TREFIN, UPPER MILL, PONTARDDULAIS, SWANSEA, SA4 8ND - £215,000

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.

TREFIN is a very large extended detached house of 149m², built sometime between 1950 and 1966, which could now be worth an estimated £324,417. It was last sold for £215,000 in August 2016, which was around 2% below the average August 2016 detached price in the Swansea local authority area. The most recent EPC inspection was November 2024, where the current energy rating was C, and the potential energy rating was B.

TREFIN Sold Prices

Land registry data shows one sale for TREFIN since 1^st January 1995. The below table shows the price paid for the one sale, along with the average detached price in the Swansea 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
2016 16 AUG	£215,000	£218,824	2% below HPI

What might TREFIN be worth now?

TREFIN might now be worth an estimated £324,417.

This is based on house price inflation of 50.9%, between August 2016 and April 2026, for detached houses, in the Swansea local authority area, as calculated by the Office for National Statistics and published in their UK House Price Index (HPI).

The 50.9% inflationary increase is applied to the most recent sale price for TREFIN of £215,000 on 16th August 2016. For the value to have increased from £215,000 to £324,417 over the ten years and four months to April 2026, the following assumptions must hold true:

• The value of TREFIN has moved in line with the HPI for detached houses in the Swansea local authority area.
• The August 2016 sale price of £215,000 represented a fair market value for the property.
• The size, condition, and specification of TREFIN has not materially changed since August 2016.

How Large is TREFIN?

TREFIN is 149m², which includes one extension, according to the EPC inspection conducted in November 2024. This puts it in the largest 20% of detached houses in Pontarddulais, based on EPC data. The below chart shows the distribution of detached houses by size in Pontarddulais, and where TREFIN lies on this distribution: 85% of detached houses are smaller than TREFIN, and 15% of detached houses are larger. Note that EPC data is not available for all properties in Pontarddulais.

TREFIN: Plot

TREFIN sits on a plot of roughly 0.135 of an acre, or 545m².

Where is TREFIN?

TREFIN is located on UPPER MILL in PONTARDDULAIS, in the SA4 postcode district.