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.
PLAS GWYN is a large extended detached house of 141m², built sometime between 1930 and 1949, which could now be worth an estimated £459,578. It was last sold for £150,000 in May 2002, which was around 41% above the average May 2002 detached price in the Powys local authority area. The most recent EPC inspection was July 2025, where the current energy rating was D, and the potential energy rating was C.
Land registry data shows one sale for PLAS GWYN since 1st January 1995. The below table shows the price paid for the one sale, along with the average detached price in the Powys local authority area for the corresponding sale date. The average price is sourced from the Office for National Statistics' House Price Index (HPI).
| Date | Price | HPI Price | Variation from HPI |
|---|---|---|---|
2002 13 MAY | £150,000 | £106,113 | 41% above HPI |
PLAS GWYN might now be worth an estimated £459,578.
This is based on house price inflation of 206.4%, between May 2002 and May 2026, for detached houses, in the Powys local authority area, as calculated by the Office for National Statistics and published in their UK House Price Index (HPI).
The 206.4% inflationary increase is applied to the most recent sale price for PLAS GWYN of £150,000 on 13th May 2002. For the value to have increased from £150,000 to £459,578 over the 24 years to May 2026, the following assumptions must hold true:
PLAS GWYN is 141m², which includes three extensions, according to the EPC inspection conducted in July 2025. This puts it in the largest 30% of detached houses in Newtown, based on EPC data. The below chart shows the distribution of detached houses by size in Newtown, and where PLAS GWYN lies on this distribution: 76% of detached houses are smaller than PLAS GWYN, and 24% of detached houses are larger. Note that EPC data is not available for all properties in Newtown.

PLAS GWYN sits on a plot of roughly 0.219 of an acre, or 885m².
PLAS GWYN is located on BARNFIELDS in NEWTOWN, in the SY16 postcode district.
Most recent sales first: