25 Cwm Gwynlais, Tongwynlais, Cardiff, CF15 7HU

25 Cwm Gwynlais is a detached house in Tongwynlais, Cardiff, Cardiff (CF15 7HU). It has a recorded floor area of 104 m² (around 1119 sq ft), construction records dating it to 1976-1982 and council tax band E. The latest certificate (October 2013) shows an E (score 45), well below the UK norm with real room to improve. The recommended improvements would lift it to B (score 81), a 3-band jump. The latest certificate is from October 2013, so improvements made since then won't be reflected.

Held since August 2001 — that's 25 years off the open market, well above the local norm. Only one transfer is on record with HM Land Registry, suggesting it has stayed in the same hands for a long time. On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. Today's modelled estimate of £350,000 sits 212.5% above the 2001 sale of £112,000. On a £-per-square-foot basis, the last sale (£100/sq ft) was about 46.5% below the postcode norm. One planning record on file: an extension approved in 2014. Past consents include an extension, meaningful when judging how the property has evolved.