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.
SWYN LLYR is a very large extended detached house of 266m², built sometime between 2003 and 2006, which could now be worth an estimated £1,027,536. It was last sold for £1,005,000 in August 2024, which was around 222% above the average August 2024 detached price in the Isle of Anglesey local authority area. The most recent EPC inspection was May 2014, where the current energy rating was C, and the potential energy rating was C.
Land registry data shows two sales for SWYN LLYR since 1st January 1995. The below table shows the price paid for the two sales, along with the average detached price in the Isle of Anglesey local authority area for the corresponding sale date. Both of the two SWYN LLYR 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 |
|---|---|---|---|
2024 23 AUG | £1,005,000 | £311,637 | 222% above HPI |
2016 24 OCT | £620,000 | £212,163 | 192% above HPI |
The below graph shows the average detached house price in the Isle of Anglesey local authority area over time, sourced from the HPI. The two SWYN LLYR sales from October 2016 and August 2024 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 October 2016 sale was for 192% above the HPI. So the extrapolation line tracks at 192% above the HPI over time, until the August 2024 sale, where it rises to 222% above the HPI. The line then continues to track at 222% above the HPI.

SWYN LLYR might now be worth an estimated £1,027,536.
This is based on house price inflation of 2.2%, between August 2024 and July 2026, for detached houses, in the Isle of Anglesey local authority area, as calculated by the Office for National Statistics and published in their UK House Price Index (HPI).
The 2.2% inflationary increase is applied to the most recent sale price for SWYN LLYR of £1,005,000 on 23rd August 2024. For the value to have increased from £1,005,000 to £1,027,536 over the two years and one month to July 2026, the following assumptions must hold true:
SWYN LLYR is 266m², which includes one extension, according to the EPC inspection conducted in May 2014. This puts it in the largest 10% of detached houses houses in Rhosneigr, based on EPC data. The below chart shows the distribution of detached houses houses by size in Rhosneigr, and where SWYN LLYR lies on this distribution: 93% of detached houses houses are smaller than SWYN LLYR, and 7% of houses are larger. Note that EPC data is not available for all properties in Rhosneigr.

SWYN LLYR sits on a plot of roughly 0.239 of an acre, or 969m². The below map shows the location of SWYN LLYR, 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 SWYN LLYR). 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.

SWYN LLYR is located in RHOSNEIGR, in the LL64 postcode district. The below map shows the position of SWYN LLYR in RHOSNEIGR.
