14 Burwell Close, Pontprennau, Cardiff, CF23 8NS

14 Burwell Close is a detached house in Pontprennau, Cardiff, Cardiff (CF23 8NS). It has a recorded floor area of 114 m² (around 1227 sq ft), construction records dating it to 1996-2002 and council tax band F. The latest certificate (March 2014) shows an E (score 50), well below the UK norm with real room to improve. Earlier certificates rated it D (January 2010); the latest reading is one band lower. Between certificates, lighting went from Very Poor to Average; while wall efficiency dropped from Good to Poor and hot-water efficiency dropped from Good to Poor. The recommended improvements would lift it to B (score 85), a 3-band jump. The latest certificate is from March 2014, so improvements made since then won't be reflected.

It hasn't traded since March 2010, a hold of 16 years that's notably long for the area. At 114 m² the property is well over the postcode median (71 m² across 16 EPCs), placing it in the larger end of the local stock. On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. Across 1996–2010, sale prices on this property compounded at 7.8% per year. Today's modelled estimate of £371,000 sits 61.3% above the 2010 sale of £230,000. On a £-per-square-foot basis, the last sale (£187/sq ft) was about 26.6% above the typical sold price in the postcode.