12, ALLTMAWR ROAD, CARDIFF, CF23 6NQ - £615,000

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.

12 ALLTMAWR ROAD is a very large extended detached house of 280m², built sometime between 1950 and 1966, which could now be worth an estimated £1,115,422. It was last sold for £615,000 in May 2010, which was around 116% above the average May 2010 detached price in the Cardiff local authority area. The most recent EPC inspection was June 2023, where the current energy rating was C, and the potential energy rating was C.

12 ALLTMAWR ROAD Sold Prices

Land registry data shows two sales for 12 ALLTMAWR ROAD 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. Both of the two 12 ALLTMAWR ROAD 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 7 MAY	£615,000	£285,225	116% above HPI
2006 13 MAR	£432,500	£279,478	55% above HPI

12 ALLTMAWR ROAD 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 12 ALLTMAWR ROAD sales from March 2006 and May 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 March 2006 sale was for 55% above the HPI. So the extrapolation line tracks at 55% above the HPI over time, until the May 2010 sale, where it rises to 116% above the HPI. The line then continues to track at 116% above the HPI.

What might 12 ALLTMAWR ROAD be worth now?

12 ALLTMAWR ROAD might now be worth an estimated £1,115,422.

This is based on house price inflation of 81.4%, between May 2010 and June 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 81.4% inflationary increase is applied to the most recent sale price for 12 ALLTMAWR ROAD of £615,000 on 7th May 2010. For the value to have increased from £615,000 to £1,115,422 over the fourteen years and eleven months to June 2025, the following assumptions must hold true:

• The value of 12 ALLTMAWR ROAD has moved in line with the HPI for detached houses in the Cardiff local authority area.
• The May 2010 sale price of £615,000 represented a fair market value for the property.
• The size, condition, and specification of 12 ALLTMAWR ROAD has not materially changed since May 2010.

How Large is 12 ALLTMAWR ROAD?

12 ALLTMAWR ROAD is 280m², which includes three extensions, according to the EPC inspection conducted in June 2023. This puts it in the largest 10% of detached houses houses in Cardiff, based on EPC data. The below chart shows the distribution of detached houses houses by size in Cardiff, and where 12 ALLTMAWR ROAD lies on this distribution: 98% of detached houses houses are smaller than 12 ALLTMAWR ROAD, and 2% of houses are larger. Note that EPC data is not available for all properties in Cardiff.

12 ALLTMAWR ROAD: Plot and Title Map

12 ALLTMAWR ROAD sits on a plot of roughly 0.196 of an acre, or 795m². The below map shows the location of 12 ALLTMAWR ROAD, 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 12 ALLTMAWR ROAD). 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 12 ALLTMAWR ROAD?

12 ALLTMAWR ROAD is located in CARDIFF, in the CF23 postcode district. The below map shows the position of No. 12 on ALLTMAWR ROAD.