23 Clos Derwen, Cardiff, CF23 5HJ

23 Clos Derwen is a four-bedroom detached house in Cardiff (CF23 5HJ). It has a recorded floor area of 125 m² (around 1345 sq ft), construction records dating it to 1996-2002 and council tax band G. The latest certificate (May 2014) shows a D (score 66), on the cusp of jumping into the C band. The recommended improvements would lift it to B (score 81), a 2-band jump. The latest certificate is from May 2014, so improvements made since then won't be reflected.

Untraded for 26 years, with the last transfer in April 2000. Only one transfer is on record with HM Land Registry, suggesting it has stayed in the same hands for a long time. Today's modelled estimate of £585,000 sits 211.3% above the 2000 sale of £187,950. On a £-per-square-foot basis, the last sale (£140/sq ft) was about 39.4% below the postcode norm. One planning record on file: an extension approved in 2015. Past consents include an extension and a conservatory, meaningful when judging how the property has evolved. At 125 m² it's 16.8% larger than the typical home in the postcode (107 m² median across 22 EPCs).