25 Caldey Island House, Ferry Court, Cardiff, CF11 0JN

25 Caldey Island House is a mid-terrace house in Cardiff (CF11 0JN). It has a recorded floor area of 47 m² (around 506 sq ft), construction records dating it to 2003-2006 and council tax band C. The latest certificate (January 2020) shows a C (score 75), near the top of the C band. When first surveyed in April 2009 the rating was D, the property has climbed 1 band since. Between certificates, lighting went from Average to Good. The recommended improvements would push it to B (score 86). Main heating runs on electricity. At 47 m² this is the 24th smallest of 86 units on EPC record in the building, where floor areas span 36–87 m². The building's EPC ratings span E to B across 86 units on file.

Across 2006–2015, sale prices on this property compounded at -2.3% per year. Today's modelled estimate of £123,000 is 36.7% above the 2015 sale price. On a £-per-square-foot basis, the last sale (£178/sq ft) was about 41.2% below the postcode norm. Last changed hands 11 years ago, in October 2015. At 47 m² it's 23% smaller than the typical home in the postcode (61 m² median across 85 EPCs).