426 Catrine, Victoria Wharf, Watkiss Way, Cardiff, CF11 0SB

426 Catrine is a mid-terrace house in Cardiff (CF11 0SB). It has a recorded floor area of 41 m² (around 441 sq ft), construction records dating it to 2003-2006 and council tax band D. At 41 m² this is the smallest unit on EPC record across the building (41–116 m²). The building's EPC ratings span E to B, with this unit at the top. The latest certificate (June 2019) returns a B (score 84), comfortably above the UK average. When first surveyed in May 2009 the rating was C, the property has climbed 1 band since. Between certificates, lighting went from Average to Very Good; while hot-water efficiency dropped from Average to Poor. Main heating runs on electricity.

Held since December 2005 — that's 20 years off the open market, well above the local norm. At 41 m² it sits well below the postcode median (72 m² across 47 EPCs), making it one of the more compact homes locally. On energy efficiency it sits in the top 10% of properties in this postcode. On a £-per-square-foot basis, the last sale (£306/sq ft) was about 33.6% above the typical sold price in the postcode.