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

18 Eddystone House is a one-bedroom semi-detached house in Cardiff (CF11 0AU). It has a recorded floor area of 41 m² (around 441 sq ft), construction records dating it to 1996-2002 and council tax band D. There is a swimming pool on the plot, uncommon for the area. Other recorded features include a balcony. At 41 m² this is the 4th 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. The latest certificate (January 2020) shows a C (score 77), near the top of the C band. When first surveyed in November 2009 the rating was D, the property has climbed 1 band since. Between certificates, hot-water efficiency went from Very Poor to Poor and lighting went from Average to Very Good; while wall efficiency dropped from Very Good to Good and window efficiency dropped from Good to Average. Main heating runs on electricity.

At 41 m² it sits well below the postcode median (63 m² across 34 EPCs), making it one of the more compact homes locally. Across 2009–2017, sale prices on this property compounded at 1.5% per year. Today's modelled estimate of £138,000 is 15% above the 2017 sale price. On a £-per-square-foot basis, the last sale (£272/sq ft) was about 17.1% above the typical sold price in the postcode. Last sold in November 2017, so it's been off the market for around 9 years.