18, MOSTYN SQUARE, LLANISHEN, CARDIFF, CF14 5FE - £340,000

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 MOSTYN SQUARE is a very small detached house of 73m², built in 2008, which could now be worth an estimated £516,989. It was last sold for £340,000 in August 2015, which was about the average August 2015 detached price in the Cardiff local authority area. The most recent EPC inspection was September 2008, where the current energy rating was B, and the potential energy rating was B.

18 MOSTYN SQUARE Sold Prices

Land registry data shows two sales for 18 MOSTYN SQUARE 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 18 MOSTYN SQUARE sales was roughly equal to 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
2015 28 AUG	£340,000	£341,397	Close to HPI
2009 23 JAN	£285,000	£271,515	5% above HPI

18 MOSTYN SQUARE 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 18 MOSTYN SQUARE sales from January 2009 and August 2015 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 January 2009 sale was for 5% above the HPI. So the extrapolation line tracks at 5% above the HPI over time, until the August 2015 sale, where it falls to roughly the same level as the HPI. The line then continues to track in line with the HPI.

What might 18 MOSTYN SQUARE be worth now?

18 MOSTYN SQUARE might now be worth an estimated £516,989.

This is based on house price inflation of 52.1%, between August 2015 and July 2026, 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 52.1% inflationary increase is applied to the most recent sale price for 18 MOSTYN SQUARE of £340,000 on 28th August 2015. For the value to have increased from £340,000 to £516,989 over the eleven years and one month to July 2026, the following assumptions must hold true:

• The value of 18 MOSTYN SQUARE has moved in line with the HPI for detached houses in the Cardiff local authority area.
• The August 2015 sale price of £340,000 represented a fair market value for the property.
• The size, condition, and specification of 18 MOSTYN SQUARE has not materially changed since August 2015.

How Large is 18 MOSTYN SQUARE?

18 MOSTYN SQUARE is 73m² according to the EPC inspection conducted in September 2008. This puts it in the smallest 10% of detached houses in Cardiff, based on EPC data. The below chart shows the distribution of detached houses by size in Cardiff, and where 18 MOSTYN SQUARE lies on this distribution: 5% of detached houses are smaller than 18 MOSTYN SQUARE, and 94% of detached houses are larger. Note that EPC data is not available for all properties in Cardiff.

18 MOSTYN SQUARE: Plot

18 MOSTYN SQUARE sits on a plot of roughly 0.072 of an acre, or 291m².

Where is 18 MOSTYN SQUARE?

18 MOSTYN SQUARE is located in LLANISHEN, in the CF14 postcode district.