12, MILL COMMON, UNDY, CALDICOT, NP26 3JH - £309,000

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

12 MILL COMMON is a large detached house of 139m², built sometime between 1976 and 1982, which could now be worth an estimated £395,861. It was last sold for £309,000 in September 2018, which was around 19% below the average September 2018 detached price in the Monmouthshire local authority area. The most recent EPC inspection was February 2023, where the current energy rating was D, and the potential energy rating was C.

12 MILL COMMON Sold Prices

Land registry data shows two sales for 12 MILL COMMON since 1^st January 1995. The below table shows the price paid for the two sales, along with the average detached price in the Monmouthshire local authority area for the corresponding sale date. Both of the two 12 MILL COMMON 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 11 SEP	£309,000	£380,194	19% below HPI
2006 26 JUL	£220,000	£277,266	21% below HPI

12 MILL COMMON Price Paid vs. HPI Average

The below graph shows the average detached house price in the Monmouthshire local authority area over time, sourced from the HPI. The two 12 MILL COMMON sales from July 2006 and September 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 July 2006 sale was for 21% below the HPI. So the extrapolation line tracks at 21% below the HPI over time, until the September 2018 sale, where it rises to 19% below the HPI. The line then continues to track at 19% below the HPI.

What might 12 MILL COMMON be worth now?

12 MILL COMMON might now be worth an estimated £395,861.

This is based on house price inflation of 28.1%, between September 2018 and December 2024, for detached houses, in the Monmouthshire local authority area, as calculated by the Office for National Statistics and published in their UK House Price Index (HPI).

The 28.1% inflationary increase is applied to the most recent sale price for 12 MILL COMMON of £309,000 on 11th September 2018. For the value to have increased from £309,000 to £395,861 over the five years and nine months to December 2024, the following assumptions must hold true:

• The value of 12 MILL COMMON has moved in line with the HPI for detached houses in the Monmouthshire local authority area.
• The September 2018 sale price of £309,000 represented a fair market value for the property.
• The size, condition, and specification of 12 MILL COMMON has not materially changed since September 2018.

How Large is 12 MILL COMMON?

12 MILL COMMON is 139m² according to the EPC inspection conducted in February 2023. This puts it in the largest 30% of detached houses houses in Magor, based on EPC data. The below chart shows the distribution of detached houses houses by size in Magor, and where 12 MILL COMMON lies on this distribution: 71% of detached houses houses are smaller than 12 MILL COMMON, and 29% of houses are larger. Note that EPC data is not available for all properties in Magor.

12 MILL COMMON: Plot and Title Map

12 MILL COMMON sits on a plot of roughly 0.080 of an acre, or 324m². The below map shows the location of 12 MILL COMMON, 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 12 MILL COMMON). 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 12 MILL COMMON?

12 MILL COMMON is located in UNDY, in the NP26 postcode district. The below map shows the position of No. 12 on MILL COMMON.