24 Lock Keepers Court, Blackweir Terrace, Cardiff, CF10 3EZ

24 Lock Keepers Court is a two-bedroom mid-terrace house in Cardiff (CF10 3EZ). It has a recorded floor area of 65 m² (around 700 sq ft), construction records dating it to 2003-2006 and council tax band E. The latest certificate (December 2019) returns a B (score 82), comfortably above the UK average. When first surveyed in June 2009 the rating was C, the property has climbed 1 band since. Between certificates, lighting went from Good to Very Good; while hot-water efficiency dropped from Poor to Very Poor and main heating dropped from Poor to Very Poor. Main heating runs on electricity. At 65 m² this is the 13th smallest of 36 units on EPC record in the building, where floor areas span 37–84 m². The building's EPC ratings span D to B, with this unit at the top.

It hasn't traded since December 2004, a hold of 21 years that's notably long for the area. Its energy rating outperforms most of the postcode (better than 80% of similar EPCs). Today's modelled estimate of £177,000 is 12% above the 2004 sale price.