1a, Derby Road, Aston On Trent, Derby, DE72 2AE

1a is a semi-detached house in Aston-On-Trent, Derby, Derby (DE72 2AE). It has a recorded floor area of 111 m² (around 1195 sq ft), construction records dating it to 1900-1929 and council tax band B. The latest certificate (February 2021) shows an E (score 51), well below the UK norm with real room to improve. When first surveyed in July 2009 the rating was F, the property has climbed 1 band since. Between certificates, window efficiency went from Very Poor to Average, hot-water efficiency went from Poor to Good and main heating went from Average to Good; while roof efficiency dropped from Good to Very Poor and lighting dropped from Very Good to Good. The recommended improvements would lift it to C (score 72), a 2-band jump. At 111 m² this is the 16th smallest of 27 units on EPC record in the building, where floor areas span 67–188 m². The building's EPC ratings span E to C, with this unit at the bottom.

It lags the bulk of the postcode on energy efficiency (less efficient than 77% of similar EPCs). Across 2009–2021, sale prices on this property compounded at 3.1% per year. Most recent transfer: July 2021 at £250,000. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.