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.
15 ROBARTES TERRACE is a small extended semi-detached house of 80m², built sometime before 1900, which could now be worth an estimated £312,978. It was last sold for £315,000 in August 2025, which was around 11% above the average August 2025 semi-detached price in the Cornwall local authority area. The most recent EPC inspection was June 2017, where the current energy rating was D, and the potential energy rating was B.
Land registry data shows two sales for 15 ROBARTES TERRACE since 1st January 1995. The below table shows the price paid for the two sales, along with the average semi-detached price in the Cornwall local authority area for the corresponding sale date. One of the two 15 ROBARTES TERRACE 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 |
|---|---|---|---|
2025 1 AUG | £315,000 | £283,103 | 11% above HPI |
2018 24 MAY | £200,000 | £214,922 | 7% below HPI |
The below graph shows the average semi-detached house price in the Cornwall local authority area over time, sourced from the HPI. The two 15 ROBARTES TERRACE sales from May 2018 and August 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 May 2018 sale was for 7% below the HPI. So the extrapolation line tracks at 7% below the HPI over time, until the August 2025 sale, where it rises to 11% above the HPI. The line then continues to track at 11% above the HPI.

15 ROBARTES TERRACE might now be worth an estimated £312,978.
This is based on house price deflation of 0.6%, between August 2025 and May 2026, for semi-detached houses, in the Cornwall local authority area, as calculated by the Office for National Statistics and published in their UK House Price Index (HPI).
The 0.6% deflationary decrease is applied to the most recent sale price for 15 ROBARTES TERRACE of £315,000 on 1st August 2025. For the value to have decreased from £315,000 to £312,978 over the one year and three months to May 2026, the following assumptions must hold true:
15 ROBARTES TERRACE is 80m², which includes one extension, according to the EPC inspection conducted in June 2017. This puts it in the smallest 30% of semi-detached houses houses in Illogan, based on EPC data. The below chart shows the distribution of semi-detached houses houses by size in Illogan, and where 15 ROBARTES TERRACE lies on this distribution: 28% of semi-detached houses houses are smaller than 15 ROBARTES TERRACE, and 70% of houses are larger. Note that EPC data is not available for all properties in Illogan.

15 ROBARTES TERRACE sits on a plot of roughly 0.072 of an acre, or 293m². The below map shows the location of 15 ROBARTES TERRACE, 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 15 ROBARTES TERRACE). 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.

15 ROBARTES TERRACE is located in ILLOGAN, in the TR16 postcode district. The below map shows the position of No. 15 on ROBARTES TERRACE.

Most recent sales first: