4, TANYBRYN, MOUNTAIN ASH, CF45 3UJ - £105,000

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.

4 TANYBRYN is a very small semi-detached house of 65m², built sometime between 1967 and 1975, which could now be worth an estimated £172,144. It was last sold for £105,000 in May 2019, which was around 6% below the average May 2019 semi-detached price in the Rhondda Cynon Taf local authority area. The most recent EPC inspection was January 2026, where the current energy rating was D, and the potential energy rating was C.

4 TANYBRYN Sold Prices

Land registry data shows one sale for 4 TANYBRYN since 1^st January 1995. The below table shows the price paid for the one sale, along with the average semi-detached price in the Rhondda Cynon Taf 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
2019 10 MAY	£105,000	£112,018	6% below HPI

What might 4 TANYBRYN be worth now?

4 TANYBRYN might now be worth an estimated £172,144.

This is based on house price inflation of 63.9%, between May 2019 and May 2026, for semi-detached houses, in the Rhondda Cynon Taf local authority area, as calculated by the Office for National Statistics and published in their UK House Price Index (HPI).

The 63.9% inflationary increase is applied to the most recent sale price for 4 TANYBRYN of £105,000 on 10th May 2019. For the value to have increased from £105,000 to £172,144 over the seven years to May 2026, the following assumptions must hold true:

• The value of 4 TANYBRYN has moved in line with the HPI for semi-detached houses in the Rhondda Cynon Taf local authority area.
• The May 2019 sale price of £105,000 represented a fair market value for the property.
• The size, condition, and specification of 4 TANYBRYN has not materially changed since May 2019.

How Large is 4 TANYBRYN?

4 TANYBRYN is 65m² according to the EPC inspection conducted in January 2026. This puts it in the smallest 10% of semi-detached houses in Mountain Ash, based on EPC data. The below chart shows the distribution of semi-detached houses by size in Mountain Ash, and where 4 TANYBRYN lies on this distribution: 5% of semi-detached houses are smaller than 4 TANYBRYN, and 95% of semi-detached houses are larger. Note that EPC data is not available for all properties in Mountain Ash.

4 TANYBRYN: Plot

4 TANYBRYN sits on a plot of roughly 0.093 of an acre, or 376m².

Where is 4 TANYBRYN?

4 TANYBRYN is located in MOUNTAIN ASH, in the CF45 postcode district.