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.
23 MILL STREET is a small extended semi-detached house of 107m², built sometime between 1930 and 1949, which could now be worth an estimated £370,736. It was last sold for £347,500 in May 2025, which was around 48% above the average May 2025 semi-detached price in the Newport local authority area. The most recent EPC inspection was September 2024, where the current energy rating was D, and the potential energy rating was C.
Land registry data shows two sales for 23 MILL STREET since 1st January 1995. The below table shows the price paid for the two sales, along with the average semi-detached price in the Newport local authority area for the corresponding sale date. Both of the two 23 MILL STREET 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 30 MAY | £347,500 | £234,420 | 48% above HPI |
1996 26 APR | £72,500 | £46,029 | 58% above HPI |
The below graph shows the average semi-detached house price in the Newport local authority area over time, sourced from the HPI. The two 23 MILL STREET sales from April 1996 and May 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 April 1996 sale was for 58% above the HPI. So the extrapolation line tracks at 58% above the HPI over time, until the May 2025 sale, where it falls to 48% above the HPI. The line then continues to track at 48% above the HPI.

23 MILL STREET might now be worth an estimated £370,736.
This is based on house price inflation of 6.7%, between May 2025 and May 2026, for semi-detached houses, in the Newport local authority area, as calculated by the Office for National Statistics and published in their UK House Price Index (HPI).
The 6.7% inflationary increase is applied to the most recent sale price for 23 MILL STREET of £347,500 on 30th May 2025. For the value to have increased from £347,500 to £370,736 over the one year to May 2026, the following assumptions must hold true:
23 MILL STREET is 107m², which includes two extensions, according to the EPC inspection conducted in September 2024. This puts it in the smallest 40% of semi-detached houses houses in Caerleon, based on EPC data. The below chart shows the distribution of semi-detached houses houses by size in Caerleon, and where 23 MILL STREET lies on this distribution: 35% of semi-detached houses houses are smaller than 23 MILL STREET, and 65% of houses are larger. Note that EPC data is not available for all properties in Caerleon.

23 MILL STREET sits on a plot of roughly 0.051 of an acre, or 207m². The below map shows the location of 23 MILL STREET, 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 23 MILL STREET). 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.

23 MILL STREET is located in CAERLEON, in the NP18 postcode district. The below map shows the position of No. 23 on MILL STREET.

Most recent sales first: