18, LON PENLLYN, CARDIFF, CF14 6BZ - £273,000

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.

18 LON PENLLYN is a very small semi-detached house of 83m², built sometime between 1950 and 1966, which could now be worth an estimated £497,318. It was last sold for £273,000 in August 2010, which was around 56% above the average August 2010 semi-detached price in the Cardiff local authority area. The most recent EPC inspection was June 2010, where the current energy rating was D, and the potential energy rating was D.

18 LON PENLLYN Sold Prices

Land registry data shows three sales for 18 LON PENLLYN since 1^st January 1995. The below table shows the price paid for the three sales, along with the average semi-detached price in the Cardiff local authority area for the corresponding sale date. All of the three 18 LON PENLLYN sales were 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
2010 9 AUG	£273,000	£174,719	56% above HPI
2002 4 OCT	£184,200	£110,709	66% above HPI
2002 16 MAY	£100,000	£95,797	4% above HPI

18 LON PENLLYN Price Paid vs. HPI Average

The below graph shows the average semi-detached house price in the Cardiff local authority area over time, sourced from the HPI. The three 18 LON PENLLYN sales between May 2002 and August 2010 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 October 2002 sale was for 66% above the HPI. So the extrapolation line tracks at 66% above the HPI over time, until the August 2010 sale, where it falls to 56% above the HPI. The line then continues to track at 56% above the HPI.

What might 18 LON PENLLYN be worth now?

18 LON PENLLYN might now be worth an estimated £497,318.

This is based on house price inflation of 82.2%, between August 2010 and June 2025, for semi-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 82.2% inflationary increase is applied to the most recent sale price for 18 LON PENLLYN of £273,000 on 9th August 2010. For the value to have increased from £273,000 to £497,318 over the fifteen years and two months to June 2025, the following assumptions must hold true:

• The value of 18 LON PENLLYN has moved in line with the HPI for semi-detached houses in the Cardiff local authority area.
• The August 2010 sale price of £273,000 represented a fair market value for the property.
• The size, condition, and specification of 18 LON PENLLYN has not materially changed since August 2010.

How Large is 18 LON PENLLYN?

18 LON PENLLYN is 83m² according to the EPC inspection conducted in June 2010. This puts it in the smallest 20% of semi-detached houses houses in Cardiff, based on EPC data. The below chart shows the distribution of semi-detached houses houses by size in Cardiff, and where 18 LON PENLLYN lies on this distribution: 12% of semi-detached houses houses are smaller than 18 LON PENLLYN, and 88% of houses are larger. Note that EPC data is not available for all properties in Cardiff.

18 LON PENLLYN: Plot and Title Map

18 LON PENLLYN sits on a plot of roughly 0.079 of an acre, or 318m². The below map shows the location of 18 LON PENLLYN, 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 18 LON PENLLYN). 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 18 LON PENLLYN?

18 LON PENLLYN is located in CARDIFF, in the CF14 postcode district. The below map shows the position of No. 18 on LON PENLLYN.