15 Lady Isle House, Ferry Court, Cardiff, CF11 0JH

15 Lady Isle House is a mid-terrace house in Cardiff (CF11 0JH). It has a recorded floor area of 38 m² (around 409 sq ft), construction records dating it to 2003-2006 and council tax band D. The latest certificate (November 2019) returns a high B (score 88), putting the home a stone's throw from an A rating. When first surveyed in August 2009 the rating was C, the property has climbed 1 band since. Between certificates, lighting went from Very Poor to Very Good. Main heating runs on electricity. At 38 m² this is the 13th smallest of 56 units on EPC record in the building, where floor areas span 23–123 m². The building's EPC ratings span D to B, with this unit at the top. On EPC score it ranks first in the building (88 versus a worst of 65).

Held since July 2005 — that's 21 years off the open market, well above the local norm. At 38 m² it sits well below the postcode median (65 m² across 55 EPCs), making it one of the more compact homes locally. Today's modelled estimate of £133,000 is 24.3% above the 2005 sale price.