Pentwyn Cottage, Groeswen, Cardiff, CF15 7UU

Pentwyn Cottage is a detached house in Groeswen, Cardiff, Cardiff (CF15 7UU). It has a recorded floor area of 132 m² (around 1421 sq ft) and construction records dating it to 1900-1929. The latest certificate (June 2012) shows a D (score 67), on the cusp of jumping into the C band. The recommended improvements would lift it to B (score 86), a 2-band jump. Main heating runs on oil. The latest certificate is from June 2012, so improvements made since then won't be reflected.

Held since June 2007 — that's 19 years off the open market, well above the local norm. That sale landed at the peak of the pre-credit-crunch market, which is a useful reference point when interpreting the price. Today's modelled estimate of £458,000 sits 52.7% above the 2007 sale of £300,000. On a £-per-square-foot basis, the last sale (£211/sq ft) was about 16.9% below the postcode norm. One planning record on file: an extension approved in 2010. Past consents include an extension, meaningful when judging how the property has evolved. At 132 m² it's 18% smaller than the typical home in the postcode (161 m² median across 5 EPCs).