57 Don Avenue, Wharncliffe Side, Sheffield, S35 0BZ

57 Don Avenue is a four-bedroom detached house in Wharncliffe Side, Sheffield, Sheffield (S35 0BZ). It has a recorded floor area of 148 m² (around 1593 sq ft), construction records dating it to 1991-1995 and council tax band E. The latest certificate (October 2014) shows an E (score 53), well below the UK norm with real room to improve. Earlier certificates rated it D (June 2010); the latest reading is one band lower. Between certificates, roof efficiency went from Average to Good; while wall efficiency dropped from Good to Poor and hot-water efficiency dropped from Good to Average. The recommended improvements would lift it to B (score 81), a 3-band jump. The latest certificate is from October 2014, so improvements made since then won't be reflected.

At 148 m² it's 24.4% larger than the typical home in the postcode (119 m² median across 26 EPCs). On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. Across 1995–2011, sale prices on this property compounded at 4.9% per year. Today's modelled estimate of £427,000 sits 74.3% above the 2011 sale of £245,000. On a £-per-square-foot basis, the last sale (£154/sq ft) was about 31.9% above the typical sold price in the postcode. Last changed hands 15 years ago, in June 2011.