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

18 Caldey Island House is a two-bedroom end-of-terrace house in Cardiff (CF11 0JN). It has a recorded floor area of 70 m² (around 753 sq ft), construction records dating it to 1996-2002 and council tax band E. The latest certificate (September 2020) shows a C (score 75), near the top of the C band. The rating has held steady at C across 2 certificates since July 2010. Between certificates, lighting went from Average to Very Good; while window efficiency dropped from Good to Average and hot-water efficiency dropped from Very Good to Very Poor. The recommended improvements would push it to B (score 85). Main heating runs on electricity. At 70 m² this is the 65th 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. Other recorded features include a balcony and notable views.

Held since July 2006 — that's 20 years off the open market, well above the local norm. At 70 m² it's 18.6% larger than the typical home in the postcode (59 m² median across 85 EPCs).