17 Darwin Avenue, Allenton, Derby, DE24 9JB

17 Darwin Avenue is a semi-detached house in Allenton, Derby, Derby (DE24 9JB). It has a recorded floor area of 48 m² (around 517 sq ft), construction records dating it to 1967-1975 and council tax band A. The latest certificate (December 2013) shows an E (score 53), well below the UK norm with real room to improve. When first surveyed in October 2013 the rating was F, the property has climbed 1 band since. Between certificates, wall efficiency went from Poor to Good, hot-water efficiency went from Very Poor to Poor and main heating went from Very Poor to Average; while lighting dropped from Good to Average. The recommended improvements would lift it to C (score 75), a 2-band jump. Main heating runs on electricity. The latest certificate is from December 2013, so improvements made since then won't be reflected. At 48 m² this is the 5th smallest of 23 units on EPC record in the building, where floor areas span 46–101 m². The building's EPC ratings span E to C, with this unit at the bottom. On EPC score it ranks last in the building (53 versus a best of 79).

At 48 m² it sits well below the postcode median (83 m² across 22 EPCs), making it one of the more compact homes locally. On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. Today's modelled estimate of £119,000 sits 170.5% above the 2013 sale of £44,000. On the market in December 2013 and unlisted since — roughly 12 years.