12 Eddystone House, Ferry Court, Cardiff, CF11 0AU

12 Eddystone House is a one-bedroom mid-terrace house in Cardiff (CF11 0AU). It has a recorded floor area of 48 m² (around 517 sq ft), construction records dating it to 1996-2002 and council tax band D. The latest certificate (August 2020) shows a C (score 80), near the top of the C band. The rating has held steady at C across 2 certificates since November 2009. Between certificates, hot-water efficiency went from Very Poor to Average and lighting went from Poor to Very Good; while wall efficiency dropped from Very Good to Good and window efficiency dropped from Good to Average. The recommended improvements would push it to B (score 85). Main heating runs on electricity. At 48 m² this is the 13th smallest of 35 units on EPC record in the building, where floor areas span 38–95 m². The building's EPC ratings span D to B across 35 units on file.

On the market in May 2017 and unlisted since — roughly 9 years. At 48 m² it's 23.8% smaller than the typical home in the postcode (63 m² median across 34 EPCs). Across 2010–2017, sale prices on this property compounded at 4.6% per year. Today's modelled estimate of £137,000 is 14.2% above the 2017 sale price.