21, CWM GWYNLAIS, TONGWYNLAIS, CARDIFF, CF15 7HU - £102,000

Based on the December 2024 Price Paid Data (released on 29th January 2025), the November 2024 House Price Index (released on 15th January 2025), and the December 2024 Energy Performance of Buildings Data (released on 31st January 2025). Sources

21 CWM GWYNLAIS is a very small extended detached house of 88m², built sometime between 1976 and 1982. It was last sold for £102,000 in May 2000, which was around 21% below the average May 2000 detached price in the Cardiff local authority area. The most recent EPC inspection was March 2024, where the current energy rating was C, and the potential energy rating was B.

21 CWM GWYNLAIS Sold Prices

Land registry data shows three sales for 21 CWM GWYNLAIS since 1^st January 1995. The below table shows the price paid for the three sales, along with the average detached price in the Cardiff local authority area for the corresponding sale date. All of the three 21 CWM GWYNLAIS 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
2000 23 MAY	£102,000	£128,957	21% below HPI
1999 31 MAR	£88,000	£118,029	25% below HPI
1999 29 JAN	£85,000	£116,737	27% below HPI

21 CWM GWYNLAIS Price Paid vs. HPI Average

The below graph shows the average detached house price in the Cardiff local authority area over time, sourced from the HPI. The three 21 CWM GWYNLAIS sales between January 1999 and May 2000 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 March 1999 sale was for 25% below the HPI. So the extrapolation line tracks at 25% below the HPI over time, until the May 2000 sale, where it rises to 21% below the HPI. The line then continues to track at 21% below the HPI.

How Large is 21 CWM GWYNLAIS?

21 CWM GWYNLAIS is 88m², which includes one extension, according to the EPC inspection conducted in March 2024. This puts it in the smallest 10% of detached houses in Tongwynlais, based on EPC data. The below chart shows the distribution of detached houses by size in Tongwynlais, and where 21 CWM GWYNLAIS lies on this distribution: 10% of detached houses are smaller than 21 CWM GWYNLAIS, and 89% of houses are larger. Note that EPC data is not available for all properties in Tongwynlais.

21 CWM GWYNLAIS: Plot and Title Map

21 CWM GWYNLAIS sits on a plot of roughly 0.068 of an acre, or 274m². The below map shows the location of 21 CWM GWYNLAIS, 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 21 CWM GWYNLAIS). 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 21 CWM GWYNLAIS?

21 CWM GWYNLAIS is located in TONGWYNLAIS, in the CF15 postcode district. The below map shows the position of No. 21 on CWM GWYNLAIS.