20, PENMAES, PENTYRCH, CARDIFF, CF15 9QS - £270,000

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.

20 PENMAES is a midsized detached house of 146m², built sometime between 1976 and 1982, which could now be worth an estimated £445,727. It was last sold for £270,000 in August 2007, which was around 13% below the average August 2007 detached price in the Cardiff local authority area. The most recent EPC inspection was December 2015, where the current energy rating was B, and the potential energy rating was B.

20 PENMAES Sold Prices

Land registry data shows two sales for 20 PENMAES since 1^st January 1995. The below table shows the price paid for the two sales, along with the average detached price in the Cardiff local authority area for the corresponding sale date. One of the two 20 PENMAES sales was for below the average price, whilst the other was for above 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
2007 1 AUG	£270,000	£310,181	13% below HPI
1997 29 AUG	£110,000	£109,104	1% above HPI

20 PENMAES 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 two 20 PENMAES sales from August 1997 and August 2007 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 August 1997 sale was for 1% above the HPI. So the extrapolation line tracks at 1% above the HPI over time, until the August 2007 sale, where it falls to 13% below the HPI. The line then continues to track at 13% below the HPI.

What might 20 PENMAES be worth now?

20 PENMAES might now be worth an estimated £445,727.

This is based on house price inflation of 65.1%, between August 2007 and October 2025, for detached houses, in the Cardiff local authority area, as calculated by the Office for National Statistics and published in their UK House Price Index (HPI).

The 65.1% inflationary increase is applied to the most recent sale price for 20 PENMAES of £270,000 on 1st August 2007. For the value to have increased from £270,000 to £445,727 over the seventeen years and ten months to October 2025, the following assumptions must hold true:

• The value of 20 PENMAES has moved in line with the HPI for detached houses in the Cardiff local authority area.
• The August 2007 sale price of £270,000 represented a fair market value for the property.
• The size, condition, and specification of 20 PENMAES has not materially changed since August 2007.

How Large is 20 PENMAES?

20 PENMAES is 146m² according to the EPC inspection conducted in December 2015. This puts it in the largest 50% of detached houses houses in Pentyrch, based on EPC data. The below chart shows the distribution of detached houses houses by size in Pentyrch, and where 20 PENMAES lies on this distribution: 59% of detached houses houses are smaller than 20 PENMAES, and 41% of houses are larger. Note that EPC data is not available for all properties in Pentyrch.

20 PENMAES: Plot and Title Map

20 PENMAES sits on a plot of roughly 0.108 of an acre, or 437m². The below map shows the location of 20 PENMAES, 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 20 PENMAES). 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 20 PENMAES?

20 PENMAES is located in PENTYRCH, in the CF15 postcode district. The below map shows the position of No. 20 on PENMAES.