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

19 Lock Keepers Court is a two-bedroom end-of-terrace house in Cardiff (CF10 3EZ). It has a recorded floor area of 82 m² (around 883 sq ft), construction records dating it to 2003-2006 and council tax band E. The latest certificate (January 2022) shows a C (score 73). The rating has held steady at C across 2 certificates since October 2010. Between certificates, hot-water efficiency dropped from Good to Poor and main heating dropped from Good to Average. Main heating runs on electricity. At 82 m² this is the 35th 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 across 36 units on file.

Held since December 2004 — that's 21 years off the open market, well above the local norm. At 82 m² it's 22.4% larger than the typical home in the postcode (67 m² median across 35 EPCs). Today's modelled estimate of £196,000 is 48.5% above the 2004 sale price. On a £-per-square-foot basis, the last sale (£150/sq ft) was about 25.5% below the postcode norm.