39, GLANLAY STREET, MOUNTAIN ASH, CF45 3TL - £80,500

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.

39 GLANLAY STREET is a very small extended semi-detached house of 74m², built sometime between 1900 and 1929, which could now be worth an estimated £80,876. It was last sold for £80,500 in September 2023, which was around 51% below the average September 2023 semi-detached price in the Rhondda Cynon Taf local authority area. The most recent EPC inspection was February 2025, where the current energy rating was C, and the potential energy rating was B.

39 GLANLAY STREET Sold Prices

Land registry data shows four sales for 39 GLANLAY STREET since 1^st January 1995. The below table shows the price paid for the four sales, along with the average semi-detached price in the Rhondda Cynon Taf local authority area for the corresponding sale date. All of the four 39 GLANLAY STREET sales were 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
2023 4 SEP	£80,500	£163,592	51% below HPI
2007 11 SEP	£60,000	£105,479	43% below HPI
2006 8 SEP	£55,000	£99,473	45% below HPI
2003 31 OCT	£26,000	£59,475	56% below HPI

39 GLANLAY STREET Price Paid vs. HPI Average

The below graph shows the average semi-detached house price in the Rhondda Cynon Taf local authority area over time, sourced from the HPI. The four 39 GLANLAY STREET sales between October 2003 and September 2023 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 September 2007 sale was for 43% below the HPI. So the extrapolation line tracks at 43% below the HPI over time, until the September 2023 sale, where it falls to 51% below the HPI. The line then continues to track at 51% below the HPI.

What might 39 GLANLAY STREET be worth now?

39 GLANLAY STREET might now be worth an estimated £80,876.

This is based on house price inflation of 0.5%, between September 2023 and February 2025, 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 0.5% inflationary increase is applied to the most recent sale price for 39 GLANLAY STREET of £80,500 on 4th September 2023. For the value to have increased from £80,500 to £80,876 over the two years and seven months to February 2025, the following assumptions must hold true:

• The value of 39 GLANLAY STREET has moved in line with the HPI for semi-detached houses in the Rhondda Cynon Taf local authority area.
• The September 2023 sale price of £80,500 represented a fair market value for the property.
• The size, condition, and specification of 39 GLANLAY STREET has not materially changed since September 2023.

How Large is 39 GLANLAY STREET?

39 GLANLAY STREET is 74m², which includes one extension, according to the EPC inspection conducted in February 2025. This puts it in the smallest 10% of semi-detached houses houses in Mountain Ash, based on EPC data. The below chart shows the distribution of semi-detached houses houses by size in Mountain Ash, and where 39 GLANLAY STREET lies on this distribution: 8% of semi-detached houses houses are smaller than 39 GLANLAY STREET, and 92% of houses are larger. Note that EPC data is not available for all properties in Mountain Ash.

39 GLANLAY STREET: Plot and Title Map

39 GLANLAY STREET sits on a plot of roughly 0.028 of an acre, or 114m². The below map shows the location of 39 GLANLAY STREET, 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 39 GLANLAY STREET). 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.

Where is 39 GLANLAY STREET?

39 GLANLAY STREET is located in MOUNTAIN ASH, in the CF45 postcode district. The below map shows the position of No. 39 on GLANLAY STREET.