6 Burnell Avenue, Welling, DA16 3HN

6 Burnell Avenue is a semi-detached house in Welling (DA16 3HN). It has a recorded floor area of 116 m² (around 1249 sq ft), construction records dating it to 1930-1949 and council tax band D. The latest certificate (December 2014) shows an E (score 45), well below the UK norm with real room to improve. The rating has held steady at E across 2 certificates since March 2009. Between certificates, hot-water efficiency went from Average to Good and main heating went from Average to Good; while wall efficiency dropped from Good to Poor and roof efficiency dropped from Good to Very Poor. The recommended improvements would lift it to C (score 69), a 2-band jump. The latest certificate is from December 2014, so improvements made since then won't be reflected.

It hasn't traded since July 2009, a hold of 17 years that's notably long for the area. That sale fell during the post-crash dip, which often skews comparisons against later neighbouring sales. At 116 m² the property is well over the postcode median (78 m² across 30 EPCs), placing it in the larger end of the local stock. It lags the bulk of the postcode on energy efficiency (less efficient than 73% of similar EPCs). Today's modelled estimate of £448,000 sits 85.1% above the 2009 sale of £242,000. On a £-per-square-foot basis, the last sale (£194/sq ft) was about 38.3% below the postcode norm.