12 Duncansby House, Ferry Court, Cardiff, CF11 0AT

12 Duncansby House is a mid-terrace house in Cardiff (CF11 0AT). It has a recorded floor area of 43 m² (around 463 sq ft), construction records dating it to 2007 onwards and council tax band D. The latest certificate (August 2019) returns a high B (score 86), putting the home a stone's throw from an A rating. When first surveyed in February 2011 the rating was C, the property has climbed 1 band since. Between certificates, lighting went from Average to Very Good. Main heating runs on electricity. At 43 m² this is the 15th smallest of 65 units on EPC record in the building, where floor areas span 32–79 m². The building's EPC ratings span E to B, with this unit at the top.

Today's modelled estimate of £126,000 is 13.7% below the 2008 sale of £146,000, running counter to the wider postcode trend, which makes the EPC and condition history especially worth a look. On a £-per-square-foot basis, the last sale (£315/sq ft) was about 21.6% above the typical sold price in the postcode. Untraded for 18 years, with the last transfer in January 2008. That sale landed at the peak of the pre-credit-crunch market, which is a useful reference point when interpreting the price. At 43 m² it's 28.8% smaller than the typical home in the postcode (60 m² median across 64 EPCs).