23 Douglas House, Ferry Court, Cardiff, CF11 0LD

23 Douglas House is a two-bedroom mid-terrace house in Cardiff (CF11 0LD). It has a recorded floor area of 59 m² (around 635 sq ft), construction records dating it to 2012 onwards and council tax band E. The latest certificate (May 2026) shows a C (score 69), just inside the C band. The rating has held steady at C across 2 certificates since June 2015. Between certificates, wall efficiency dropped from Very Good to Good and window efficiency dropped from Good to Average. The recommended improvements would push it to B (score 83). Main heating runs on electricity. This certificate was lodged in the last six months, so the rating reflects current condition. At 59 m² this is the 36th smallest of 64 units on EPC record in the building, where floor areas span 31–81 m². The building's EPC ratings span D to B across 64 units on file.

At 59 m² it's 18% larger than the typical home in the postcode (50 m² median across 63 EPCs). On the market in November 2015 and unlisted since — roughly 11 years. Today's modelled estimate of £184,000 is 24.4% above the 2015 sale price.