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

21 Douglas House is a two-bedroom mid-terrace house in Cardiff (CF11 0LD). It has a recorded floor area of 60 m² (around 646 sq ft), construction records dating it to 2012-2021 and council tax band E. The latest certificate (January 2026) shows a C (score 73). 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 85). Main heating runs on electricity. This certificate was lodged in the last six months, so the rating reflects current condition. At 60 m² this is the 45th 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 60 m² it's 20% larger than the typical home in the postcode (50 m² median across 63 EPCs). Last sold in September 2015, so it's been off the market for around 11 years. Today's modelled estimate of £186,000 is 20% above the 2015 sale price.