPI. The two 20 Y BERTHLOG sales from November 2001 and January 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 November 2001 sale was for 20% below the HPI. So the extrapolation line tracks at 20% below the HPI over time, until the January 2018 sale, where it falls to 30% below the HPI. The line then continues to track at 30% below the HPI.

What might 20 Y BERTHLOG be worth now?

20 Y BERTHLOG might now be worth an estimated £133,808.

This is based on house price inflation of 37.2%, between January 2018 and February 2025, for semi-detached houses, in the Flintshire local authority area, as calculated by the Office for National Statistics and published in their UK House Price Index (HPI).

The 37.2% inflationary increase is applied to the most recent sale price for 20 Y BERTHLOG of £97,500 on 5th January 2018. For the value to have increased from £97,500 to £133,808 over the six years and eleven months to February 2025, the following assumptions must hold true:

• The value of 20 Y BERTHLOG has moved in line with the HPI for semi-detached houses in the Flintshire local authority area.
• The January 2018 sale price of £97,500 represented a fair market value for the property.
• The size, condition, and specification of 20 Y BERTHLOG has not materially changed since January 2018.

How Large is 20 Y BERTHLOG?

20 Y BERTHLOG is 88m², which includes one extension, according to the EPC inspection conducted in October 2024. This puts it in the smallest 30% of semi-detached houses houses in Trelogan, based on EPC data. The below chart shows the distribution of semi-detached houses houses by size in Trelogan, and where 20 Y BERTHLOG lies on this distribution: 21% of semi-detached houses houses are smaller than 20 Y BERTHLOG, and 75% of houses are larger. Note that EPC data is not available for all properties in Trelogan.

20 Y BERTHLOG: Plot and Title Map

20 Y BERTHLOG sits on a plot of roughly 19.4 acres, or 78,422m². The below map shows the location of 20 Y BERTHLOG, 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 Y BERTHLOG). 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 20 Y BERTHLOG?

20 Y BERTHLOG is located in TRELOGAN, in the CH8 postcode district. The below map shows the position of No. 20 on Y BERTHLOG.